Welcome Message
On behalf of the Wireless and Optical Communications Conference (WOCC) Organizing Committee, I welcome you to the 16th WOCC Conference. The scheduling of WOCC 2007 is quite timely, as we are at an important juncture in yet another telecommunications evolution. This one has the potential to significantly change, for the better, our every day life experiences, both on the job and with our families. It is also appropriate that it is held at the New Jersey Institute of Technology, a State University that is dedicated and focused on the key technologies that are influencing mankind’s technological advancement. The theme of this year’s conference is Convergent Communications over public mobile wireless networks, public fixed broadband wire line networks, and private customer premises networks. The integration of these three networks is the focus of a new next-generation network (NGN) providing convergent user- centric services that are no longer associated with the types of network access or content media. Instead, these convergent user-centric services will offer seamless delivery of multimedia applications including voice, data, image, and streaming video independent of any access technologies. As throughput becomes ever faster and more cost effective, ubiquitous broadband coverage becomes a reality, creating ary Chan is the President of the Wireless incredible opportunities. We will move to a life M environment where our communications are truly “Always Group of Alcatel-Lucent. On”. It will bring a personalized multimedia experience A veteran in the wireless industry, she is which is achieved via an IP Network Transformation and responsible for the development and delivery universal voice and broadband access. At WOCC 2007, we of current and next-generation wireless have gathered a group of elite industrial and academic networking solutions and infrastructure for the experts from the tri-state and other regions to stimulate world’s leading service providers and thought provoking discussions in these critical technical enterprises. and business areas which are the key enablers for the next chapter in the telecommunications industry. Previously, Mary Chan was Vice President, Mobility Access Research and Development The conference is organized in 24 sessions. During the for Lucent Technologies, where she led a keynote and plenary sessions top executives from many diverse global R&D organization with teams companies and organizations will share their keen insight in the United States, Europe, China and India. on the state of the industry. The 20 technical sessions are Prior to that, Mary Chan was Director of organized in such a way that engineers, professors and Business and Financial Management for students can discuss their ideas in focused groups, reaching Lucent, responsible for financial and strategic deeper into the technologies and the science which supports business planning, operations, and bids and those technologies. I believe you will find the range of proposals. topics quite diverse and extremely useful. Mary Chan holds B.S. and M.S. degrees in I hope that you will enjoy the conference’s 2-day program, Electrical Engineering from Columbia and also find time to explore the campus of NJIT as well. University. She also has been named as one of the “Outstanding 50 Chinese Americans in Business” by the Asian American Business Mary Chan Development Center. Conference General Chair
- i - Message from NJIT President
- ii - The Sixteenth Annual Wireless and Optical Communications Conference “Convergent Communications”
April 27-28, 2007, Campus Center, NJIT, Newark, New Jersey, U.S.A.
Table of Contents Welcome Message ...... i Message from NJIT President...... ii Conference Theme...... 1 Conference Planning Committee ...... 2 Message from Conference Organizer...... 3 Conference Program...... 5 Keynote Speakers ...... 11 P1 – Plenary Session...... 15 P2 – Plenary Session...... 20 Technical Sessions...... 25 Program Chairs ...... 25 WC1 − Technical Session: Next Generation Wireless Communications I ...... 29 WC2 − Technical Session: Wireless Fundamental Researches...... 35 WC3 − Panel Session: Mobile Applications ...... 41 WC4 − Technical Session: Wireless ICs and SoC Design...... 47 WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks ...... 53 WC6 − Technical Session: Next Generation Wireless Communications II...... 59 WC7 − Technical Session: Mobile Networking and Security...... 64 NS1 − Technical Session: New Services and Challenges in a Converged Network...... 70 NS2 − Technical Session: Network Reliability...... 75 NS3 − Technical Session: Migration to NGN and Mobile Broadband ...... 80 NS4 − Technical Session: Network Planning, Design Methods and Tools ...... 85 NS5 − Technical Session: Emerging and Innovative Technologies...... 90 MM1 − Technical Session: P2P Technology and Its Applications ...... 95 MM2 − Technical Session: Multimedia Applications...... 100 MM3 − Technical Session: Multimedia Indexing and Analysis ...... 106 MM4 − Technical Session: Multimedia Content Analysis and Delivery...... 111 OC1 − Technical Session: Optical Network Architecture, Design, and Planning ...... 116 OC2 − Technical Session: Optical Communication Technologies ...... 121 OC3 − Technical Session: Advanced Optoelectronic Components ...... 126 OC4 − Technical Session: Optical Communication Components and Subsystems ...... 132 Poster Session ...... 137 Conference Participants ...... 142
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Conference Theme
The sixteenth Annual Wireless and Optical Communications Conference (WOCC) will bring together technical experts and business leaders from the North America and Pacific Rim to discuss multimedia, optical, and wireless communications technologies and business opportunities. The theme of WOCC 2007 is Convergent Communications over public mobile wireless networks, public fixed broadband wireline networks, and private customer premises networks. The integration of these three networks is the focus of a new next-generation network (NGN) providing convergent user-centric services that are no longer associated with the types of network access or content media. Instead, these convergent user-centric services will offer seamless delivery of multimedia applications including voice, data, image, and streaming video independent of any access technologies. The transport layer protocol is converging on Internet Protocol (IP) that propelled the growth of World Wide Web (WWW). The network and service providers will need to deploy standard-compliant converged networks and offer these new value- added services to save operational cost and grow their revenue. Convergent Communications can truly be considered as the enabler for the next phase of growth for the telecommunication industry.
Financial Sponsors
Alcatel-Lucent http://www.alcatel-lucent.com
Chunghwa Telecom http://www.cht.com.tw
Microelectronics Technology Inc. http://www.mti.com.tw/
Anadigics, Inc. http://www.anadigics.com
Center for Wireless Communications and Signal Processing Research New Jersey Institute of Technology http://www.ccspr.njit.edu/index.html
WANDL, Inc. http://www.wandl.com
- 1 - Conference Planning Committee
Conference Chair Registration Mary Chan Alcatel-Lucent Xin He Verizon Wireless Conference Organizer Web Manager Qi Bi Alcatel-Lucent Shuang Yu Alcatel-Lucent Program Chairs Jie Hu NJIT Angela Chiu AT&T Public Relations Ying (Emily) Hu Alcatel-Lucent Kevin Lu Telcordia Zhengyu Huang RSoft Shuang Yu Alcatel-Lucent Guangying Li Alcatel-Lucent Kang Yueh Crown Castle Zhu Liu AT&T Haibin Huang Conexant Wei Luo Broadcom Steering Committee Benjamin Tang Alcatel-Lucent Mengchu Zhou NJIT Bin Wei AT&T Wen-Ning Hsieh DVI Communications Yudong Yao Stevens Institute of James Hwang Lehigh University Technology Heather Yu Princeton Fuel Research Conference Coordinator Allen Chen Innovatech Solutions (USA) Ying (Emily) Hu Alcatel-Lucent Hongya Ge NJIT Sigen Ye Alcatel-Lucent Technical Committee Publication Angela Chiu AT&T Jianguo Chen LSI Ying (Emily) Hu Alcatel-Lucent Hong Zhang InterDigital Zhengyu Huang RSoft Treasurer Guangying Li Alcatel-Lucent Zhu Liu AT&T Ying (Emily) Hu Alcatel-Lucent Benjamin Tang Alcatel-Lucent James Hwang Lehigh University Bin Wei AT&T Exhibits: Yudong Yao Stevens Institute of Russell Sun Alcatel-Lucent Technology Jian Wu Zhejiang University (China) Fund Raising Zhaohui Wu Zhejiang University (China) Allen Chen Innovatech Solutions (USA) Lei Zong NEC Laboratories America Pan Liu Broadcom Ching-Yung Lin IBM Wen-Ning Hsieh DVI Communications Russell Sun Alcatel-Lucent Local Arrangement Wei Luo Broadcom Deyu Zhou Opnext Mengchu Zhou New Jersey Institute of Technology (NJIT ) Yanchao Zhang NJIT
- 2 - Message from Conference Organizer
The wireless communications have enjoyed an explosive growth in the last two decades. It has changed from the analog telephony to broadband ubiquitous digital mobile applications. The next generation of wireless technology is around the corner as the customers deploying 3G wireless. The fast pace of wireless is driven by the highly integrated semiconductor mobile devices, diversified mobile applications, reliable and secure mobile networks, fundamental research breakthroughs, and constant changing people life styles. The wireless technical program of WOCC 2007 will bring together the experts from industry and academia to identify the new trends, exchange ideas and stimulate discussions. The optical communication sector is entering an exciting development stage, which is nick named the era of Optical 2.0. At the network level, we will see ROADM-based all-optical networks being widely deployed in metro, regional, and core networks. In access networks, widespread FTTX deployment based on various PON technologies (EPON, BPON, GPON, WDM-PON) would enable immense potential for broadband usage and economic growth. All these network evolutions bring tremendous challenges to network architecture, design and planning in order to increase functionality while reducing cost. At the system level, record breaking DWDM transmission in both system reach and capacity is fueled by advances in modulation techniques, electronic dispersion compensation, and the application of Raman amplification. Field deployments of 40Gb/s and 100Gb/s systems are already underway and the current focus is to develop practical technology solutions for high capacity and reconfigurable systems. As a result, a new generation of optical components is emerging, which includes photonic band gap fibers, tunable lasers and photonics integrated circuit based components. In addition, the advanced optical component technologies have been applied to a broad range of applications such as display, sensors and optical interconnect. The optical program of WOCC 2007 is certainly reflecting many of the above exciting developments and features four technical sessions with speakers from top carriers, leading system/components providers, and academic community. Ubiquitous access of multimedia content has significantly changed our life style. Current technologies enable users to create, publish, and consume multimedia contents easily and enjoyably. Nevertheless, efficiently locating favorite contents in large volume of multimedia data and seamlessly delivering the contents to the various end devices (from HDTV to cell phone) through a wide range of channels (from wireless network to broadband connection) are still challenging. In the next a few years, we will observe active research efforts in multimedia content storage, content- based indexing and query, distributed content delivery, content adaptation and personalization. The multimedia program of WOCC 2007 will feature four excellent sessions that focus on P2P Technologies, Multimedia Content Search, Multimedia Content Analysis and Delivery, and Multimedia Applications. All invited speakers are experts from prestigious universities and industrial laboratories. Their talks will cover different aspects of multimedia technologies, applications, and services. The audience can learn the real world multimedia systems, cutting edge research, and the new trend in first hand. It is also a great opportunity to exchange ideas and create network with the folks in the multimedia community. Unleashing the core value of convergence requires innovation in network planning methods, scalable architectures, new optimization algorithms, and understanding the tradeoffs between difference technology choices and migration paths. Network Solution program provides the platform to discuss the methodologies and challenges of providing network solutions to deliver on the promise of convergence and NGN. The session topics cover the areas such as Migration to NGN and Mobile Broadband, New Services and Challenges in a Converged Network, Network Reliability, Network Planning/Design Methods and tools, as well as Emerging and Innovative Technologies.
Qi Bi Conference Organizer
- 3 - Conference Co-Sponsors
Chinese American Academic and Professional Society (CAAPS) Chinese Association for Science and Technology - USA (CAST-USA) Chinese Institute of Engineers - USA (CIE-USA) IEEE Northern Jersey Section Monte Jade Science and Technology Association (MJSTA) Photonics Society of Chinese Americans (PSC)
- 4 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Conference Program PROGRAM AT A GLANCE
Friday, April 27, 2007
08:00–17:00 Registration 09:00–09:10 Opening Remarks: Dr. Donald H. Sebastian, Senior VP for Research & Development, NJIT Keynote Speakers: Sandip Mukerjee, VP, Alcatel-Lucent “The Future of Wireless Communications” 09:10–10:30 Ed Tiedemann, Senior VP, Qualcomm “Wireless Communications: Perspectives on the State of the Technology and Where it Is Going” 10:30–10:40 Break Plenary Session Dave Wang, President, WANDL “IP/MPLS Network Planning, Design, Simulation, Audit, and Management” 10:40–12:10 P1 (Chair: Yeheskel Bar-Ness, NJIT) King L. Tai, Bell Labs Fellow & Chair of SyChip “Opportunities and Challenges for Multimedia Communication” Ken Kay, Chairman, Jumpstart NJ Angel Network “Finding Startup Capital”
12:10–13:40 Lunch Exhibition Next Generation Wireless Wireless Fundamental New Services and Challenges P2P Technology and Optical Network Architecture, NS1 WC1 Communications I WC2 Research in a Converged Network MM1 Its Applications OC1 Design, and Planning Poster 13:40–15:20 Chair: Qinqing Zhang Chair: Jianghong Luo Chair: Carlos Urrutia-Valdes Chairs: Yang Guo, Thomson Chair: Angela Chiu Session Alcatel-Lucent Alcatel-Lucent Alcatel-Lucent Yong Liu, Polytechnic Univ AT&T 15:20–15:40 Break Network Migration to NGN and Multimedia Optical Communication WC3 Panel Session NS2 NS3 MM2 OC2 Reliability Mobile Broadband Applications Technologies 15:40–17:20 Mobile Applications Chair: TC Chiang Chair: Mohcene Mezhoudi Chair: Amit Mukhopadhyay Chair: Zhen Wen Chair: Xiang Liu - 5 - - 5 TC Consulting Group Alcatel-Lucent Alcatel-Lucent IBM Alcatel-Lucent
Saturday, April 28, 2007
08:00–17:00 Registration Keynote Speakers: James Wei, Former Dean, Princeton University “How To Be Successful In America” 09:00–10:30 Sudhir R. Ahuja, VP, Bell Labs, Alcatel-Lucent “Multimedia Applications for a Converged World” 10:30–10:40 Break Plenary Session Aditya Gupta, VP, Anadigics “Trends in Manufacturing Technology for Handset Power Amplifiers” P2 10:40–12:10 (Chair: Qi Bi, Alcatel-Lucent) Anthony Pergola, Lowenstein Sandler PC “Going Out on Your Own” Wei Su, Senior Research Scientist, US Army “Adaptive Demodulation Techniques for Next Generation Software Defined Radios”
12:10–13:40 Lunch Exhibition Wireless IC and Sensor and ad-hoc Network planning, design Multimedia Indexing Advanced Optoelectronic WC4 SoC Design WC5 Networks NS4 methods and tools MM3 and Analysis OC3 Components Poster 13:40–15:20 Chair: Wei Luo Chair:Guiling (Grace) Wang Chair: Ben Tang, Chair: Lexing Xie Chair: Jian Jim Wang Session Broadcom NJIT Alcatel-Lucent IBM NanoOpto Corporation 15:20–15:40 Break Next Generation Wireless Mobile Networking Emerging and Innovative Multimedia Content Optical Communication OC4 WC6 Communications II WC7 and Security NS5 Technologies MM4 Analysis and Delivery Components and Subsystems 15:40–17:20 Chair: Gang Li Chair: Guangying Li Chair: Dong Sun Chair: Rong Duan Chair: Deyu Zhou Alcatel-Lucent Alcatel-Lucent Alcatel-Lucent AT&T Opnext
WC – Wireless & Mobile Communications NS – Network Solutions MM – Intelligent Multimedia OC – Optical Communications
The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Parallel Session 1 of 4 WOCC Technical Sessions – Friday, April 27, 2007, 13:40 – 15:20
Next Generation Wireless New Services and Optical Network P2P Technology WC1 Wireless WC2 Fundamental NS1 Challenges in a MM1 OC1 Architecture, and Its Applications Communications I Researches Converged Network Design, and Planning Chair: Qinqing Zhang Chair: Jianghong Luo Chair: Carlos Urrutia-Valdes Chairs: Yang Guo, Thomson Chair: Angela Chiu Alcatel-Lucent Alcatel-Lucent Alcatel-Lucent Yong Liu, Polytechnic Univ. AT&T Road to High Speed WLAN Recent Advances on Constant Convergence, IMS and Beyond Content Security in P2P IP over Optical Cross-Connect Xiaowen Wang and Varying Power Orthogonal Carlos Urrutia-Valdes Networks Architectures Agere Spreading Codes in Radio Alcatel-Lucent Heather Yu Guangzhi Li Communications Princeton Fuel Research AT&T Labs - Research WiMAX : The Path to the Mobile Redefining How People Ali Akansu Internet Communicate: An Overview of Efficient Substream Encoding Design and Planning Tool for NJIT Shupeng Li Tele-Presence and Transmission for P2P Video Optical Networks Alcatel-Lucent Interference Suppression Franck Noel on Demand Yunfeng Shen - 6 - - 6 Techniques for Multiuser MIMO Cisco Zhengye Liu CIENA Corporation Introduction to the New Systems Polytechnic University Generation WiFi Technology Operational Challenges of A Systematic Approach of Xiaodong Wang Lushen Ji Deploying Converged Services Peer-to-Peer Video Streaming: Incremental Design for Optical Columbia University AT&T Labs - Research over IP Success and Limits Network Adaptive Transmission with Romel Khan Yong Liu Dah-Min Hwang UMTS Long Term Evolution Variable-Rate Turbo Bit- IDT Corporation Polytechnic University AT&T Labs Fang-Chen Cheng Interleaved Coded Modulation Song Lei Challenges and Solutions in QoS aware P2P Video-on- Optimal Provisioning of Elastic Jianghong Luo Alcatel-Lucent Applying Ad hoc and Sensor Demand Service Service Availability Alcatel-Lucent Networking for Public Safety Yang Guo Dahai Xu Baseband Algorithms for UMTS Cooperative Source and Channel Applications Thomson Princeton University Long Term Evolution Coding For Wireless Multimedia Liang Cheng Lei Song Transmission Lehigh University Fang-Chen Cheng Ozgu Alay Alcatel-Lucent Polytechnic University
Mapping Link SNRs of Real- World Wireless Networks onto an Indoor Testbed Jing Lei Rutgers University
The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Parallel Session 2 of 4 WOCC Technical Sessions – Friday, April 27, 2007, 15:40 – 17:20
Network Migration to NGN Multimedia Optical Communication WC3 Panel Session NS2 NS3 MM2 OC2 Mobile Applications Reliability and Mobile Broadband Applications Technologies Chair: TC Chiang Chair: Mohcene Mezhoudi, Chair: Amit Mukhopadhyay Chair: Zhen Wen Chair: Xiang Liu TC Consulting Group Alcatel-Lucent Alcatel-Lucent IBM Alcatel-Lucent Converged Networks, Location Metrics for Network Resilience Wireless - Wireline Convergence Context-aware User Interfaces Technologies, Economics, and Based Services, and Mobile and Robustness Tod Sizer for Information Seeking Deployment of Optical Access Applications Michael Torteralla Alcatel-Lucent Zhen Wen Networks TC Chiang Rutgers University IBM Kevin W. Lu Mobile WiMax in Next TC Consulting Group Telcordia Technologies Probabilistic Solution Discovery Generation Networks Video Coding Using 3-D Dual- How to Deploy Location-based for Network Reliability Zulfiquar Sayeed Tree Wavelet Transform Optical Technologies for High Services Now and in the Future Optimization Alcatel-Lucent Beibei Wang Capacity Fiber Transmission Greg Burdett Jose Ramirez-Marquez Polytechnic University Xiang Liu - 7 - - 7 On TCP-Jersey Director, Andrew Corp. Stevens Inst. of Technology Bells Labs, Alcatel-Lucent Nirwan Ansari Berkeley-DB for Text/Multimedia Location-based (Push) Services – Developing Quantitative NJIT Retrieval Optical Power Transients and Its Are we there yet? Reliability Roadmap to Meet Chun Jin Control in a Photonic Network RF Radiation - Environmental Vishy Poosala Market Expectation Carnegie Mellon University Xiang Zhou Effects Chief Technologiest Xuemei Zhang AT&T Labs - Research Krishnamurthy Raghunandan Providing Intelligent Bell Labs, Alcatel-Lucent Alcatel-Lucent New York City Transit Conversation Notation Services Transient Control in Automotive Networking and Convergent Communications for in Enterprises Dynamically Reconfigured Applications - Opportunities and the Olympics Network Reliability Xiaotao Wu Networks with Cascaded Erbium Challenges Challenges Avaya Doped Fiber Amplifiers Wai Chen Spilio Makris Lei Zong ViCo: A Large-Scale On-line Telcordia Telcordia NEC Laboratories America Video Correlation System
Mobile Phone Platforms and Xiaohui Gu Service Enablers IBM John N. Wong Huawei Technologies
The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Parallel Session 3 of 4 WOCC Technical Sessions – Saturday, April 28, 2007, 13:40 – 15:20
Network planning, Advanced Wireless IC Sensor and ad-hoc Multimedia Indexing WC4 WC5 NS4 design methods MM3 OC3 Optoelectronic and SoC Design Networks and Analysis and tools Components Chair: Wei Luo Chair: Guiling (Grace) Wang Chair: Ben Tang, Chair: Lexing Xie Chair: Jian Jim Wang Broadcom NJIT Alcatel-Lucent IBM NanoOpto Corporation Advanced Receiver Structures for Achieving Confidentiality in Large Network Design Dynamic Multimodal Fusion for Observations of Nonlinearities OFDM-MIMO Detection Distributed Sensor Data Yung Yu Video Search and Non-classical Optics in Xiaofeng Qi Management AT&T Lexing Xie Photonic Crystals Broadcom Wensheng Zhang IBM Chee Wei Wong Cross-Technology Planning Iowa State University Columbia University HW and SW Co-verification of Platform for Wireless Carriers Toward a Better Mobile Search HSUPA for W-CDMA Channel Location-Based Security Design Weiping Wang Experience Recent Research Activities on Processor with Seamless PSP for Wireless Sensor Networks VPI System Ning Hu Specialty Fibers - 8 - - 8 Zheng Li Yanchao Zhang Google Ming-Jun Li A Management Strategy for Alcatel-Lucent NJIT Corning Inc. MPLS-TE Networks Automatic Recognition of Audio- 3G Soft Modem Design Fault Tolerant Sensor Networks Tony Lin Visual Speech: Recent Progress Nanoimprint and Holographic Ming-Jye Sheng Against Random Node Failures WANDL and Challenges Lithographies for Large-area Sysair Yanyong Zhang Stephen Chu Nano- optical and Biosensing Wireless Backhaul Transport Rutgers University IBM Applications SoC Design and Test Cost Reduction Strategies Jian Jim Wang Methodologies for Wireless Hybrid Networks: Advancing the Vijaya Poudyal Ferret: A Toolkit for Content- NanoOpto Corp. Communications Baseband Theory and Design of Wireless Alcatel-Lucent Based Similarity Search of Processors Networks Feature-Rich Data Broadband Quantum-Dash Henry Ye Alex Haimovich Qin Lv Laser: A New Class of Alcatel-Lucent NJIT Princeton University SemiconductorLaser Boon S. Ooi Transmitter Amplifiers for Auction-based Spectrum Sharing Lehigh University Impulse-based UWB System for Cognitive Radio Networks Laura (Renfeng) Jin Jianwei Huang Optical Seismic Sensor Array Lehigh University Princeton University Based on Fiber-Bragg-Grating Sensors Yan Zhang Hong-Liang Cui Stevens Inst. of Technology
The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Parallel Session 4 of 4 WOCC Technical Sessions – Saturday, April 28, 2007, 15:40 – 17:20
Next Generation Emerging and Multimedia Content Optical Communication Mobile Networking WC6 Wireless WC7 NS5 Innovative MM4 Analysis OC4 Components and and Security Communications II Technologies and Delivery Subsystems Chair: Gang Li Chair: Guangying Li Chair: Dong Sun Chair: Rong Duan Chair: Deyu Zhou Alcatel-Lucent Alcatel-Lucent Alcatel-Lucent AT&T Opnext Behind Mobile WiMAX Status of IMS-Based Next Convergence of Policy based Semi-Supervised Learning in High Bit Rate Optical Data Bus Technology Generation Networks for Fixed Resource Management Image Classification Technologies for Advanced Chenxi Zhu Mobile Convergence Framework in Next Generation Rong Duan Wireless Handheld Devices Fujitsu Lab Joe Lin Networks AT&T Louay Eldada Telcordia Dong Sun DuPont Photonics Tech. Overview of 4G Ultra Mobile Robust Adjusted Likelihood Alcatel-Lucent Broadband (UMB) Air Interface Attack Detection in Wireless Function in Classification Transitions from R&D to Yifei Yuan Localization Enhancing the Internet Hong Man Product Realization: - 9 - - 9 Alcatel-Lucent Yingying(Jennifer) Chen Survivability Using IP Fast Steven Inst. of Technology Opportunities and Challenges Alcatel-Lucent Rerouting for Optical Component Overview of Ultra Mobile IGP Weight Settings in Kang Xi Industries Broadband Air Interface Upper Mobile Digital Forensics Multimedia IP Networks Polytechnic University Deyu Zhou Layers Standard Yun-Qing Shi Dongmei Wang Opnext, Inc Jialin Zou NJIT Ferry-Based Intrusion Detection AT&T Alcatel-Lucent and Mitigation Schemes for Nonlinear Silicon Photonics and Network Mobility for IPv4 WebTalk: Towards Sparsely Connected Adhoc Its Application in On-chip Technical Overview of 3GPP Private Domain Networks Automatically Building Networks Optical Interconnection Long Term Evolution (LTE) and Harish Viswanathan Interactive Systems Through Mooi Choo Chuah Networks 3GPP2 Ultra Mobile Broadband Alcatel-Lucent Mining Websites Lehigh University Xiaogang Chen (UMB) Junlan Feng Wireless Security Threats and Columbia University Hyung Myung A New Radio Channel Allocation AT&T Countermeasures Qualcomm Strategy for APs of WLANs With Radio-Frequency Characteristics Steve Wang Power Control of Ultraviolet Optical Links Alcatel-Lucent Ming Yu Jie Deng
Florida State University Lehigh University
The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Sessions – Friday April 27 and Saturday April 28, 13:40 – 15:20
1. Hasan Mahmood and Cristina Comaniciu Stevens Institute of Technology A Cross-Layer Game Theoretic Solution for Interference Mitigation in Wireless Ad Hoc Networks
2. Nie Nie and Cristina Comaniciu Stevens Institute of Technology Prathima Agrawal Auburn University A Game Theoretic Approach to Energy Efficiency in Cognitive Networks
3. Si Yin and Nirwan Ansari New Jersey Institute of Technology A Novel Approach for Extending Storage Area Network (SAN) over Optical Access Network
4. Eric Bi and Justin Bi Morristown High School, Morris County, NJ Cell Phone Design for the Youth Generation
5. Pan Liu Broadcom Yeheskel Bar-Ness New Jersey Institute of Technology Comparison of Phase Noise Effect in OFDM and Single-Carrier Frequency Domain Equalization (SC-FDE) Systems
6. Eric Cheng Chen, Chee-Loon Tan, Lehigh University Yang Wang, Boon S. Ooi, and James C. M. Hwang Linewidth Enhancement Factor of InAs/InAlGaAs Quantum-dash-in-well Laser
7. Di Zheng and Yu-Dong Yao Stevens Institute of Technology MAC Protocols for Wireless Sensor Networks
8. Zhuo Yang, Didem Kivanc-Tureli, and Uf Tureli Stevens Institute of Technology Multiple Antennas Receiver Initiated Busy Tone Medium Access (MARI-BTMA) Protocol in Decentralized Wireless Network
9. Seon Woo Lee and Haim Grebel New Jersey Institute of Technology Properties of Carbon Nanotube/Conducting Polymer Addressable Interconnects
10. Xiaoling Chen and Ufuk Tureli Stevens Institute of Technology Source Localization Based on Energy Measurement with Randomly Distributed Sensor Array
11. Yun-Hsiang Ding and Vitchanetra Hongpinyo Lehigh University
Semiconductor Photonic Integration Using Cu-doped SiO2B B Induced Intermixing
12. Bo Niu, Osvaldo Simeone, and Alexander M. Haimovich New Jersey Institute of Technology Oren Somekh Princeton University Throughput of Broadcast Channels with Outdated Limited Feedback and User Selection
- 10 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Keynote Speakers Friday, April 27, 09:10 – 10:30 AM The Future of Wireless Communications ABSTRACT The wireless industry is on the verge of a major transformation. End user needs are becoming more sophistocated, necessitating complex networks that bring high bandwidth, high speed, Quality of Service, and security to support innovative services. These complex services are provided by networks that become simplified through several technological breakthroughs. Average peak data rates have been doubling every two years. And today we are on the leading edge of another significant jump in data rates. New technologies, such as HSPA, CDMA Rev A, and WiMAX will achieve 100Mbps+ throughput by 2010. These improvements in
wireless technology performance provide significant increases in speed and Sandip Mukerjee efficiency to enable data intensive and content rich services, while being hosted in a cost efficient network. Lower cost, high performance networks have profound VP effects not only for the sophistocated user, but also to open up service to millions of Alcatel-Lucent unserved communities. Technological breakthroughs and cost efficiencies are transforming the way the world communicates by delivering wireless access 67 Whippany Road globally. Room 3D-210 Whippany, NJ 07981 BIOGRAPHY [email protected] Dr. Sandip Mukerjee is Vice President of Strategy and Chief Marketing Officer for the Wireless Business Group at Alcatel-Lucent. His responsibilities include identifying and developing strategic growth opportunities; ensuring cross-division portfolio and technology alignment; strategic marketing and communications. He also serves as the General Manager of Mobilitec, Inc. Mobilitec, an industry leader in Mobile Content Management and Delivery, was acquired by Alcatel-Lucent in November 2006. Sandip serves on several industry boards, including the Cellular & Telecommunication Industries (CTIA) Wireless Internet Caucus. Sandip began his career at AT&T Bell Laboratories in 1991. Between 1991 and 1996, he held a wide range of research, development and management positions related to the delivery of complex software systems in the areas of call processing, speech recognition technologies and enhanced wireless applications. He was appointed a Distinguished Member of Technical Staff in 1995. Sandip joined the Lucent Technologies’ Mobility Solutions Group in 1996 as a Product Manager. Between 1996 and 2000, Sandip held a number of positions spanning product management, business strategy and marketing. During this time he had responsibility for Lucent’s Global Adaptive Development Program and played a pivotal role in helping grow Lucent’s businesses in China, Korea, Brazil and India markets. Between 2000 and 2004 Sandip led the Mobility Offer Management Team at Lucent Technologies, where he had responsibility for defining strategies and developing products & offers that would help mobile operators and service providers succeed in future markets. His team was responsible for creating new markets for wireless data – including the enterprise market strategy for Mobile High Speed Data; through initiatives such as the 3G Enterprise Alliance (3GeA), Market Advantage Program (formerly the Customer’s Customer Program) and the Global Mobility Insights and Innovations (GMII), a $10M business research program with Boston University, London Business School and INSEAD, to explore new mobile business models.. Most recently, Sandip held the position of Vice President of Applications Solutions Strategy, Marketing & Business Development at Lucent Technologies. There, his team orchestrated Lucent’s entry into the Content Management/Delivery and JAVA client businesses via inorganic and organic growth/investments. Sandip has a Ph.D. in Electrical Engineering from the New Jersey Institute of Technology and holds several U. S. and International patents.
- 11 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Keynote Speaker Friday, April 27, 09:10 – 10:30 AM Wireless Communications: Perspectives on the State of the Technology and Where it Is Going ABSTRACT Commercial cellular phone service began in the early 1980’s. Today, there are over 2.3 billion subscribers—approximately one out of three people in the world use a cell phone for voice communications. Cellular voice communications is circuit switched, mostly using the GSM/WCDMA and CDMA IS-95/cdma2000 air interfaces. Technology is coming into place to provide a major change in voice Ed Tiedemann services by using high bandwidth speech codecs, IMS, and VoIP. Cellular wireless data services began about 15 years ago; however, the growth in use of wireless data Senior VP has been relatively slow. However, the technology has substantially improved and Qualcomm Incorporated the deployments expanded so that downlink peak data rates exceeding 2 Mbps are now available throughout most of the United States and in many other countries. 5775 Morehouse Road Cellular data services have been integrated into laptop computers and, as module San Diego, CA 92121 costs decrease, will become integrated into other devices. Broadcast technologies, which will provide TV and clip-casting services, are being deployed as adjuncts to [email protected] cellular systems. This keynote speech will give a short overview of the history of cellular communications systems and examine where the technology is heading.
BIOGRAPHY Dr. Edward G. Tiedemann, Jr. is a Senior Vice President of Engineering of QUALCOMM Incorporated. He leads QUALCOMM’s worldwide standardization activities. Dr. Tiedemann was instrumental in the design and development of the TIA/EIA/IS-95 CDMA system, also called cdmaOne™. He led QUALCOMM’s and much of the industry’s efforts in the design and development of the third-generation cdma2000® system. Recently he has been focusing on the evolution of 3G systems, the next generation of WLAN, and the convergence of WLAN and WWAN. He is particularly interested in the implications of these changes for the wireless industry. Dr. Tiedemann chairs Working Group 3 of 3GPP2 TSG-C, which is responsible for the cdma2000® physical layer. Dr. Tiedemann has been particularly interested in the technical issues related to handoff, power and rate control, scheduling, control of random access channels, advanced antennas techniques, and the tracking and paging of mobile users. Dr. Tiedemann holds over 100 US patents and has participated in over 40 papers, conference lectures, and industry panels. Prior to becoming involved with terrestrial wireless communications, Dr. Tiedemann was involved with numerous commercial and military satellite programs. From 1977 to 1988, Dr. Tiedemann was at MIT Lincoln Laboratory. Dr. Tiedemann holds the Ph.D. degree from MIT where he worked in the areas of queueing theory and communications networks. He holds the Master of Science degree from Purdue University where he worked on bandwidth efficient modulation. He also holds the Bachelor of Science degree from Virginia Polytechnic Institute and State University (Va Tech). Dr. Tiedemann is past chairman on the advisory board of the College of Engineering at Virginia Polytechnic Institute and State University (Va Tech). He has received one of the Outstanding Electrical and Computer Engineer Awards that have been given by Purdue University. He is on the Board of Directors of the Open Mobile Alliance.
- 12 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Keynote Speaker Saturday, April 28, 09:00 – 10:30 AM How To Be Successful In America
BIOGRAPHY Dr. Wei served as dean of Princeton’s School of Engineering and Applied Science from 1991 to 2002, after serving at MIT as the Department Head of Chemical Engineering and Warren K. Lewis Professor from 1977 to 1991. Dr. Wei does research in catalysis and zeolites as it relates to environmental problems. Dr. Wei has published more than 100 articles, and has been editor of several books and journals. He is currently editor in chief of Advances in Chemical Engineering, a journal devoted to
informing a general audience of major developments taking place in the field of chemical engineering. As an expert on the environmental impact of the chemical industry, he has James Wei participated in many governmental panels, such as the National Research Council. Dr. Wei has received numerous awards, and has been elected into the ranks of the National Academy Former Dean of Engineering, American Academy of Arts and Sciences, and Academia Sinica. School of Engineering and Applied Science Princeton University
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Keynote Speaker Saturday, April 28, 09:00 – 10:30 AM Multimedia Applications for a Converged World ABSTRACT We live in an Always-On world. We are surrounded by many networks and many devices. Users are confronted with many options to accomplish the same communication. They need ways to think of applications across multiple networks, devices and media. We describe new network enablers and clients necessary to support new converged applications. We present some of the new exciting applications that exploit convergence across wireless, wireline, cable, and broadcast networks.
Sudhir R. Ahuja BIOGRAPHY Dr. Ahuja is currently Vice President of the Converged Networks and Services Research VP Laboratory and is leading and managing research in converged networks, services, speech Alcatel-Lucent recognition, text-to-speech coding techniques, video based communication and novel multimedia applications. Dr. Ahuja is the research champion for IMS and Carrier Grade VoIP. He has given leading seminars and presentations on Voice on IP and Next generation 600-700 Mountain Avenue networks based on IMS in New Zealand, France, Australia, Korea, Japan and USA. Room 2D-540 Dr. Ahuja’s early work involved associative memories, pipelining and parallel processing. Murray Hill, NJ 07974 He has been involved in the design and implementation of multiprocessor systems, [email protected] multimedia conferencing systems, packet telephony, and friendly user interface design. He designed and developed the first large scale multiprocessor, S/Net, at Bell Labs that became the 3B-4000 product from AT&T. He pioneered research in multimedia systems and championed the first Internet based video conferencing system called Rapport. This led to many video/multimedia conferencing systems productized by AT&T such as the AT&T Worldworx. Dr. Ahuja’s current interests are in the field of communication applications over the Internet and use of multimedia technologies such as speech, audio and video for natural multimedia communication. For his pioneering work in Multimedia communications, Dr. Ahuja was appointed Bell Labs Fellow in 1997. Dr. Ahuja has been actively involved in productization or commercialization on new technologies. In the past seven years, he helped launch nine ventures based on new technologies from his center in Bell Labs. These include Veridicom, a venture on finger print recognition using a special chip; Digital Radio, a venture on digital compression and transmission technology for satellite based radio; Face2Face, a video/animation company, Fullview, a 360 degrees camera technology that allowed very high resolution and software panning. In one particular venture, Geovideo, Dr. Ahuja helped found the venture but also served as the Chief Scientist for the first year. Sudhir R. Ahuja obtained his M.S. and Ph.D. degrees in electrical engineering from Rice University in 1974 and 1977, respectively. His undergraduate education was at the Indian Institute of Technology, Bombay, where he received the President’s Gold Medal for outstanding academic performance in 1972. He has been with AT&T Bell Laboratories, Holmdel, NJ, from 1977 and continues to be with Bell Labs in Lucent Technologies in Murray Hill. Dr. Ahuja is a member of IEEE and ACM and Sigma Xi. He has served as Chairman for the Multimedia Services and Terminals Committee of the IEEE Society, Area Editor for the IEEE Communications Committee and Editor for Transactions on Networking, a joint publication of IEEE and ACM.
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P1 – Plenary Session Friday, April 27, 10:40 – 12:10 AM
Session Chair
Yeheskel Bar-Ness
Distinguished Professor Director, Center for Communication and Signal Processing Research New Jersey Institute of Technology Newark, NJ, 07102 [email protected]
BIOGRAPHY Dr. Yeheskel Bar-Ness is a Distinguished Professor and Foundation Chair of Communications and Signal Processing at the New Jersey Institute of Technology. He is also the Executive Director of the Center for Wireless Communications and Signal Processing Research at NJIT. Dr. Bar-Ness received the B.Sc. and M.Sc. degrees in electrical engineering from the Technion, Haifa, Israel in 1958 and 1963, respectively, and the Ph.D. from Brown University in 1969. He joined NJIT in 1985 after being at the University of Pennsylvania, Drexel University and AT&T Bell Labs. Between September 1993 and August 1994, he was on sabbatical with the Telecommunications and Traffic Control Systems Group, Faculty of Electrical Engineering, Delft University of Technology, Delft, The Netherlands. Between September 2000 and August 2001, he was on sabbatical at Stanford University, Stanford, California. He is an internationally known expert in communications and signal processing. He is a Fellow of IEEE and a recipient of numerous professional awards including the recently received IEEE Communications Society Publications Exemplary Service Award. His award citation read: "For outstanding, sustained, and visionary contributions to the Communications Society publication, IEEE Transactions on Communications, plus founder and first Editor- in-Chief of IEEE Communications Letters." This award was presented that the IEEE GLOBECOM Conference on November 29, 2005. He was also honored in 2006 as “Inventor of the Year” by the NJ Inventor’s Hall of Fame for his work in electrical and computer engineering. He has published more than 200 papers and has a U.S. patent on smart antennas. He has been a principal investigator or co-principal investigator on a number of research grants or contracts supported by National Science Foundation, NJCST, US Army, US Air Force (Rome Lab), and Naval Oceanic Center, as well as industry grants from Interdigital and Samsung and others. His current research interests include smart antenna systems for 4th generation wireless data communications, phase noise mitigation, capacity optimization, OFDM and multi-carrier CDMA, packet data communications over coded CDMA and power adaptation strategies for DS/CDMA, and MC-CDMA. His professional activities include industrial and academic institutions in Israel and in the U.S. He is a recipient of the Kaplan Prize (1973), which is awarded annually by the government of Israel to the ten best technical contributors.
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P1 – Plenary Session Friday, April 27, 10:40 – 12:10 AM
IP/MPLS Network Planning, Design, Simulation, Audit, and Management
Dave Wang President WANDL, Inc. (Wide Area Network Design Lab)
88 Centennial Ave, Piscataway, NJ 08854 [email protected]
Abstract More and more carriers and service providers are shifting to an all IP/MPLS network. In this talk, we address some of the issues network planners and managers are facing: (a) Multi-vendor: Cisco, Juniper, Alcatel-Lucent, Huawei, Tellabs, etc. (b) Multi-layer: IP / MPLS / Optical (c) Multiple services: Voice, Video, Web, Wireless WANDL's IP/MPLSview has evolved into an all purpose FCAPS tools based on a very simple observation: Router devices are very intelligent, and you can get practically every piece of information from the network directly. Biography Dr. Dave Wang earned his B.S. in mathematics at National Taiwan University in 1969, and received his PhD in mathematics from Massachusetts Institute of Technology in 1973. From 1978 to 1986, Dr. Wang worked as a member of the technical staff at AT&T Bell Laboratories and Bellcore. Since joining WANDL, Inc. (Wide Area Network Design Laboratory) as a charter member in 1986, Dr. Wang has been a major influence to the design and development of NPAT (Network Planning and Analysis Tools) and IP/MPLSView. Towards this end, Dr. Wang has considerable expertise in the design of ATM/Frame Relay, Voice/TDM, Optical, and IP/MPLS-based networks. He has worked closely with hardware vendors on routing and CAC details, and with carriers, ISPs, and enterprise customers on countless network designs and RFPs, advising them in the planning and analysis of WANs of all sizes, and enhancing the NPAT tool to meet customers' needs.
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P1 – Plenary Session Friday, April 27, 10:40 – 12:10 AM
Opportunities and Challenges for Multimedia Communication
King L. Tai Chairman of Technical Advisory Board SyChip Inc. A subsidiary of Murata
600 Mountain Ave, RM 1C-339, Murray Hill, NJ 07974 [email protected]
Abstract Multimedia communication and entertainment in consumer market could be the stimulating force for revitalization of telecommunication and the new growth areas of wireless semiconductor industry. The status, road map and challenges for this new area will be discussed. 1. The emerging multimedia services require two orders of magnitudes higher band width than traditional voice services, the multimedia services will easily fill up the under utilized network capacity. The existing optical fiber network, the twisted pair networks with ADSL, VDSL technologies, and the cable TV network can support multimedia; even HDTV signal. 2. Mobile wireless access to the network is a key direction. • New multi media enabled cell phones are already available. • Public WiFi access points that integrated into IP network will allow multimedia enabled WiFi hand held devices to be connected to IP network. It may offer lower service cost to consumers. The merge of cell phone and 802.11x will be the trend for the future mobile technology. • WiFi wireless taps added in cable network can be served as the public WiFi access points. • ADSL enabled public phones in twisted pair net work can also serve as the public access point. The key elements of semiconductor technologies for low cost multi media hand held terminals: 1. Integration • High cost of discrete passive components leads to the development of SOC (System On Chip) technology. However, the integration of the RF active circuits & RF passive circuits, the integration of memory & logic in SOC will increase the cost, degrade the performance and delay the time to market. The newly developed CSM (Chip Scale Module, a new System-in package) technology will be new attractive integration platform. • The new SIP technology can further integrate the high gain directional antenna in the Si substrate. It will make 60 GHz CMOS IC possible. The low cost CMOS based Gb data rate radio will be possible. • The integration of high efficiency InGaP PA circuit with CMOS will be attractive. CSM can also provide the integration platform • For high performance video requires high band width interface between memory and video processor. New SIP technology for high band width logic/memory integration will address the need for high performance video processing and as well as ATM switching in the network. • New SIP design infrastructure • New SIP manufacture infrastructure 2. Highly accurate simulation tool for RF passive circuit design is also a key area.
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3. The foundry services for manufacturing Integrated Passive circuits solder bumping and flip-chip assembly are available in Singapore, Taiwan and China. Biography Dr. King L. Tai is a co-founder of SyChip. Prior to co-founding SyChip, Dr. Tai managed the Micro System Integration Group in the Wireless Research division of Bell Labs. He developed the flip-chip technology that was utilized in 30 million devices resulting in more than $20 million in cost savings. Dr. Tai is a Bell Labs Fellow and holds 50 patents (issued and pending). He is the pioneer of developing the technology of integrated passive circuits on proprietary Si substrate as the platform integrating RF active ICs and digital ICs with high Q passive circuits on Si substrate by flip-chip. It forms a completed RF system module in a chip size form factor. This chip scale system module called CSM (Chip Scale Module). It can provide more cost effective and higher performance than wireless SOC. He also demonstrated chip-on-chip memory/logic integration technology providing cost effective high band width memory/logic integration. Dr. Tai holds a Ph.D. in Material Science from Stevens Institute of Technology. Prior to come to US in 1963, He attended Shanghai Jiao Tong University metallurgy department from 1958 to 1962. Dr. Tai is now focused on working with international industry and academic leaders to build open infrastructure for the design and manufacture of CSM technology.
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P1 – Plenary Session Friday, April 27, 10:40 – 12:10 AM
Finding Startup Capital
Ken Kay Chairman Jumpstart NJ Angel Network
1001 Briggs Road, Suite 280, Mt. Laurel, NJ 08054 [email protected]
Abstract Finding startup capital is always a challenge. What does it take to get investors interested in your idea? Where do you find advisors to provide guidance? Ken will present his views on the challenges of starting a company from the perspective of an entrepreneur as well as an angel investor. Biography Ken is the chairman and a founding member of Jumpstart NJ Angel Network. Under Ken’s direction, Jumpstart has become the leading angel network in New Jersey. Ken is investor and board member at GlobalSubmit: an early-stage software company. GlobalSubmit has partnered with the US Food and Drug Administration to develop software solutions that streamline the review of electronic submissions. All FDA reviewers use GlobalSubmit software to review all electronic submissions. Ken is a member of the board of trustees of Einstein Alley: an economic development initiative for central New Jersey. Previously, Ken was the founder and CEO of Ebudgets: the first company to offer browser-based budgeting and financial reporting software. Without external capital, Ebudgets maintained profitability and exponential growth for ten straight years. In 2001, Microsoft Great Plains acquired Ebudgets. Ken holds an MBA from the University of Chicago with concentrations in Finance, International Business and Statistics. Ken also holds a Bachelor of Economics from University of Chicago.
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P2 – Plenary Session Saturday, April 28, 10:40 – 12:10 AM
Session Chair
Qi Bi
Bell Laboratories Fellow Alcatel-Lucent 67 Whippany Road, Whippany, NJ, 07981 [email protected]
BIOGRAPHY Dr. Bi has his M.S. from Shanghai Jiao Tong University and Ph.D. from Pennsylvania State University. He joined Bell Laboratories in 1988. In 1995, he became a Distinguished Member of Technical Staff and two years later, he was promoted to Technical Manager. Dr. Bi is a recognized expert in wireless communications. He received Awards of Excellence from the Advanced Technology Lab of AT&T in 1996 and 1997, and received Bell Labs President’s Gold Awards in 2000 and 2002. Under his leadership, his team was recognized for its outstanding contributions in innovations and was awarded the Bell Labs Innovation Team Award in 2003. In 2004, he received the Speaker of the Year Award from the IEEE New Jersey Coast Section. Based on his pioneering contributions in wireless communications, he broke new ground in 2003 becoming the first Chinese from mainland China since 1949 to receive the prestigious Bell Laboratories Fellow Award. In 2004, he was also recognized by the Chinese Institute of Engineers and was awarded the Asian American Engineer of the Year Award during Engineers Week in the United States. Dr. Bi has published extensively in many technical journals and conferences and has served as editors in many technical publications. He was often invited as a keynote speaker in many international conferences and has filed more than 50 US patents. He was also the New York chapter president of the Alumni Association of the Chiao Tung University from 2002 to 2006. He has been listed in Who’s Who since 2003.
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P2 – Plenary Session Saturday, April 28, 10:40 – 12:10 AM
Trends in Manufacturing Technology for Handset Power Amplifiers
Aditya Gupta Vice President ANADIGICS, Inc.
141 Mt. Bethel Road, Warren, NJ 07059 [email protected]
Abstract The cellular phone industry is about thirty years old with the very first service around 1977 in Nordic countries. In this relatively short period, handset sales have grown from zero to about one billion units in 2007 alone, making cell phones the highest volume consumer electronics product in history. Two trends have accompanied the growth in sales volume: (1) miniaturization and (2) increased functionality. Whereas the first generation cell phones needed a small suitcase to carry the battery pack and the electronics, today’s phones easily fit in a shirt pocket and weigh less than 200gm. Phones have also evolved from voice only to voice and high speed data and now include other “non- traditional” features such as digital cameras, MP3 players etc. As the phones have become more capable, user expectations have grown even faster. Today, consumers would like to be able to use one handset for voice and data (emails, calendar, video etc.) wherever they happen to be in the world. This has led to the development of multi- band multi-mode phones capable of accommodating the different standards popular in different parts of the world. Of course, even with all this functionality, consumers expect the handset to be attractive, compact and reliable, with “reasonable” battery life, and at a low cost. Power amplifiers (PAs) are key components of cellular handsets and a key performance metric is their power added efficiency, i.e. how efficiently they convert dc energy stored in the battery to rf energy. This is important because PAs account for a significant drain on the battery and their efficiency directly affects talk time and the frequency with which the battery must be recharged. The first generation cell phones (in early 1980s) employed PAs manufactured in silicon bipolar transistors, the only viable option at the time. These were supplanted by Si LDMOS based PAs in late 1980s to early 1990s because the new technology offered better ruggedness and efficiency. By 1993, Gallium Arsenide (GaAs) based PAs started becoming available for cellular handsets and it soon became clear that it was easier to design higher performing and smaller PAs in GaAs than in silicon. However, manufacturing technology for GaAs was not as mature as for silicon ICs because until then GaAs was focused almost entirely on very low volume, highly custom military applications. Therefore, it took some time for GaAs to displace Si as the dominant technology for handset PAs. The market share of silicon handset PAs has shrunk from 100% in 1993, to under 5% today. Initially, GaAs PAs were designed using MESFETs, a relatively mature field-effect transistor technology. In 1995, PAs based on GaAs HBTs (Heterojunction Bipolar Transistors) were introduced. These transistors offer higher power density (i.e. smaller die size and lower cost) and higher manufacturing yields (i.e. lower cost). It took only six years (from 1995 to 2001) for HBT PAs to completely take over the GaAs handset PA market. In parallel with these developments, GaAs manufacturing technology matured significantly, moving from 75mm to 100mm and finally to 150mm substrates. The first 150mm HBT manufacturing facility came on line in Warren, NJ in 2000. The result of improvements in manufacturing technology and increased competition between various PA manufacturers has lead to a very significant drop in the price of these components. In 1993, the price of a simple single-band GaAs PA IC in a plastic package (with all matching performed externally) was ~$7.00 while in 2007, the price of a quad-band fully matched multi-chip module is only ~$1.20! With increasing complexity of cell phones, the need to minimize battery drain has become paramount. ANADIGICS has developed a GaAs BiFET process technology (InGaP-PlusTM), along the lines of Si BiCMOS, which has allowed great strides in tackling this problem. InGaP-PlusTM permits integration of InGaP HBTs and GaAs field effect transistors on the same die. The flexibility provided by the availability of both types of devices greatly
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increases design options and permits incorporation of methods to reduce current consumption. A successful example of this is ANADIGICS’ HELPTM (High Efficiency at Low Power) family of CDMA and WCDMA power amplifiers. These amplifiers have successfully reduced average current consumption by 75% over traditional GaAs HBT PAs. This process technology has been in high volume production since 2003 and has been used to manufacture tens of millions of units of cellular and WLAN power amplifiers. Biography Dr. Aditya Gupta is Vice President of Technology Development at ANADIGICS, Inc. Prior to joining ANADIGICS in 2000, he worked at Northrop Grumman, Westinghouse and Rockwell International in Gallium Arsenide process and device technologies aimed at the development of monolithic microwave integrated circuits for DoD applications. He has over 28 years experience in this field. Dr. Gupta earned his Ph.D. from Cornell University in 1978 in Electrophysics.
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P2 – Plenary Session Saturday, April 28, 10:40 – 12:10 AM
Going Out on Your Own – Commercializing Convergent Communications Technologies in a Start-up Environment
Anthony O. Pergola Vice Chair, Tech Group Lowenstein Sandler PC
65 Livingston Avenue, Roseland, NJ 07068 [email protected]
Abstract Anthony Pergola spends most of his professional life helping emerging technology companies and their investors complete venture capital and angel financing transactions, and in helping those companies effect M&A or IPO exits. Anthony has provided legal counsel to communications companies for more than 10 years, including M&A work for Lucent; venture capital, public offering and M&A work for ITXC; and venture capital financing work for Village Networks. Today Anthony will speak about the challenges and opportunities that entrepreneurs face when they go out on their own, and operate in the start-up environment -- venture capital, the capital markets, and M&A.
Biography Anthony O. Pergola is Vice Chair of Lowenstein Sandler's Tech Group. Mr. Pergola’s clients create, finance and bring to market new technologies in the communications, software, and electronics industries, among others. As an attorney, he assists emerging, growth and later-stage technology businesses, and the venture funds that finance them in venture capital investments. As those companies mature, he helps them to effect critical liquidity events -- whether through the sale of the company to a strategic or financial buyer or IPO -- as well as strategic alliances and joint ventures. Mr. Pergola also represents financial and strategic buyers in purchasing venture-backed technology businesses and has closed dozens of middle-market M&A transactions. Mr. Pergola has written and lectured extensively about the impact of the Sarbanes-Oxley Act, and other corporate and securities reforms, on technology businesses. Mr. Pergola is a founding board member and currently co-Chair of AngelVine (www.angelvinevc.com), a network of angel investors and more than 20 venture funds dedicated to assisting early-stage ventures in the Mid-Atlantic region. As shown by his work with AngelVine, and the New Jersey Technology Council, as well as by representing companies and angel investors in seed financing transactions, Mr. Pergola is committed to enhancing opportunities for the development of the region’s early stage technology businesses. In 2006, Chambers USA Guide recognized as an up and coming ranked lawyer in its New Jersey corporate/M&A section, noting his work in technology venture capital and for public companies. In 2005, NJBIZ magazine named Mr. Pergola one of New Jersey’s top forty business leaders under the age of 40.
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P2 – Plenary Session Saturday, April 28, 10:40 – 12:10 AM
Adaptive Demodulation Techniques for Next Generation Software Defined Radios
Wei Su Senior Research Scientist US Army Communication Electronics RD&E Center
AMSRD-CER-IW-IE Building 600, Fort Monmouth, NJ 07703 [email protected]
Abstract Adaptive demodulation method is a rapidly evolving subject in both military and commercial communications. In the last two decades, many automatic modulation classification algorithms have been developed using different statistical methods, and some commercial products have been built to meet various military demands. With the revolution of digitizing communications ever closer to the antenna, software-defined radios (SDRs) with programmable modulation schemes and transmission rates have become a practical wireless communication platform. Modulation classification techniques have attracted much attention recently from the commercial software-defined radio (SDR) applications in developing the next generation receivers with automatic modulation scheme recognition and selection. It has become a key research area in developing new algorithms with real-time adaptive demodulation capability. However, the technical challenges in military surveillance systems and commercial SDRs are quite different. We will give an overview of automatic modulation classification and discuss the challenges in migrating current modulation classification techniques into the next generation SDR.
Biography Dr. Su received the B.S degree in electrical engineering and the M.S degree in systems engineering from Shanghai Jiao Tong University, China, in 1983 and 1987, respectively. He received his Ph.D. degree in electrical engineering from The City University of New York, New York, in 1992. He is a senior research engineer in U.S. Army Communication Electronics Research Development and Engineering Center, at Fort Monmouth, New Jersey since 1998. From 1991 to 1997, he was a research scientist in US Army Research Laboratory, at Fort Monmouth, New Jersey. His research interests include communication intelligence, signal and image processing, and adaptive control. He has authored over 100 papers and patents. He served as US Army leaders at the international defense technology panels TTCP TP2 and TTCP AG5. Dr. Su has been a recipient of numerous prestigious awards for technical achievements including the 3rd highest honor in US Army – Superior Civilian Service Award and Medals, 2005 Army Research and Development Achievement Award, Army Material Command Top 10 Employee Nomination, 2002 Thomas Alva Edison Patent Award, 2004 AOC International Research and Development Award, and China National Significant Research Achievement Award. He has been listed in Who’s Who since 1996.
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Technical Sessions – Program Chairs
Program Chairs Wireless and Mobile Communications
Guangying Li Alcatel-Lucent 67 Whippany Road, Whippany, NJ 07981 [email protected]
BIOGRAPHY Dr. Li received the Ph.D. degree in electrical engineering from University of Pennsylvania, Philadelphia, in 1994, and the B.S. and M.S. degrees in Physics from Peking University, Beijing, China, in 1983 and 1986 respectively. He is currently a Technical Manager in Wireless Performance Department of Alcatel-Lucent in Whippany, New Jersey. His major responsibilities include RF performance analysis and optimization of CDMA 3G1x and 1xEVDO technologies.
Wei Luo Broadcom 100 Matawan Rd, Matawan, NJ 07747 [email protected]
BIOGRAPHY Wei Luo received the B.S. degree in Electronic Engineering from Tsinghua University, Beijing China in 1995, and M.S. and Ph.D. degrees in Electrical Engineering from University of Maryland, College Park in 1997 and 1999 respectively. Between 1999 and 2003, he was a Member of Technical Staff with Performance Analysis Department, Bell Labs, Lucent Technologies. At Lucent, he worked on wireless cellular system design, including system architecture, protocol and algorithm design, and 3GPP standard contributions. He is currently a principal system scientist with Broadcom Corporation Mobile Wireless Business Unit, Matawan, New Jersey, where he is the key architect and engineer designing and developing wireless cellular baseband system on chip used for multimode GSM/GPRS/EDGE, WCDMA and HSDPA handsets. He has published more than 20 technical papers in the prestigious international journals and conferences. He holds six U.S. and international patents with two additional pending. Dr. Luo is an adjunct professor at New Jersey Institute of Technology.
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Technical Sessions – Program Chairs Network Solutions
Ying (Emily) Hu Bell Laboratories, Alcatel-Lucent 101 Crawfords Corner Road, Holmdel, NJ 07733 [email protected]
BIOGRAPHY Dr. Ying Hu is a senior member of technical stuff in the Network Modeling and Optimization Group of Bell Labs at Holmdel, New Jersey. She received the Ph.D. degree in electrical engineering from Stevens Institute of Technology in Hoboken, New Jersey, and both M.S. and B.S. from Beijing Institute of Technology, China. Dr. Hu’s current work focuses on IP Multimedia Subsystem (IMS) network modeling/design, multi-service network modeling/design, techno-economic studies of NGN network architectures and technologies. In the past, she has worked in the areas such as IPTV transport network, intelligent optical networks, data/optical integration, next generation of SONET/SDH/WDM, mesh restoration and optical control plane. Dr. Hu has contributed about 30 technical papers in scientific journals and conferences. She has received numerous awards of excellence including central Bells Labs teamwork award, Lucent NSG president award, recognition from president North America Global Sales, IEEE recognition award and so on. From year 2003 to 2005, she served as the chapter chairman in IEEE NJ coast section. Currently, she serves as the program chair and conference coordinator for the Wireless and Optical Communications Conference. She is a senior member of IEEE.
Ben Tang Bell Laboratories, Alcatel-Lucent 101 Crawfords Corner Road, Holmdel, NJ 07733 [email protected] BIOGRAPHY Dr. Ben Tang is a distinguished member of technical staff in the Network Modeling and Optimization Group at Bell Laboratories, Holmdel, New Jersey. He joined AT&T Bell Labs in 1991 at Indian Hills, IL working on software development of ISDN trunk maintenance for 5ESS. He moved to Holmdel, NJ in 1992 and spent four years on the development of intelligent mathematical algorithms and object-oriented programming (C/C++) for an advanced decision support system built for airline companies. From 1996 on, he has been working on network planning, design and development of end-to-end network solutions. Currently, Dr. Tang’s work focuses on all aspects of data networking (IP/MPLS, Ethernet, NG BRAS, IPv6), including architecture and solution development, consulting, network design and optimization, evolution planning and economic analysis. He also works on end-to-end network modeling, design and evolution planning for IMS and NGN. In particular, he has been extensively involved in Bell Labs network architecture and modeling work for China and Asia Pacific. Dr. Tang has also worked on the development of IP/MPLS network design and optimization methods and tools to enhance network efficiency and reduce cost for service providers. These methods and tools are used to create professional service opportunities and support service delivery by the Alcatel-Lucent’s service organization. Dr. Tang has a B.S. degree from the National Taiwan University, M.S. from the University of Florida, and Ph.D. from Purdue University, all in electrical engineering. He was invited as a member of Telecommunication Advisory Board (TAB) for the Ministry of Transportation and Communications (MOTC), Republic of China, in 1999.
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Technical Sessions – Program Chairs Intelligent Multimedia
Zhu Liu AT&T Labs – Research 200 Laurel Avenue South, Middletown, NJ 07748 [email protected]
BIOGRAPHY Dr. Liu received the B.S. and M.S. degrees in electronic engineering from Tsinghua University, Beijing, China, in 1994 and 1996, respectively, and the Ph.D. degree in electrical engineering from Polytechnic University, Brooklyn, NY, in 2001. He joined AT&T Labs - Research, Middletown, NJ, in 2000, and is currently a Principle Member of Technical Staff in the Video and Multimedia Technologies and Services Research Department. His research interests include multimedia content processing, multimedia databases, video search, pattern recognition, machine learning, and natural language understanding. He holds four U.S. patents and has published about 40 papers in international conferences and journals. Dr. Liu is a senior member of IEEE, and a member of ACM and Tau Beta Pi. He and his colleagues won the best demonstration award in the Consumer Communication & Networking Conference 2007. Dr. Liu received the IP & Voice Services Research Excellence Award from AT&T in 2006, and he was on the National Academy of Engineering’s Symposium on Frontiers of Engineering in 2005.
Bin Wei AT&T Labs – Research 180 Park Avenue, Florham Park, NJ 07932 [email protected]
BIOGRAPHY Bin Wei received his Ph.D. degree in Computer Science at Princeton University in 1999.Since then, he has joined in the research community in AT&T Labs. He has published his work in various premier conferences, including "International Symposium on Computer Architecture (ISCA)," "Design Automation Conference (DAC)," "World Wide Web (WWW)," "MobiSys," and Journals such as "Computer Graphics and Applications(CG&A)," "Journal of VLSI Signal Processing(JVSL)," "Journal on Selected Areas in Communications (JSAC)," etc. He received the Research Excellence Award of AT&T Labs in 2003 and the Invention Disclosure Submission Award of AT&T in 2006. His current research interests include multimedia processing and distribution, P2P, and mobile computing. Currently, in addition to serving the WOCC, he is the TPC chair of IEEE Consumer Communications and Networking Conference (CCNC'2008) and a guest editor for the Journal of Computer Communications.
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Technical Sessions – Program Chairs
Optical Communications
Angela L. Chiu AT&T Labs - Research 200 Laurel Ave, Middletown, NJ 07748 [email protected]
BIOGRAPHY Angela L. Chiu received her S.M and Ph.D. degrees, both in electrical engineering and computer science from MIT, Cambridge, MA, in 1993 and 1997, respectively. She was a research staff member in the Optical Communication Technology group of MIT Lincoln Laboratory from April to November 1997. In November 1997, she joined AT&T Labs and lead architecture and design on IP QoS, MPLS, restoration and control plan for IP over Optical architecture. Her team pioneered the first IP class of service in 1999. Now she is a principal member of technical staff at Transport Network Evolution Research Department. During 2001 and 2002, she was a principal architect at Celion Networks, an optical start-up. She holds five U.S. patents and six others pending. She is a co-author of 6 IETF standards. Her research interests include architecture, design, and analysis of IP and optical networks.
Zhengyu (Johnny) Huang RSoft Design Group 400 Executive Blvd. Suite 100, Ossining, NY 10562 [email protected]
BIOGRAPHY Zhengyu Huang is currently the Vice President of Sales and Business Development at RSoft Design Group, a worldwide leading provider of Photonics Design Automation (PDA) software for communication and semiconductor sectors. Zhengyu has over 14 years experience in the areas of simulation, design, and fabrication of photonic integrated components. At RSoft, Zhengyu has built and managed its worldwide distribution channels covering North America, Japan, Asia-Pacific, and Europe. Zhengyu is also in charge of related business development, consulting services and technical support, and has actively involved and managed the development and commercialization of these products. On several US government sponsored research programs to develop next-generation PDA tools, he has been the principle investigator and business manager. At Columbia University, Zhengyu developed and prototyped various novel photonic integrated devices for high-speed optical communication network. Zhengyu has contributed about 30 technical papers in scientific journals and conferences. Prior to joining RSoft, Dr. Huang was a management consultant at Boston Consulting Group (BCG), where he provided strategic consulting service for leading multinational and Chinese companies in consumer goods, telecommunication, e-commerce, and automobile industries. Zhengyu also worked for China DaTong Electronics Corporation as the assistant to the CEO. Zhengyu received the Ph.D. in Applied Physics and Electrical Engineering from Columbia University, the M.S. in Condensed Matter Physics and Microelectronics from Iowa State University and the B.S. in Physics from Peking University. He is currently studying in the Executive MBA program at Columbia Business School.
- 28 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
Session Chair
Qingqing Zhang
Alcatel-Lucent 67 Whippany Road Whippany, NJ 07981 [email protected]
BIOGRAPHY
Qinqing Zhang (S’95-M’98-S’03) received her B.S. and M.S.E. degrees in electronics engineering from Tsinghua University, Beijing, China, M.S. and Ph.D. degrees in electrical engineering from University of Pennsylvania, Philadelphia, PA, US.
She is currently with Bell Labs, Alcatel-Lucent Technologies in Whippany, New Jersey. She has been working on the design and performance analysis of wireline and wireless communication systems and networks, radio resource management, algorithms and protocol designs and traffic engineering. She is the co-author of the book “Design and Performance of 3G Wireless Networks and Wireless LANs” published by Springer-Sbm in 2005, and author of a book chapter in The Handbook of Computer Networks, to be published by John Wiley & Sons, Inc., 2007. She has published numerous papers in IEEE journals and conferences. She has more than 30 awarded and pending patent applications in the area of radio resource management, media access and radio link control, and IP networking. She is also an adjunct assistant professor in the department of electrical and system engineering at University of Pennsylvania, teaching graduate level course and supervising students. She was an invited committee member for Ph.D defense at University of Pennsylvania, and Rutgers University, New Brunswick, NJ. Her research interests are the design and performance analysis of wireless and personal communication systems and networks, traffic engineering and QoS managements, and multimedia signaling processing.
Dr. Zhang is the recipient of numerous awards and scholarship, including the Bell Labs President’s Gold Award in 2002, Bell Labs Advanced Technology Recognition Awards in 1999 and 2001, and fellowship and scholarships from University of Pennsylvania and Tsinghua University. She serves on the editorial board of IEEE Transactions on Wireless Communications. She has been serving in technical program committees of various IEEE conferences, including IEEE Globecom, ICC, WCNC, VTC and MWC.
- 29 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
Road to High Speed WLAN
Xiaowen Wang Agere Systems [email protected]
ABSTRACT
Begun in 2003, the IEEE 802.11n project aims to develop new high speed WLAN standard to provide MAC throughput above 200Mbps. This requirement means that the raw physical layer link data rate need at least quadruple the data rate of 11a/g. First, different ways to increase the data rate is considered, namely, using higher density constellation (256QAM), increasing the coding rate (LDPC, Turbo code), increasing the bandwidth and special multiplexing (MIMO). Among these methods, increasing the bandwidth and special multiplexing are most effective. In the current draft, with 4 transmitter antennas and doubling the bandwidth, the maximal raw link data rate increase is 8 times of the data rate in 11a/g. Moreover, the introduction of multiple antennas provides opportunities for other MIMO techniques, such as space time coding and beamforming to improve the performance of lower data rates and hence improve the network throughput.
On the other hand, it is not enough just increasing physical layer data rate to increase the MAC throughput. MAC layer design is another fundamental aspect in achieving the speed. The more intricate physical layer requires more signaling support at the MAC layer. For example, the bandwidth increase approach is more a MAC layer design challenge than a physical layer issue. These signaling obviously increase the overhead of the system and decrease the throughput. MAC layer has to be careful designed to control the overhead so that the data rate increase in the physical layer can really turns into the increase of the network throughput.
In this talk, we are going to investigate the design issues associated with different approaches to achieve the high speed WLAN, the reasons behind the selection of these different approaches in the current draft and finally the current design specifications.
BIOGRAPHY
Xiaowen Wang is a DMTS at Agere Systems where she conducts research and development of broadband wireless communications. She serves as a guest editor for the EURASIP JASP special issue on MIMO Communications and Signal Processing. She was a technical committee member of IEEE ICC’02. She has published 15 papers on different journals and conferences and has 5 patents pending. Her research interests include digital signal processing, wireless communications and networking. She was a Research Assistant with University of Maryland, College Park, MD, from 1996 to 2000. From 1993 to 1996, she was a Teaching Assistant with Tsinghua University, Beijing, China. She received the B. S. degree from the Department of Electronics Engineering, Tsinghua Univeristy in 1993, and the M.S. and Ph. D. degree from the Department of Electrical and Computer Engineering, University of Maryland in 1999 and 2000, respectively. Dr. Wang was ranked first among the class of Department of Electronics Engineering for her B.S. degree from Tsinghua University in 1993, and was the recipient of the Graduate School Fellowship from University of Maryland.
- 30 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
WiMAX : The Path to the Mobile Internet
Shupeng Li Alcatel-Lucent Technologies 67 Whippany Road, Room 3C 232, Whippany, NJ 07981 [email protected]
ABSTRACT
WiMAX is an innovative tehnology that will make personal broadband services profitable to service providers and widely available to business and consumer subscribers at affordable prices. Given its huge benefits, WiMAX will develop as a powerful radio access solution with many integration synergies in mobile or fixed network architecture. In this presentation, we provide an introduction of the WiMAX air interface structure as well as an analysis of the key technologies used in WiMAX. In addition, we will also provide comparison of WiMAX to other competing fourth generation air interface technologies.
BIOGRAPHY
SHUPENG LI is a member of technical staff in the Advanced Wireless Systems Technologies and Algorithms Group at Lucent Technologies in Whippany, New Jersey. He has worked on the design, simulation, and performance analysis of various cellular systems since 2000. Most recently, he has been involved in the research and development for EV-DO Rev. C and 802.16 WiMAX systems. Mr. Li holds a B.S. and M.S. in electrical engineering from Beijing University of Posts and Telecommunications in China. He is working toward a Ph.D. in communications and networking at the New Jersey Institute of Technology. Mr Li has 20 US and European patents pending. He is the recipient of 2004 Bell Labs President’s Gold Award.
- 31 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
Introduction to the New Generation WiFi Technology
Lushen Ji AT&T Research [email protected]
ABSTRACT
This talk will introduce the technical highlights of the IEEE 802.11N technology and its standard development history. The presenter will also briefly introduce the current organization of the IEEE P802 group and its standard development process, as well as the market outlook for the new generation WiFi technology.
BIOGRAPHY
Dr. Ji received his Ph.D. in Computer Science from the University of Maryland, College Park, in 2001. From 2001 to 2004 he was a Member of Research Staff at the Fujitsu Labs America, where his research involved wireless mesh networking and network security. He joined the AT&T Labs Research in 2004, where he currently works as a Principle Member of Technical Staff – Research. His research interests include wireless and mobile networking and network security.
- 32 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
UMTS Long Term Evolution
Fang-Chen Cheng and Lei Song Alcatel-Lucent 67 Whippany Road, Whippany, NJ 07981 [email protected], [email protected]
ABSTRACT
The UMTS Long Term Evolution (LTE) sets the target to develop a framework for the evolution of the 3GPP radio- access technology towards a high-data-rate, low-latency and packet-optimized radio-access technology. The OFDMA and SC-FDMA technologies are adopted as the LTE DL and UL air- interface multiple access technologies respectively. The OFDMA and SC-FDMA technologies have become widely accepted primarily because of its robustness against frequency selective fading channels. The SC-FDMA has the prominent advantage over OFDMA on the peak-to-average (PAPR). The OFDMA and SC-FDMA technologies also gives a flexibility of the resource allocation and channel selective scheduling gain in both time and frequency domains. The LTE random access network embraces the distributed IP architecture to reduce the delay and access control complexity. In this presentation, we give an in-depth overview of LTE distributed network architecture, DL OFDMA and UL SC- FDMA technologies. We also provide the inside view of the resource management aspects and mobility support in the distributed network architecture.
BIOGRAPHY
Fang-Chen Cheng works in the wireless forward-looking department, Alcatel-Lucent Technologies Inc. He is currently working on the LTE receiver baseband algorithm development and performance evaluation. He also supports the 3GPP LTE and HSPA+ standard development. He led a team on the link level performance evaluation of 802.16e/WiMAX technology. He also supported the WiMAX system capacity evaluation. He had worked on the development of several Lucent’s UMTS W-CDMA baseband processors, which covers system compliance, system engineering, baseband algorithms, system design, system model development, and system verification. He led a technical support team for the 3GPP UMTS R99, HSDPA, E-DCH, standard developments. He also worked on various projects, such as VoIP performance evaluation, UMTS RF system optimization and field support, UMTS system synchronization, Iub/Iu and BTS internal traffic management, and geolocation service, and CDMA network OA&M system. He also worked a year on the call processing and design in the service mobility project at GTE Labs (now Verizon), Waltham, MA. Fang-Chen Cheng received the M.S. degree in Earth and Atmospheric Sciences from Saint Louis University and the M.S. and Ph. D degree in Electrical Engineering from Santa Clara University and Rutgers University, respectively. He has numerous conference and paper publications, He also has more than 30 US, European, and China granted or pending patents.
- 33 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC1 − Technical Session: Next Generation Wireless Communications I
Baseband Algorithms for UMTS Long Term Evolution
Lei Song and Fang-Chen Cheng Alcatel-Lucent 67 Whippany Road, Whippany, NJ 07981 [email protected], [email protected]
ABSTRACT
The OFDMA and SC-FDMA technologies are adopted by the 3GPP Long Term Evolution for the downlink and uplink air-interface multiple access technologies respectively. The OFDMA and SC-FDMA technologies have possessed several advantages of multiple access technologies, such as robustness against frequency selective fading, scalability, flexibility in resource allocation, and two dimensional channel awareness scheduling. The most promising feature of the OFDMA and SC-FDMA technologies is the simplicity in the baseband receiver design in comparison with CDMA/W-CDMA technologies. In this presentation, we have an in-depth analysis of the uplink SC-FDMA receiver design in the LTE. We outline the design principle of the OFDMA/SC-FDMA baseband receiver algorithm and compare it to that in the CDMA system. We also present the theoretical background and the implementation limitation in the baseband processing algorithms design in the OFDMA/SC-FDMA system.
BIOGRAPHY
Since March 2005, Lei Song has been with working the wireless forward-looking department, Alcatel-Lucent Technologies Inc. He is currently working on the LTE receiver baseband algorithm development and performance evaluation. Previously, from May 1997 to May 2000, he was first with the spread spectrum standard development group and then with the CDMA optimization group as a system engineer in the same company. From May 2000 to May 2002, he was with a start-up company, Wiscom Technologies, on UMTS WCDMA base band chip design as a principle engineer and product manager. From May 2002 to March 2005, he was with UTStarcom, where he was a manager/director leading a R&D group developing UMTS Node B in China. Lei Song received the B.Eng degree in Automatic Control from Tsinghua University in 1991 and the MS degree in Electrical Engineering from the Ohio State University in 1996. He received the PhD degree in wireless communication from Winlab, Rutgers University in 2001. He has more than a dozen publications and more than 20 patents granted or pending.
- 34 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Session Chair
Jianghong Luo
Alcatel-Lucent 67 Whippany Road, PO Box 903 Whippany, NJ 07981 [email protected]
BIOGRAPHY
Jianghong Luo received the B.S. and M.S. from the University of Science and Technology of China, China, in 1994 and 1997, respectively; and the Ph.D. from Rutgers University, NJ, in 2004, all in Electrical Engineering. During her Ph.D. studies, she was with the Wireless Information Network Laboratory (WINLAB) at Rutgers University. She then was a post doctor at Lehigh University, PA, in 2004, and a post doctor at Princeton University, NJ, in 2005. She joined Alcatel-Lucent technology in the RF Performance Analysis and Optimization Group in 2006. Her research interests include radio resource allocation and optimization, adaptive transmission in fading channel, turbo coded modulation, CDMA multi-user detection, and multi-antenna system.
- 35 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Recent Advances on Constant and Varying Power Orthogonal Spreading Codesin Radio Communications
Ali N. Akansu New Jersey Institute of Technology Department of Electrical & Computer Engineering University Heights, Newark, NJ 07102 USA [email protected]
ABSTRACT
Orthogonal block transforms have found their use in communications, multimedia, and many other applications. Although most applications require frequency selective and energy compacting transforms spread spectrum applications demand the opposite properties from basis functions. This talk addresses the distinct requirements of CDMA applications and also presents several novel spread spectrum orthogonal binary code solutions that significantly outperform traditional Walsh codes. Additionally, varying power spreading codes are introduced in the talk and eigen-analysis technique is expanded into the design of spread spectrum Karhunen-Loeve transforms. The time-frequency properties and BER performance of a variety of spreading code families are presented and compared for various communications scenarios. It is shown that there are many other spreading code families with various lengths and improved multi-user communications performance over the existing solutions are available. Moreover, Kronecker product (hybrid) spreading codes are shown to offer superior performance than a single code family of the same dimensionality. It is expected that the efficient design and implementation of a big library of spreading codes will bring performance improvements and more security in the CDMA radio systems of the future.
BIOGRAPHY
Ali N. Akansu received the B.S. degree from the Technical University of Istanbul, Turkey, in 1980, the M.S. and Ph.D degrees from the Polytechnic University, Brooklyn, New York, in 1983 and 1987, respectively, all in Electrical Engineering. Since 1987, he has been with the New Jersey Institute of Technology, where he is a Professor of Electrical and Computer Engineering. He was a Founding Director of the New Jersey Center for Multimedia Research (NJCMR) between 1996-2000, and NSF Industry-University Cooperative Research Center (IUCRC) for Digital Video between 1998-2000. Dr. Akansu spearheaded the National Security Agency (NSA) Center of Academic Excellence in Information Assurance Education at NJIT in 2003 and led it until October 2005. Dr. Akansu was the Vice President for Research & Development of IDT Corporation [NYSE:IDT] between June 2000-September 2001. He was the founding President & CEO of PixWave, Inc. (an IDT subsidiary) developed novel technology and products on secure P2P distribution of video over the Internet. He sits on the boards of directors of a few companies and an investment fund on CleanTech. He was an academic visitor at IBM T.J. Watson Research Center and at GEC-Marconi Electronic Systems Corp. He regularly consults to the industry and the legal sector. His current research and entrepreneurial interests include signal theory, linear transforms and algorithms, next generation Internet including security aspects, signal processing for radio communications and RF engineering, signal processing for financial engineering, renewable energy and clean technologies.
Dr. Akansu has published about 200 refereed papers and book chapters, gave numerous invited talks internationally, guided many dissertations and theses on transforms and their applications in image/video coding, digital communications, Internet multimedia and information security. He has co-authored or co-edited four books. Dr. Akansu administered and managed a number of research programs and product development projects in academia and private sector, funded by the State & Federal Government agencies, and industry.
- 36 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Interference Suppression Techniques for Multiuser MIMO Systems
Xiaodong Wang Electrical Engineering Dept., Columbia Univ. [email protected]
ABSTRACT
We consider a slow-fading narrowband MIMO multiple access channel (MAC) in which multiple users, each equipped with multiple transmit antennas, communicate to a receiver equipped with multiple receive antennas. The users are unaware of the channel state information (CSI) whereas the receiver has perfect CSI and employs a successive group decoder (SGD). We obtain achievable outage probabilities for the case where an outage must be declared simultaneously for all users (common outage) as well as the case where outages can be declared individually for each user (individual outage). We then derive the optimum successive group decoder (OSGD) that simultaneously minimizes the common outage probability and the individual outage probability of each user, over all SGDs of permissible decoding complexity. Limiting expressions for the relevant capacities as the number of users and the number of receive antennas approach infinity are also obtained. We also also briefly discuss efficient interference suppression techniques for downlink MIMO systems.
BIOGRAPHY
Xiaodong Wang received the Ph.D degree in Electrical Engineering from Princeton University. He is now on the faculty of the Department of Electrical Engineering, Columbia University. Dr. Wang's research interests fall in the general areas of computing, signal processing and communications, and has published extensively in these areas. Among his publications is a recent book entitled ``Wireless Communication Systems: Advanced Techniques for Signal Reception'', published by Prentice Hall in 2003. His current research interests include wireless communications, statistical signal processing, and genomic signal processing. Dr. Wang received the 1999 NSF CAREER Award, and the 2001 IEEE Communications Society and Information Theory Society Joint Paper Award. He has served as an Associate Editor for the IEEE Transactions on Communications, the IEEE Transactions on Wireless Communications, the IEEE Transactions on Signal Processing, and the IEEE Transactions on Information Theory.
- 37 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Adaptive Transmission with Variable-Rate Turbo Bit-Interleaved Coded Modulation
Jianghong Luo, Ruoheng Liu, and Predrag Spasojevi´c Alcaltel-lucent technology, Princeton University, Rutgers University
ABSTRACT
We study an adaptive transmission scheme based on variable-rate turbo bit-interleaved coded modulation (VR- Turbo-BICM). The proposed coding scheme employs punctured turbo codes. A continuously varying transmission rate can be obtained by changing the code rate through both puncturing of the coded bits and adapting of the modulation constellation size. The main results are elaborated in two parts. First, we derive a closed-form expression for a set of achievable rate bounds (called rate thresholds) for VRTurbo-BICM by employing recent results on the parallel channel performance of turbo code ensembles and the BICM parallel channel analysis model. Derived rate threshold is expressed as a fraction of the capacity of BICM with Gray mapping, where this fraction is a turbo code weight spectrum parameter. Simulation results illustrate that introduced rate thresholds predict well the rate versus SNR performance of VR-Turbo-BICM for a wide range of codeword error probabilities and codeword lengths. Next, based on a simplified rate threshold, we derive a power, puncturing rate, and modulation constellation size assignment policy for a slow fading channel. Simulation results show that the proposed adaptive VR-Turbo-BICM which employs a rate 1=3 mother turbo code with a block size of 3000 achieves a performance within 3 ¡ 5 dB of the ergodic capacity in a slow Rayleigh fading channel for a wide range of average SNRs.
BIOGRAPHY
Jianghong Luo received the B.S received the B.S. and M.S. from the University of Science and Technology of China, China, in 1994 and 1997, respectively; and the Ph.D. from Rutgers University, NJ, in 2004, all in Electrical Engineering. During her Ph.D. studies, she was with the Wireless Information Network Laboratory (WINLAB) at Rutgers University. She then was a post doctor at Lehigh University, PA, in 2004, and a post doctor at Princeton University, NJ, in 2005. She joined Alcatel-Lucent technology in the RF Performance Analysis and Optimization Group in 2006. Her research interests include radio resource allocation and optimization, adaptive transmission in fading channel, turbo coded modulation, CDMA multi-user detection, and multi-antenna system.
- 38 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Cooperative Source and Channel Coding For Wireless Multimedia Transmission
Ozgu Alay Department of Electrical and Computer Engineering, Polytechnic University, Brooklyn, New York, 11201 [email protected]
ABSTRACT
Past work on cooperative communications has indicated substantial improvement in channel reliability through cooperative transmission strategies. To exploit this benefit for multimedia transmission over slow fading channels, we propose to jointly allocate bits among source coding, channel coding and cooperation to minimize the expected distortion of the reconstructed signal at the receiver. Recognizing that not all source bits are equal, we further propose to protect the more important bits through user cooperation. We compare four modes of transmission that differ in their compression and error protection strategies (single layer or multiple layer source coding with unequal error protection, with vs. without cooperation). Our study also considers error propagation in decoded video due to temporal prediction and jointly optimizes a source coding parameter that controls error propagation, in addition to bits for source coding, channel coding and cooperation. In our simulations, we use the H.263+ video codec, BPSK modulation and the RCPC convolutional codes. The results show that cooperation can significantly reduce the expected end-to-end distortion, and that layered cooperation provides further improvements and extends the benefits to a wider range of channel qualities.
BIOGRAPHY
Ozgu Alay received the M.S. and B.S. degrees in Electrical and Electronics Engineering from Middle East Technical University, Ankara, Turkey, in 2003 and 2006 respectively. She is currently working toward her Ph.D. degree at Polytechnic University. Her research interests lie in the areas of multimedia signal processing with special emphasis on video compression and wireless multimedia transmission.
- 39 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC2 − Technical Session: Wireless Fundamental Researches
Mapping Link SNRs of Real-World Wireless Networks onto an Indoor Testbed
Jing Lei+, Roy Yates+, Larry Greenstein+ and Hang Liu * +WINLAB, Rutgers University. *Thomson CR, Princeton, New Jersey.
ABSTRACT
To facilitate synergistic theory-experiment exploration in wireless networking, wireless testbeds have been used where novel protocols and application concepts can be assessed under controlled and repeatable conditions. From the perspective of system-level emulation, average SNR often determines the performance of a wireless link. Thus, this work seeks to develop a systematic link SNR mapping method that replicates real-world link SNRs on an indoor testbed. The challenge is to optimize the nodes' spatial configuration and transmission powers to overcome the inherent propagation differences, as expressed in terms of pathloss exponents and environmental shadowing, between the real world and a given testbed. To avoid the technical difficulty of “forward mapping” from the real world to the testbed, we have developed a reverse mapping method to turn a testbed configuration with given link SNRs into a corresponding real-world configuration. By inducing the dB link gain differences between the testbed and the real world distance-dependent path loss to have a Gaussian distribution, a close approximation to real-world log-normal shadow fading is achieved. We present results for a variety of indoor and outdoor real-world scenarios.
BIOGRAPHY
Jing Lei received the B.Eng degree in Biomedical Engineering and the M.Eng degree in Electrical Engineering from Southeast University, Nanjing, China. She is now working towards her PhD degree at WINLAB, Rutgers University. Her main research interests are wireless communications, optimization and signal processing.
- 40 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
Session Chair
T. C. Chiang
TC Consulting Group 110 North Road, Berkeley Heights, NJ 07922 [email protected]
BIOGRAPHY
Dr. T. C. Chiang was a Technical Manager and a Distinguished Member of Technical Staff of Lucent Technologies and holds seven patents. Currently he runs his own consulting business specialized in converged networks and location based services. While he was at Lucent, he led a team engaging in the research and development of advanced converged network technologies and applications. The Blended Lifestyle Services and Internet Multimedia Subsystem (IMS) prototypes his team researched and developed have proved and been successfully shown the value of the blended services concept and their required technologies. The applications include VoIP, VoIP conferencing, Instant Messaging (IM), IM conferencing, video call, video conferencing, streaming video, shared video and Web page, mobile TV, mobile multi-party gaming, and last but not least, locations based services.
Another recent project that he was directing was the developing of geo-location technologies and location based services for 2G/3G wireless networks including CDMA/CDMA2000, UMTS, GSM, and TDMA. He is one of the pioneers and inventors of geo-location technologies. The seven patents that he holds in geo-location have tremendous commercial and governmental value. The geo-location technologies he developed are the best in class in the industry and have been included in 3GPP and 3GPP2 standards as well as in Lucent products. During his tenure of many years in Bell Labs/Lucent (formerly AT&T), he had made significant contributions to the information technology and communication fields and leading many other successful projects in addition to what described above and that included Radio Network Controller (RNC) for UMTS feature development, credit card transaction processing system and network development, computerization of banking systems (e.g., proposed solution to support bid for the People’s Bank of China project while in AT&T), WWW eCommerce development, database management system development, mechanized telephone network repair, and computer/network security. He led the Computer And Network Security Group in Bell Labs defending Bell Labs computers and networks against hackers and was the Secretary of then AT&T Corporate Security Council.
He received his PhD Degree in Electrical Engineering and Computer Science from the University of California at Berkeley, MS Degree in Electrical Engineering from the University of North Dakota, and his BS Degree in Electrical Engineering from Cheng Kung University of Taiwan. He has been active in his professional field and was an Advisor board member of WOCC. He has published several papers in technical journals and conference proceedings. He has also organized several technical conferences.
- 41 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
Converged Networks, Location Based Services, and Mobile Applications
T. C. Chiang TC Consulting Group 110 North Road, Berkeley Heights, NJ 07922 [email protected]
ABSTRACT
Mobility stemmed from the advance of wireless communications has provided people with convenience that allows people to communicate in more than one form, and access to information as well as conduct daily activities anywhere, any time. This has increased people’s productivity and enhanced people’s lifestyle. And services providers continue to look for ways to provide new services and generate new revenues to meet the demand on convenience and productivity enhancement from the subscribers. Meanwhile, wireless 3G, next generation networks, and the convergence of various networks have provided better support platforms for these services.
Location based services (LBS) are among these new services. LBS are of interest due to the location information of a wireless caller being a unique asset for adding another dimension to the ordinary wire-line or Internet applications. Examples of location based services are: navigation, security and safety, location based broadcasting, location based advertisement, and location based gaming. People are now more and more attracted to the usage of hand held GPS devices and in-vehicle navigation systems. On the other hand, FCC has mandated location information available from service providers to PSAP for E911 emergency services. The same technologies could be used for commercial location based services. With all these, perhaps now the market is ripe for location based services. It would be interesting to see how the cell phone location capability will play out among other traditional location capability.
- 42 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
How to Deploy Location-based Services Now and in the Future
Greg Burdett Andrew Corporation 3 Westbrook Corporate Center Suite 900 Westchester, Illinois 60154 USA [email protected]
ABSTRACT
Commercial location-based services (LBS) are proving to be important sources of value-added revenue, as witnessed by the fact that many wireless operators already are realizing increased ARPU. Public safety and national security regulations provide further catalysts for operators to invest in mobile location platforms. However, the various technologies capable of delivering LBS are not universally able to meet all of an operator’s needs. Different combinations of positioning technologies are often required to meet the variety of consumer and regulatory applications on a common network, as are different approaches to network signaling and device interaction.
This presentation will explore the multitude of positioning technologies available today from basic cell-based positioning, through enhanced positioning, to network measurements, GPS, and hybrid technologies. Network architectures including control plane and user plane approaches will be described, compared, and contrasted. The integration of different generations of network technology—from 2G and 3G cellular to general broadband Internet access—will be explored. A unique perspective on the location value proposition for Internet services, including VoIP, will be given, as well as a vision of a roadmap for the seamless evolution of location technology and architectures into the future.
BIOGRAPHY
Greg Burdett joined Andrew Corporation in 2005 as director, Geometrix® MLC Business Development, Wireless Network Solutions. Previously, he was the business lead for Nortel’s Mobile Location Center (MLC) organization until Andrew acquired that group in 2005, incorporating them in its Network Solutions Group. Mr. Burdett has 20 years of telecom industry experience, having held numerous senior management leadership positions throughout his career. Since 2001, his activities have been focused on the location marketplace with both cellular and IP location contexts. Mr. Burdett has a degree in systems design engineering from the University of Waterloo, and has been awarded a number of telecommunications patents. He is based out of Toronto, Canada.
- 43 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
Location-based (Push) Services – Are we there yet?
Vishy Poosala Chief Technologist – Geographic Messaging Service Bell Labs / Alcatel-Lucent Ventures 600 Mountain Ave., Murray Hill, New Jersey [email protected]
ABSTRACT
For nearly a decade now, location-based services have had the dubious distinction of constantly being among the “applications destined to take-off this year”. A steady build-up of location infrastructure in carrier networks, handset improvements, and user familiarity with GPS in their day-to-day lives have finally prompted some significant initial successes in LBS. In this talk, we will look at a class of advanced services called Location-based Push, or Geofencing, applications, and see the technology enablers that make them possible.
In Pull LBS, users explicitly request the network for information around a location, e.g., restaurants around them. In contrast, in Push LBS, after users have opted-in to the service, content is automatically delivered when they enter or leave certain regions. We call this GMS - Geographic Messaging Service. Just as SMS and MMS can be used for peer-to-peer messaging as well as premium content delivery, GMS can be the medium for many location-based messaging applications. However, Push LBS comes with some significant technical challenges – the primary one being the resources consumed in detecting when a user crosses a geofence. In this talk, I will present some new innovations that address this and other problems, making large scale Push LBS possible for the first time.
BIOGRAPHY
Dr. Vishy Poosala (vishy) is currently the Founder and Chief Technologist of GMS, an internal LBS venture at Alcatel-Lucent. His mission is to lead an entrepreneurial team in creating innovative mass-scale applications in the Mobile and Internet crossover space. He has a deep understanding of the business and technological aspects of Mobile applications (especially Location-based Services), Web services, and Software systems, with 16 patents granted in these areas. Dr. Poosala has been a leader in the LBS space for the past 6 years, developing a full understanding of both the carrier networking and application aspects. He led a team in creating Lucent’s flagship LBS product called iLocator. In the last two years, he has been focused on creating the cutting edge Push LBS solution GMS – including forming the concept, developing smart geofencing technology, product development, and business development.
Dr. Poosala also created the web mashup site for sending disaster/traffic/weather/recall alerts (www.alertearth.org), which monitors dozens of websites and has sent out more than a million email and SMS alerts to its subscribers. He led teams in creating innovative optical network management products, an internet proxy server, and innovative database technologies. Dr. Poosala has been recognized with numerous achievement awards at Bell Labs, including three President’s Gold Awards. He has been interviewed on the television about LBS – History channel (“Modern Marvels”) and WNBC - and is an active participant in research forums.
Dr. Poosala He received his B.Tech in Computer Science from IIT Madras, India, in ’92, M.S and Ph.D from the University of Wisconsin-Madison in ’97, and has been with Bell Labs and currently Alcatel Lucent Ventures since then in different roles - researcher, technical manager, and chief technologist; he also enjoyed being an Adjunct Professor at NYU teaching databases for a semester to more than 100 graduate students.
- 44 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
Automotive Networking and Applications − Opportunities and Challenges
Wai Chen Telcordia Technologies One Telcordia Drive, RRC-1T225, Piscataway, NJ 08854-4157, U.S.A. [email protected]
ABSTRACT
With rapid penetration of wireless access and information processing technologies changing the way that vehicle users communicate, significant research efforts have been aimed at improving vehicle safety and on-demand information access. Much recent research has been directed at seamless networking technology to effectively utilize heterogeneous communication media for vehicle users, and ad hoc networking technology for vehicle-to-vehicle and vehicle-with-infrastructure communications. To transition the current technical and experimental results into cost- effective and deployable solutions, considerable R&D and standardization efforts are still required. In this talk, I will start with example vehicle safety networking applications and associated technical challenges. I will then outline some of the current technical approaches and open technical issues, and discuss their potential impacts on vehicle networking.
BIOGRAPHY Dr. Wai Chen received his B.S.E.E. degree from Zhejiang University; M.S.E.E., M.Phil., and Ph.D. degrees from Columbia University in the City of New York. Currently, he is with Applied Research, Telcordia Technologies Inc. (formerly known as Bellcore) where he is a Chief Scientist and Director of Ubiquitous Networking and Services Research. Dr. Chen has been leading a vehicular communications research program in collaboration with a major automaker, since 2000, on automotive networking technologies for vehicle safety and information applications. He has also been the Principal Investigator of several government funded projects on advanced networking technologies research. Dr. Chen served as a Guest Editor for Special Issue on Inter Vehicular Communication (IVC) for IEEE Wireless Communications Magazine (2006), the IEEE Distinguished Lecturer (2004-2006), the Co-Chair for Vehicle-to-Vehicle Communications Workshop (V2VCOM 2005 and V2VCOM 2006) co-located at ACM MobiQuitous, and the Co-Chair for the 1st IEEE Workshop on Automotive Networking and Applications (AutoNet 2006) co-located with IEEE Globecom 2006. His current research interests are vehicle communications and ITS applications, and mobile wireless communications systems.
- 45 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC3 − Panel Session: Mobile Applications
Mobile Phone Platforms and Service Enablers
John N. Wong Senior Consultant Huawei Technologies [email protected]
ABSTRACT
A mobile phone enables a network operator to offer services to attract subscribers, to increase the average revenue per subscriber, and to minimize subscriber churns. Huawei Technologies offers third generation handsets to meet operator’s needs, including attractive Industrial Design, custom User Interface for branding, application clients and protocol stacks to support operator service roadmap, and high speed air interface for 3G services. This talk presents Huawei’s wireless device platforms and some of the emerging application such as IMS and Mobile TV.
BIOGRAPHY
J. N. Wong Ph.D. in Physics, Yale University B.S. in Physics, Cheng Kung University
I am currently working for Huawei Technologies as technical consultant. My previous work experience was with Motorola and Lucent. At Motorola, I provided 3G technical support for Europe. At Lucent, I worked for 13 years at Bell Labs, ending with a 12-month assignment to Beijing to develop GSM infrastructure business in China.
- 46 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless ICs and SoC Design
Session Chair
Wei Luo
Broadcom 100 Matawan Rd, Matawan, NJ 07747 [email protected]
BIOGRAPHY
Wei Luo received the B.S. degree in Electronic Engineering from Tsinghua University, Beijing China in 1995, and M.S. and Ph.D. degrees in Electrical Engineering from University of Maryland, College Park in 1997 and 1999 respectively.
Between 1999 and 2003, he was a Member of Technical Staff with Performance Analysis Department, Bell Labs, Lucent Technologies. At Lucent, he worked on wireless cellular system design, including system architecture, protocol and algorithm design, and 3GPP standard contributions. He is currently a principal system scientist with Broadcom Corporation Mobile Wireless Business Unit, Matawan, New Jersey, where he is the key architect and engineer designing and developing wireless cellular baseband system on chip used for multimode GSM/GPRS/EDGE, WCDMA and HSDPA handsets. He has published more than 20 technical papers in the prestigious international journals and conferences. He holds six U.S. and international patents with two additional pending. Dr. Luo is an adjunct professor at New Jersey Institute of Technology.
- 47 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless IC and SoC Design
Advanced Receiver Structures for OFDM-MIMO Detection
Xiao-Feng Qi Broadcom Corporation [email protected]
ABSTRACT
An OFDM system is conducive to enhancement by coded OFDM techniques. Recent standardization of such schemes in 802.11n and 802.16 prompted search for cost-effective receiver architectures that delivers on the promised spatial multiplexing gain. This talk highlights one such implementation based on the emerging lattice reduction techniques, with demonstrated performance approaching its brute force maximum likelihood (ML) counterpart.
BIOGRAPHY
Dr. Qi has worked in communications industry for over 15 years, having recently joined Broadcom from Intel’s Mobility Group, where he was with its CTO Office exploring next-generation architecture for WiMax and WiFi products, and was Director of Advanced R&D for Intel’s Broadband Product Group during 2003-04. Prior to Intel, he had been with AT&T, Globespan, and led the NJ systems group for Level One Communications during 2000-03. His interest and expertise centers on the physical layer design for various wired and wireless systems.
- 48 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless IC and SoC Design
HW and SW Co-verification of Baseband HSPA Processor with Seamless PSP
Zheng Li Mobility Solution R&D, Alcatel-Lucent, 2E-322, 67 Whippany Rd, Whippany, NJ07981 [email protected]
ABSTRACT
In the early stage of baseband channel card development of HSPA (High Speed Packet Access) for W-CDMA system, an effective Hardware and Software co-verification platform can help the team to reduce the TTT (Time To Technology) period. A cycle-accurate co-simulation and co-verification environment (CVE) for DSP Seamless PSP model and VHDL ModelSim will help the developers to achieve this goal. The configuration and execution of co- verification tool takes place in a high abstract level, while the DSP FW and RTL partition can progress in specific design level and the executable code will target to the physical board when it’s available. Using the Seamless CVE simulator on Unix station, with the HSPA symbol-level control logic being verified in a DSP simulator, the chip- level signal processing can be verified parallel in a VHDL simulator in the same environment that keeps the design consistency. The final developed DSP software and HW RTL code can be directly re-used on the physical HSPA channel processor card simultaneously or later in the lab or in the field. In this paper, the 3G HSPA technology is briefly reviewed, the co-verification methodology for early stage development of HSDPA is fully studied; the same concept to be applied to HSUPA with further code development is investigated. New system level verification methodologies that could close the gap between the SW design and HW design, and between the sequential processing and parallel processing are also shortly discussed for future applications.
BIOGRAPHY
MTS, Lucent Technologies, Whippany, USA, March 2001 – now. Responsibility: DSP FW development of 3G W-CDMA Base Station. ASIC research engineer, Ericsson Mobile Communication, Japan. March 1999 – March 2001. Responsibility: UMTS W-CDMA Cell-Phone air-interface & baseband ASIC chip design Researcher Associate, Institute of Acoustics, Chinese Academy of Sciences, Beijing, China. Aug. 1986 – Sept. 1993 Responsibility: R&D of HF Short-wave Modem and Speech Communication systems.
Ph.D. 1999, University of Tokyo Ph.D. Candidate 1993 ~1995, Peking University M.E. 1989, Beijing University of Posts & Telecommunications More than 30 papers have been published on technical journals, conferences and symposiums in the area of digital communication technology, ASIC design, CMOS image sensors, switched-capacitor network, Active RC filtering and OpAmp.
- 49 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless IC and SoC Design
3G Soft Modem Design
Ming-Jye Sheng Founder, SysAir Inc. 1-908-998-1268 Suite 202, 430 Springfield Ave. Berkeley High, NJ [email protected]
ABSTRACT
The talk provides a new Cellular PC (CPC) modem platform design for desktop, notebook, ultra-mobile PCs. The new platform is much more affordable than the current marketed platform. The design moves base band and protocol processing from an expensive dedicated SoC to the spare capacity of the PC’s main microprocessor • Reduce the need for expensive SoC R&D • Reduce the complexity of the ASIC • Reduce the number and complexity of support components • Reduce time-to-market for each revision • Elegantly circumvent the barriers to lowering cost and associated royalty • Easy to re-configure, upgrade, and multi-mode operation
BIOGRAPHY
Dr. Ming-Jye Sheng, has broad experience in WCDMA L1/L2/L3 radio interface protocol. He is the founder and CTO of SysAir Inc. since 2002. He has lead and developed complete WCDMA/HSDPA/TD-SCDMA baseband IP for soft modem design. Previous customers include leading R&D institutions such as Taiwan’s ITRI Computer and Communication Lab, and III Network and multimedia Lab. He has 5 patents pending for SysAir Inc.
From 2000 to 2002, Dr. Sheng was with Wiscom Technologies, a multi-millions start-up company, designing and manufacturing WCDMA baseband chip for mobile handset manufactures in Taiwan and China. He served as director of software development for phased delivery of Mobile Terminal Protocol Software. In this capacity, he also developed technical/business partnership with Chinese Mobile Manufacturers.
From 1996 to 2000, Dr. Sheng was with Lucent Bell Labs as a Distinguished Member of Technical Staff as a lead system engineer of the WCDMA NTT DoCoMo project for the design of the 3G CDMA Radio Network Controller and Base Station. Dr. Sheng’s WCDMA protocol design contribution help complete delivery of the Lucent Version 2 prototype to the NTT DoCoMo, and brought multi-million commercial contract as well as R&D funding into the Lucent DoCoMo project.
In early nineties, He also worked at AT&T Bell Labs on network provisioning project, and then co-founded start up company for internet service. His research interest included wireless system, parallel and distributed computing, and VLSI computation. Dr. Sheng received BSEE from the Cheng Kung University, Taiwan, MS from Taiwan University, Taiwan, and Ph.D. in CS from the Ohio State University.
- 50 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless IC and SoC Design
SoC Design and Test Methodologies for Wireless Communications Baseband Processors
Henry Ye Alcatel-Lucent 2E-312/67 Whippany Road/Whippany, NJ 07981 [email protected]
ABSTRACT
In the past ten years tremendous progresses have been made in the industry of wireless communications baseband processors that are used in base stations and terminals. Due to the great improvements in air interface capacities in 3G systems such as 3G1X/EVDO, UMTS/HSDPA/HSUPA, and TD-SCDMA and the expected more improvements in post-3G technologies such as LTE and EVDO RevC, the baseband processors are becoming more complicated with increased density and higher level of integration to support advanced features. At the same time, the cost and power consumptions of those baseband processors are indeed decreased by taking the advantages of the advancements in VLSI technologies, and the appearance of SoC devices.
A SoC device usually contains multiple complex functional blocks linked by high speed buses on the same silicon die such as custom-designed hardware blocks, embedded cores like ARM, PPC, or DSP, and functional specific hard cores such as PCI, FFT/IFFT engines, and Turbo encoder/decoder engines. It may also contain a fairly large amount of embedded memories or standard interfaces to external memories. While the custom-designed hardware blocks preserve best density efficiency, the embedded cores allow maximal flexibility and programmability that are important for certain functionalities, and the hard cores allow the designers to reuse the IP cores designed by third parties to shorten development cycles. However, SoC devices also bring two major complexities to chip architects and designers. The first is how to optimally partition system functionalities between custom-designed hardware, embedded cores, and hard cores designed by third parties based on the specific high level requirements (e.g., performance, cost, flexibility, time-to-market, and testability). The second is how to efficiently verify and co-verify the individual function blocks, the interactions between different blocks, and the integrity of the overall system design. While there is no single methodology for all SoC design and verification, this paper is intended to provide some guidelines of the methodologies that may be applicable to the current generation wireless communication baseband processors.
BIOGRAPHY
Received B.S. degree in Mathematics in 1990 from the University of Science and Technology of China, Hefei, China. Received M.S. degree in Mathematics in 1992, M.S. degree in Electrical Engineering in 1995, and Ph.D. degree in Electrical Engineering in 1996, all from the University of Notre Dame, Notre Dame, IN. Conducted research work between 1996 and 1997 at Arizona State University, Temp, AZ as a faculty associate. Joined Lucent Technologies as a Member of Technical of Staff in June 1997. Became a Distinguished Member of Technical Staff in October 2000, and a Consulting Member of Technical Staff in August 2006. Dr. Ye has been working on SoC baseband solutions for 2G/3G CDMA/UMTS systems as a lead architect since 2000. .
- 51 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC4 − Technical Session: Wireless IC and SoC Design
Transmitter Amplifiers for Impulse-based UWB System
Renfeng (Laura) Jin Lehigh University 5 East Packer Avenue Bethlehem, PA 18015 USA [email protected]
ABSTRACT
While channelized ultra-wide-band (UWB) communication system is a potential successor to Bluetooth in high- data-rate personal area networks (PANs), impulse-based UWB system has additional potential for precise location and identification that are important in commercial and military applications such as search and rescue. The presentation will start with an overview of the transceiver design in an impulse-based UWB system and ends with detail discussion of on-going UWB pulse amplifier research between Lehigh University, USA and Nanyang Technological University, Singapore.
BIOGRAPHY
Renfeng Jin received her B.E. degree in Electronics Engineering from Shanghai Jiao Tong University, China in 2003. Since August 2005, she has been enrolled in the Ph.D. Electrical Engineering program at Lehigh University, Bethlehem, PA. As a research assistant in Compound Semiconductor Technology Laboratory, she is involved with UWB identification and localization system project, focusing on high voltage UWB transmitter amplifier design. From 2003 to 2005, she was a product Engineer in Intel (Shanghai) Ltd., working on non-volatile memory devices test and characterization.
- 52 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Session Chair
Guiling (Grace) Wang
Computer Science Department New Jersey Institute of Technology Newark, NJ 07102 [email protected]
BIOGRAPHY
Guiling (Grace) Wang received her BS degree from Nankai University, China. She received the PhD degree in Computer Science and Engineering and a minor in Statistics from the Pennsylvania State University at May 2006. She is currently an assistant professor in the Computer Science Department at New Jersey Institute of Technology. Her research interests include distributed systems, wireless networks and mobile computing, with a focus on wireless sensor networks.
- 53 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Achieving Confidentiality in Distributed Sensor Data Management
Wensheng Zhang Iowa State University Ames, IA 50011 [email protected]
ABSTRACT
Widely deployed in various military and civilian scenarios, sensor networks have become an indispensable segment of national cyber infrastructure. In a sensor network, sensor nodes sense their environment continuously and generate data to describe the sensing results; once the data have been generated, an essential mission of the network is to manage sensor data such that useful data are stored safely and authorized users can have access to data of their interest. On the other hand, in real application scenarios, sensor nodes are usually deployed in unattended even hostile environments, and they typically lack tamper resistance. As such, sensor data management is susceptible to various security attacks. This talk will focus on one fundamental aspect for securing sensor data management, i.e., securing distributed data storage and retrieval. Three schemes, namely SHB, EHB and APB, will be presented to deal with the problem. All the schemes have the properties that, only authorized entities can access data stored in the sensor network, and the schemes are resilient to a large number of sensor node compromises. The EHB and APB schemes do not involve any centralized entity except for a few initialization or renewal operations, and thus support secure, distributed data storage and retrieval. The APB scheme further provides high scalability and flexibility, and hence is most suitable to real applications among the three schemes.
BIOGRAPHY
Wensheng Zhang received his Ph.D. in Computer Science and Engineering from Penn State University in 2005. He is now an Assistant Professor in the Department of Computer Science and the Center of Information Assurance at Iowa State University. His research interests span wireless networking, network security, and applied cryptography. His research is currently supported by an NSF Cyber Trust grant. He is a member of ACM and IEEE.
- 54 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Location-Based Security Design for Wireless Sensor Networks
Yanchao Zhang Department of Electrical and Computer Engineering New Jersey Institute of Technologyy Newark, NJ 07102 [email protected]
ABSTRACT
Wireless sensor networks (WSNs) are finding growing applications in military, homeland security and civilian scenarios. Robust security support is vital to the survivability of WSNs deployed in unattended and hostile environments such as military and homeland security operations. Security design for WSNs, however, is complicated by various factors such as resource constraints of sensor nodes, the open wireless channel, the large network scale, and the lack of attendance. In this talk, I will first discuss the security challenges and requirements in WSNs. Then I will show how to harness the location-dependent nature of WSNs to design much more effective and efficient security schemes. In particular, I will present a novel location-based authentication scheme that can simultaneously tackle a number of security issues such as neighbor-to-neighbor authentication, key agreement, the Sybil attack, the Node Duplication attack, the Random Walk attack, and the Wormhole attack, which were addressed separately in the past. I will also illustrate a location-based threshold-signing scheme to thwart the Data Injection attack, in which attackers inject bogus data into the network to consume scarce network resources. In comparison with previous solutions, our location-based security schemes guarantee that the network remains highly secure even when many nodes are captured and controlled by attackers.
BIOGRAPHY
Yanchao Zhang received the BE degree in Computer Communications from Nanjing University of Posts and Telecommunications, China, in 1999, the ME degree in Computer Applications from Beijing University of Posts and Telecommunications, China, in 2002, and the PhD degree in Electrical and Computer Engineering from the University of Florida in 2006. He is currently an assistant professor in the Department of Electrical and Computer Engineering at New Jersey Institute of Technology. His research interests include network and distributed system security, wireless networking, and mobile computing. He is a member of the IEEE and the ACM.
- 55 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Fault Tolerant Sensor Networks Against Random Node Failures
Yanyong Zhang WINLAB/Rutgers University 671 Rt. 1 South North Brunswick, NJ 08902-3390 [email protected]
ABSTRACT
The success of sensor-driven applications is reliant on whether a steady stream of data can be provided by the underlying system. This need, however, imposes great challenges to sensor systems, mainly because the sensor nodes from which these systems are built have extremely short lifetimes. In order to extend the lifetime of the networked system beyond the lifetime of an individual sensor node, a common practice is to deploy a large array of sensor nodes and, at any time, have only a minimal set of nodes active and performing duties while others stay in sleep mode to conserve energy. With this rationale, random node failures, either from active nodes or from redundant nodes, can seriously disrupt system operations. In this talk, we present R-Sentry, which attempts to bound the service loss periods due to node failures, by coordinating the schedules among redundant nodes. Our simulation results show that compared to PEAS, a popular node scheduling algorithm, R-Sentry can provide a continuous 95% coverage through bounded recoveries from frequent node failures, while prolonging the lifetime of a sensor network by 30%. In this talk, we will also present other algorithms such as P-Sentry.
BIOGRAPHY
Yanyong Zhang received Ph.D. in Computer Science and Engineering from Penn State University in 2002. She is an assistant professor in the department of Electrical and Computer Engineering at Rutgers University, and she is also a faculty member at Wireless Laboratory (WINLAB). Her current research interests include sensor networks, sensor network security and privacy, and fault-tolerant sensor networks. She has received several NSF grants on these topics, including an NSF CAREER award. She is a member of ACM and IEEE.
- 56 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Hybrid Networks: Advancing the Theory and Design of Wireless Networks
Bo Niu, Shengshan Cui and Alexander M. Haimovich Center for Wireless Communications and Signal Processing Research Department of Electrical and Computer Engineering New Jersey Institute of Technology Newark, NJ 07102, USA {bo.niu, shengshan.cui, alexander.m.haimovich}@njit.edu
ABSTRACT
Much of the research and development efforts in wireless networks have largely focused on two types of network architecture: fixed or ad-hoc. Fixed networks are epitomized by cellular networks, while ad-hoc networks are conceived to handle peer-to-peer traffic, and lack infrastructure. Future wireless networks will be required to support a wide range of services with flexible coverage, capacity, and mobility. While at present, wireless networks are represented by separate technologies such as cellular, WiFi 802.11, and WiMax 802.16, consumers clamor for transparency of applications will tend to blur these distinctions. The proliferation of technologies and computing devices will create data traffic patterns that go beyond the uplink/downlink paradigm of today’s networks and will include significant peer-to-peer components. Conventional network architectures seem ill suited to address future data requirements. In this talk, we discuss hybrid networks as a network architecture that draws on the combined strengths of fixed and ad-hoc networks to create a vital design for the next generation Internet. Hybrid networks support both peer-to-peer data traffic and traffic through infrastructure nodes. The talk will present salient properties of hybrid network, review recent results, and point out challenges and research directions.
- 57 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC5 − Technical Session: Wireless Ad-hoc and Sensor Networks
Auction-based Spectrum Sharing for Cognitive Radio Networks
Jianwei Huang Princeton University Department of Electrical Engineering, ISS Group, E-Quad, Olden Street, Princeton, NJ 08544 [email protected]
ABSTRACT
Cognitive radio technology has the potential of greatly improving the spectrum usage efficiency by allowing flexible spectrum sharing among various radio devices, networks and operators. This could overcome the current performance bottleneck induced by the rigid licensed-based spectrum regulations, and bring fundamental paradigm shift to the areas of wireless communications and networking.
In this talk, we will highlight some latest exciting progress in this area. We will consider an “Exclusive Usage” spectrum model in a cognitive radio network, where a primary licensee is willing to share the spectrum with a group of secondary cognitive users, subject to an interference temperature constraint at the primary user’s receiving antenna. The secondary users access the channel using spread spectrum signaling and so interfere with each other. We will propose two auction mechanisms to efficiently and fairly allocate the resource among secondary users, despite of the complicated coupling among users. The proposed algorithms are distributed, have low complexity, enjoy global convergence, and have good performance. We will also discuss some of the exciting ongoing research directions based on the presented results.
This work is jointly done with Randall Berry and Mike Honig at Northwestern University.
BIOGRAPHY
Dr. Jianwei Huang will work as an Assistant Professor in the Department of Information Engineering at Chinese University of Hong Kong (CUHK) from August 2007. He is currently a Postdoctoral Research Associate in the Department of Electrical Engineering at Princeton University (Princeton, NJ, USA). He received the B.S degree in Electrical Engineering from Southeast University (Nanjing, Jiangsu, China) in 2000, and the M.S. and Ph.D. degrees in Electrical and Computer Engineering from Northwestern University (Evanston, IL, USA) in 2003 and 2005, respectively. In 2004 and 2005, he worked in the Mathematics of Communication Networks Group at Motorola (Arlington Heights, IL, USA) both as a full time summer intern and a part time researcher. In 1999, he worked as a summer intern in the Department of Change Management at GKN Westland Aerospace (Cowes, Isle of Wight, UK). His main research interests lie in the area of communications and networking, with specific areas including cognitive radio networks, wideband OFDM and CDMA systems, wireless medium access control, multimedia communications, cooperative communications, and wired DSL broadband access networks.
Dr. Huang is an Associate Editor of Elsevier International Journal on Computers and Electrical Engineering. He is the Lead Guest Editor of the IEEE Journal of Selected Areas in Communications special issue on Game Theory in Communication Systems, the Lead Guest Editor of the Journal of Advances in Multimedia special issue on Collaboration and Optimization in Multimedia Communications, and a Guest Editor of the Journal of Advances in Multimedia special issue on Cross-layer Optimized Wireless Multimedia Communications. He has been serving as a TPC member for IEEE GlobeCom, ICCCN, CCNC, and CrownCom. Dr. Huang is the recipient of a 2001 Walter P. Murphy Fellowship at Northwestern University and a 1999 Chinese National Excellent Student Award.
- 58 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC6 − Technical Session: Next Generation Wireless Communications II
Session Chair
Gang Li
Alcatel-Lucent 67 Whippany Road, Whippany, NJ 07981 [email protected]
BIOGRAPHY
Gang Li has been with the Department of Forward Looking Work, Wireless Business Group, Alcatel-Lucent, since 1998. He is currently working on system design issues for Mobile WiMAX products, including mobility management algorithms development, end-to-end system performance analysis and optimization. Previous projects he worked on include the performance analysis of 3G1X/EVDO systems with variant data, voice, and multimedia applications, development of radio resources management algorithms supporting QoS, wireless end-to-end data system simulator/emulator, 3G technology trial systems, and CDMA handset. Before joining Lucent Technologies, Gang Li was with Bell-Northern Research/Nortel for four years, where he worked in a wireless advanced technology group and was responsible for development of new signal processing technologies and DSP algorithms for Nortel’s 2G cellular base station products.
- 59 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC6 − Technical Session: Next Generation Wireless Communications II
Behind Mobile WiMAX Technology
Chenxi Zhu, Ph.D. Member of Research Staff Fujitsu Labs of America 8400 Baltimore Ave, #302 College Park, MD 20740 [email protected]
ABSTRACT
OFDMA is used in the IEEE 802.16e_2005 standard for mobile broadband access. This talk will give an brief introduction of the OFDMA PHY and MAC layer in the IEEE standard, and related network layer architectures developed by WiMAX Forum NWG to support high spectrum efficiency and mobility, and to provide user QoS for different type of applications. It ends with the on-going development in the IEEE 802.16 group, including 16j (multi-hop relay) and 16m (advanced air interface).
BIOGRAPHY
Chenxi Zhu graduated from Tsinghua University, China with a BS degree in Electronics Engineering in 1993. He got his MS degree in 1996 from the University of Guelph, Canada in chemical physics, and his Ph.D. degree in EE from the University of Maryland, College Park in 2001. His Ph.D. thesis was on distributed resource allocation and QoS routing protocols in mobile ad hoc networks. From July 2001 to October 2004 he was with Flarion Technologies in New Jersey as a system engineer and worked on flash-OFDM. Since October 2004 he has been with Fujitsu Labs of America, College Park, Maryland. His work is mainly on wireless systems and MAC layer, and radio resource management for WiMAX and wireless LANs. He is a voting member of IEEE 802.16 and is currently active in the 802.16j standard group.
- 60 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC6 − Technical Session: Next Generation Wireless Communications II
Overview of 4G Ultra Mobile Broadband (UMB) Air Interface
Yifei Yuan Alcatel-Lucent 67 Whippany Rd., Whippany, NJ 07981 [email protected]
ABSTRACT
With orthogonal frequency division multiple access (OFDMA) and various innovative features, Ultra Mobile Broadband is promised to provide much higher spectral efficiencies compared to 3G wireless networks and capable of peak physical data rate at 260 Mbps in 20 MHz in forward link. This presentation begins with OFDMA basics and background on UMB, followed by the highlight of UMB air interface standard including Physical and MAC layers.
BIOGRAPHY
Yifei Yuan received B. Eng. and M. Eng. degrees from Tsinghua University of China in 1993 and 1996, and a Ph.D. from Carnegie Mellon University in 2000. He has been with Alcatel-Lucent since Nov. 2000, beginning in Open Innovation Lab and then in RF performance analysis group, working on signal processing, intelligent antennas, UMTS channel element design, EV-DO Broadcast Multicast service, OFDM based 4G wireless standards with emphasis on channel coding, modem design, link adaptation, advanced transmission and receiver technologies, MAC design and system performance optimization for packet voice and high-speed data. His research interests include multiple antenna systems, equalization, error control coding, and radio resource management.
- 61 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC6 − Technical Session: Next Generation Wireless Communications II
Overview of Ultra Mobile Broadband Air Interface Upper Layers Standard
Jialin Zou Alcatel-Lucent Room 3A-367, 67 Whippany Rd. Whippany NJ 07981 [email protected]
ABSTRACT
The Ultra Mobile Broadband (UMB) standard has already been baselined and the scheduled publication date is April 26, 2007. This presentation provides an overview on UMB Air Interface (AI) protocols and the major features in MAC and upper layers. Other UMB related activities in 3GPP2 TSG-C and other TSGs will also be introduced.
BIOGRAPHY
Jialin Zou is with Department of Wireless Standards, Wireless Business Group, Alcatel-Lucent. His current responsibilities are standard development on MAC and upper layers, standard support for customers and development, and representing Lucent interest in 3GPP2 TSG-C. After joined Lucent, he has worked on CDMA base-band signal processing algorithms, real-time SW and ASIC architecture, and CDMA RAN system engineering. His areas of interest include QoS and GoS for multi-media wireless communications, RAN call processing and wireless transceiver architecture. He holds a Ph. D. degree in Electrical Engineering from the University of Victoria, Canada, a M.S. degree from the Graduate School, University of Science and Technology of China, and a B.S. degree from Zhejang University, China.
- 62 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC6 − Technical Session: Next Generation Wireless Communications II
Technical Overview of 3GPP Long Term Evolution (LTE) and 3GPP2 Ultra Mobile Broadband (UMB)
Hyung G. Myung Qualcomm/Flarion Technologies 135 Route 202/206 South Bedminster, NJ 07921 [email protected]
ABSTRACT
The current 3rd generation cellular wireless systems are evolving into 4th generation. As a pathway to 4G, 3GPP is currently developing Long Term Evolution (LTE) standard and 3GPP2 is working on Ultra Mobile Broadband (UMB) standard. Both systems use OFDMA multicarrier modulation, MIMO, and other advanced features to greatly improve the mobile wireless services. In this presentation, we give a technical overview of 3GPP LTE and 3GPP2 UMB. Specifically, we describe the system architecure, physical layer, and MAC layer of both systems.
BIOGRAPHY
Hyung G. Myung received the B.S. and M.S. degrees in electronics engineering from Seoul National University, South Korea in 1994 and in 1996, respectively, and the M.S. degree in applied mathematics from Santa Clara University, California in 2002. He received his Ph.D. degree from the Electrical and Computer Engineering Department of Polytechnic University, Brooklyn, NY in January of 2007. From 1996 to 1999, he served in the Republic of Korea Air Force as a lieutenant officer, and from 1997 to 1999, he was with Department of Electronics Engineering at Republic of Korea Air Force Academy as an academic instructor. From 2001 to 2003, he was with ArrayComm, San Jose, CA as a software engineer. During the summer of 2005, he was an assistant research staff at Communication & Networking Lab of Samsung Advanced Institute of Technology. Also from February to August of 2006, he was an intern at Air Interface Group of InterDigital Communications, Melville, NY. He is currently with Qualcomm/Flarion Technologies, Bedminster, NJ as a senior engineer. His research interests include DSP for communications and wireless communications.
- 63 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Session Chair
Guangying Li
Alcatel-Lucent 67 Whippany Road Whippany, NJ 07981 [email protected]
BIOGRAPHY
Dr. Li received the Ph.D. degree in electrical engineering from University of Pennsylvania, Philadelphia, in 1994, and the B.S. and M.S. degrees in Physics from Peking University, Beijing, China, in 1983 and 1986 respectively. He is currently a Technical Manager in Wireless Performance Department of Alcatel-Lucent in Whippany, New Jersey. His major responsibilities include RF performance analysis and optimization of CDMA 3G1x and 1xEVDO technologies.
- 64 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Status of IMS-Based Next Generation Networks for Fixed Mobile Convergence
Fuchun Joseph Lin Chief Scientist Telcordia Technologies www.telcordia.com 1 Telcordia Drive, Piscataway, NJ 08854, USA Tel: 1-732-699-2260, Fax: 1-732-336-7026 [email protected]
ABSTRACT
The IP Multimedia Subsystem (IMS) defined by 3GPP has received wide acceptance by various network standards development organizations and industrial forums as the choice of service architecture for next generation networks. Included in this convergence effort are organizations/initiatives such as 3GPP2 MMD, ITU-T NGN and FG-IPTV, TISPAN NGN, ATIS NGN and IIF, CableLabs PacketCable 2.0, WiMAX Forum NWG2.0, and Verizon Wireless A-IMS etc. This global trend of evolving towards an IMS-based Next Generation Network promises a true Fixed Mobile Convergence in which subscribers can access their services from anywhere (roaming and mobility), via any access technologies (either mobile or fixed), and using either a single or multiple devices.
Nevertheless, with so much IMS/NGN development in parallel it is very difficult to know the status of what’s happening in this area. This talk intends to address this concern by providing a high level analysis of how these organizations are working together in shaping the architecture and standards of an IMS-based Network Generation Network, supporting multimedia session and video streaming delivery services over a variety of access technologies such as DSL, Cable, WCDMA, CDMA2000, WiFi, and WiMAX etc. The talk will start with the core IMS as the base, discuss the major extensions proposed by ITU-T and TISPAN, and then point out the specific requirements from PacketCable 2.0 and WiMAX Forum.
Next the talk will discuss the technical challenges faced by IMS by looking into the architectural improvements proposed by Verizon Wireless A-IMS, including support of both SIP and non-SIP applications, support of fast VoIP handoff, and support of security agents on the terminal devices. Finally, the talk will address some interesting questions with regard to any new technologies such as when IMS/NGN will be ready and how it is going to impact to the existing legacy telecommunications systems.
BIOGRAPHY
Dr. Fuchun Joseph Lin is a Chief Scientist in Applied Research of Telcordia Technologies (Formerly Bellcore). He has nineteen years of experience in both Bell Labs and Telcordia Technologies. He received his Ph.D. in Computer and Information Science from the Ohio State University in Columbus, Ohio and his BS and MS in Computer Science from National Chiao-Tung University in Hsinchu, Taiwan. He joined Applied Research of Telcordia Technologies in 1992 after four years of work experience at Bell Labs in the 5ESS Switching Division. At Telcordia, his initial research focus was in Intelligent Networks, especially in the areas of service creation and feature interactions. Since 1996, his focus has been in service integration and convergence for next generation all IP networks. He serves as a project manager and technical director, managing Telcordia research programs in the areas of next generation fixed/mobile networks. He served in the Telecommunications Advisory Board of Ministry of Transportation and Communications (MOTC) and also in the Technical Advisory Committee of Information and Communications Laboratories of ITRI in Taiwan. He is currently serving as a Program Committee member in the International Conference on Feature Interactions in Software and Communication Systems. He has had six patents and published more than thirty technical papers in professional conferences and journals.
- 65 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Attack Detection in Wireless Localization
Yingying (Jennifer) Chen Rutgers University and Alcatel-Lucent 101 Crawfords Corner Rd, Holmdel, NJ 07733 [email protected]
ABSTRACT
Obtaining accurate positions of nodes in wireless and sensor networks is important because the location of sensors is a critical input to location-based applications. Such services include healthcare monitoring, wildlife animal habitat tracking, emergency rescue and recovery, location-based access control, and location-aware content delivery. However, the localization infrastructure can be subjected to non-cryptographic attacks which cannot be addressed by traditional security services. In this talk, I will propose several attack detection schemes for wireless localization systems. I first formulate a theoretical foundation for the attack detection problem using statistical significance testing. Next, we define test metrics for two broad localization approaches: multilateration and signal strength. We then derived both mathematical models and analytic solutions for attack detection for any system that utilizes those approaches. Our trace-driven experimental results provide strong evidence of the effectiveness of our attack detection schemes with high detection rates and low false positive rates across both an 802.11 (WiFi) network as well as an 802.15.4 (ZigBee) network in two real office buildings. Surprisingly, we found that of the several methods we describe, all provide qualitatively similar detection rates which indicate that the different localization systems all contain similar attack detection capability.
BIOGRAPHY
Yingying (Jennifer) Chen is a Ph.D. candidate in the Computer Science Department at Rutgers University. Her research interests span wireless network and information system security, software engineering in distributed systems, as well as wireless and sensor networks. She is interested in using statistical methods and machine learning techniques to classify and model network and system problems. She is a member of Wireless Information Network Laboratory (WINLAB) at Rutgers University. Yingying is also working at Lucent Technologies as a Member of Technical Staff. She is involved in designing and developing numerous projects at Lucent Technologies, ranging from network management systems to integrating voice/data services with ATM switches.
- 66 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Mobile Digital Forensics
Yun Q. Shi New Jersey Institute of Technology Electrical and Computer Department [email protected]
ABSTRACT
When the prevalence of mobile phone with digital camera and video capability has substantially changed traditionally centralized media content creation and transportation, mobile digital forensics has been urgently called for. This talk first introduces this new situation and the relevant issues. Then, the newest development in the blind and passive image tampering detection is presented. Finally, the future research in digital data forensics is discussed.
BIOGRAPHY
Dr. Yun Qing Shi has joined the Department of Electrical and Computer Engineering at the New Jersey Institute of Technology (NJIT) since 1987, and is currently a professor there. He obtained his B.S. degree and M.S. degree from the Shanghai Jiao Tong University, Shanghai, China; his M.S. and Ph.D. degrees from the University of Pittsburgh. His research interests include visual signal processing and communications, multimedia data hiding and security, and their applications to industrial automation and biomedical engineering. Some of his research projects have been supported by several federal and New Jersey State funding agencies. He is an author/coauthor of 200 papers, one book and four book chapters in his research areas. He holds two US patents and has 20 US patents pending (among which 11 technologies have been licensed to another party by NJIT). He has been actively involved in IEEE and other professional activities. He was an IEEE Distinguished Lecturer (CASS), an Associate Editor of two IEEE Transactions (SP and CASII), and is the founding Editor-In-Chief of LNCS Transactions on Data Hiding and Multimedia Security (Springer), an editorial board member of two international journals, the chair of Technical Program Committee of IEEE International Conference on Multimedia and Expo 2007 (ICME07), the chair of Technical Program Committee of International Workshop on Digital Watermarking 2007 (IWDW07), and a fellow of IEEE.
- 67 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Network Mobility for IPv4 Private Domain Networks
Harish Viswanathan, Sampath Rangarajan, and Suman Das Alcatel-Lucent, 600 Mountain Avenue, Murray Hill, NJ 07974 [email protected]
ABSTRACT
Personal area networks and rapidly deployable emergency networks are becoming increasingly common. These networks are mobile networks in the sense that networks themselves are likely to move, i.e., their point of attachment to the wide area network may change over time. Furthermore, they are typically behind a network address translator in IPv4 networks. We consider IP layer mobility management alternatives for such mobile networks. We present different alternative architectures for placement of Mobile IP functional entities such as the home agent and foreign agent and show how mobility management can be implemented in each case and discuss the merits and demerits. We also relate our work to solutions proposed in the IETF working group on network mobility (NEMO) for IPv6 and public domain IPv4 mobility management schemes.
BIOGRAPHY
Harish Viswanathan received the B. Tech. degree from the Department of Electrical Engineering, Indian Institute of Technology, Chennai, India in 1992 and the M.S. and Ph.D. degrees from the School of Electrical Engineering, Cornell University, Ithaca, NY in 1995 and 1997, respectively. He was a recipient of the Cornell Sage Fellowship. He is currently a distinguished member of technical staff at Lucent Technologies Bell Labs, Murray Hill, NJ. His research interests include information theory, communication theory, wireless networks and signal processing.
- 68 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
WC7 − Technical Session: Mobile Networking and Security
Wireless Security Threats and countermeasures
Yih-Chen S (Steve) Wang Alcatel-Lucent 2701 Lucent Lane, Lisle, IL 60532 [email protected]
ABSTRACT
There have been increasing numbers of wireless network attacks after vast deployments of Wi-Fi for the past few years. Hackers have found many ways to attack both mobile devices and mobile systems. WiMAX is the much- anticipated broadband wireless access mechanism for delivering high-speed connectivity over long distances, and more service providers are spending huge investment to deploy it. However, there have been some security issues for WiMAX based on the recent standards. The presentations will discuss the security issues and countermeasures for both Wi-Fi and WiMAX wireless technology.
BIOGRAPHY
Dr. Steve Wang has over 23 years experience teaching computer networks and related subjects including network security in academia world. He has been also providing IP training to engineers at Alcatel Lucent Technologies. He constantly responds to telecommunication and network security issues and questions from many service providers. He has involved in building the first computer data network for AT&T Bell labs, and worked many telecommunication and networking projects within AT&T and Lucent Technologies. He holds a MS and PH.D degree in Computer Science from Illinois Institute of Technology. He was a speaker in several conferences in the areas of network management and software. He has published papers in AT&T Technical Journal. IEEE, and other journals. He was a contributor to the telecommunication and networking chapter in an Electrical Engineer handbook published in January 2006. His research focuses on telecommunication and computer networks, wireless network and security.
- 69 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS1 − Technical Session: New Services and Challenges in a Converged Network
Session Chair
Carlos Urrutia-Valdes
Bell Laboratories Alcatel-Lucent Holmdel, NJ [email protected]
BIOGRAPHY
Carlos Urrutia-Valdés is a member of the Optical and Wireless Network Modeling and Optimization group at Alcatel-Lucent Bell Laboratories in Holmdel, New Jersey. He holds a B.S. degree in Electrical Engineering from Florida International University and a M.S. degree in Computer Engineering from the University of Southern California. His current work focuses on the modeling and analysis of multimedia applications, wireless technologies and IMS networks. Carlos has published several papers on QoS in 3G networks, IMS and its service enhancement layer including an analysis of the service enabler Presence and has submitted patents on wireless backhaul optimization and next-generation applications. He has also been a speaker on IEEE East Coast Section seminars. His previous work involved the design of TDM, packet, and SS7 networks and SS7 standards development where he was the technical editor of ANSI T1.116 SS7 OMAP. His current research interests are in the areas of application and traffic modeling, and the end-to-end design of wireless and wireline networks.
- 70 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS1 − Technical Session: New Services and Challengesin a Converged Network
Convergence, IMS and Beyond
Carlos Urrutia-Valdes Bell Laboratories Alcatel-Lucent Holmdel, NJ [email protected]
ABSTRACT
Service providers around the world are already deploying or planning to deploy the IP Multimedia Sub-system (IMS) in their networks. IMS will allow the delivery of new multimedia applications aimed at enhancing the user’s experience and therefore create stickyness and generate more revenue. So now that IMS is becoming a reality, what is next for next generation networks? In this talk, the presenter will introduce a new set of services refered to as “blended” which are created by providing seamless service control across multiple network domains. The role of IMS for the enablement of wireless and wireline convergence and within the evolving area of Service Delivery Platforms will also be examined. Sample services, architectures and call flows will be presented.
BIOGRAPHY
Carlos Urrutia-Valdés is a member of the Optical and Wireless Network Modeling and Optimization group at Alcatel-Lucent Bell Laboratories in Holmdel, New Jersey. He holds a B.S. degree in Electrical Engineering from Florida International University and a M.S. degree in Computer Engineering from the University of Southern California. His current work focuses on the modeling and analysis of multimedia applications, wireless technologies and IMS networks. Carlos has published several papers on QoS in 3G networks, IMS and its service enhancement layer including an analysis of the service enabler Presence and has submitted patents on wireless backhaul optimization and next-generation applications. He has also been a speaker on IEEE East Coast Section seminars. His previous work involved the design of TDM, packet, and SS7 networks and SS7 standards development where he was the technical editor of ANSI T1.116 SS7 OMAP. His current research interests are in the areas of application and traffic modeling, and the end-to-end design of wireless and wireline networks.
- 71 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS1 − Technical Session: New Services and Challenges in a Converged Network
Redefining How People Communicate: An Overview of Tele-Presence
Franck Noel Consulting Systems Engineer Cisco [email protected]
ABSTRACT
TelePresence is a revolutionary new category of products that create live, "face-to-face" meeting experiences over an Internet Protocol (IP) network empowering users to interact and collaborate in ways they could not before. Research indicates that more than 60 percent of in-person communication is nonverbal, and yet most existing collaboration tools do not capture the nonverbal messages individuals exchange through face-to-face meetings. TelePresence solutions transform remote experiences by capturing such important interactions through a rich, high- quality experience that is almost the same as an in-person interaction, regardless of the distance between the parties. Customers have been asking for a technology solution to improve critical business relationships and "in-person" collaboration over long distances. Until recently, there was no effective way to increase the number of high-quality interactions and drive greater productivity without more travel. TelePresence has met this demand by creating a new way to meet. TelePresence solutions takes advantage of the power and intelligence of an IP network to facilitate real-time, face-to-face conversations between people around the world to simply and easily increase productivity and speed decision making.
BIOGRAPHY
Franck Noel joined Cisco systems in 1998, and currently holds the role of Consulting Systems Engineer. His focus is on VoIP services and deployments for competitive and emerging carriers. In this role, he has worked with many industry leading and revolutionary VoIP carriers, such as Vonage, iBasis, CBeyond, and British Telecom. In addition, he is one the US Theater Lead internally for the Cisco service provider Asset Team Program, which provides customer input and perspective into product engineering and marketing.
Prior to joining Cisco, Franck spent 7 years working AT&T Bell Labs. During that time, he played an instrumental role in defining requirements for the Next Generation Network Switch, and participated in SS7 standards working groups.
Franck received a BE and MS in Electrical Engineering in 1991 from the State University of New York at Stony Book. He also earned his CCNA, CCNP, and CCIP certifications.
- 72 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS1 − Technical Session: New Services and Challenges in a Converged Network
Operational Challenges of Deploying Converged Services over IP
Romel Khan Technical Manager IDT Corporation [email protected]
ABSTRACT
More & more telecommunication service providers are enabling IP in their network for the transport of voice and other media. There are many vendors that offer Voice over IP products and many open source products are widely used in this area as well. As carriers interconnect with each other, it is important to make sure that they interoperate with each other for the exchange of information over a stable & resilient IP network. This talk presents an overview of a number of operational challenges in deploying multimedia converged services over IP from a protocol (such as SIP & H323) and engineering perspective (such as, security, choice of codec, quality and economics).
BIOGRAPHY
Romel Khan has more than 12 years of experience in the Telecommunication Service provider industry. He is currently a Technical Manager in IDT. Prior to IDT, he was Director of Voice Engineering in Net2Phone and Distinguished Member of Technical Staff at Lucent & AT&T.
Dr. Khan’s work & responsibilities include Voice over IP, Multimedia over IP, IMS architecture, features/services introduction from lab to production, protocol interoperability, vendor evaluation and production optimization, design & engineering. He played an instrumental role in enabling Voice over IP services in Net2Phone using standard protocols and in interconnecting with numerous carriers with many different technology for exchange of voice traffic.
Dr. Khan has several patents in the area of SS7 and Advance Intelligent Network technology. He has a PhD in electrical engineering from State University of New York at Stony Brook.
- 73 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS1 − Technical Session: New Services and Challenges in a Converged Network
Challenges and Solutions in Applying Ad hoc and Sensor Networking for Public Safety Applications
Liang Cheng Department of Computer Science and Engineering Lehigh University 19 Memorial Drive West [email protected]
ABSTRACT
Land mobile radio (LMR) has been the mainstay of public safety agencies. Research shows that mobile ad hoc networks (MANET) can augment LMR with robust data communication, and wireless sensor networks (WSN) can enable ubiquitous monitoring for public safety applications. In this talk, I will describe our solutions for major challenges in applying ad hoc and sensor networking for public safety applications, such as disruption-tolerant networking for link disconnection, self-nomination routing for path congestion and instability, pulse-based MAC for broadcast collisions, in-network processing for energy limitation, and WSN reprogramming for code updating.
BIOGRAPHY
Liang Cheng is the Director of LONGLAB (Laboratory Of Networking Group) and an Assistant Professor of Computer Science and Engineering Department at Lehigh University. Dr. Cheng currently advises four Ph.D. students and has graduated one Ph.D. student and supervised one postdoc and one visiting scholar. He has published extensively and holds one U.S. patent in the research areas of ad hoc and sensor networks, middleware, heterogeneous networks, network processing, etc. He has been the Principal Investigator (PI) and a Co-PI of seven projects supported by the National Science Foundation (NSF), the Defense Advanced Research Projects Agency (DARPA), Pennsylvania Department of Community and Economic Development (PA-DCED), and Agere Systems, Inc. Dr. Cheng is an awardee of Christian R. & Mary F. Lindback Foundation Minority Junior Faculty Award.
- 74 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS2 − Technical Session: Network Reliability
Session Chair
Mohcene Mezhoudi
Alcatel-Lucent 101 Crawfords Corner Road Holmedl, NJ 07733 [email protected]
BIOGRAPHY
Mohcene is a Consultant Member of the Technical Staff in the Advanced Network Modeling & Optimization group at Bell Labs, Alcatel-Lucent in Holmdel, New Jersey.
His current research work is focused on next generation data and video optical network architecture, design and optimization and development of models & techniques for network growth and evolution.
Previous to Bell Labs, Mohcene was jointly managing the Optical Communications Laboratory at Stevens Institute of Technology. He led and conducted research programs for the U.S. Army CECOM on ultra-high speed optical components and systems for dual use applications. When he joined Bell Labs, Mohcene engaged in developing methods and algorithms for Robust Design and Statistical Design for the development and design of wireless and optical systems. The techniques were applied to design and develop CDMA and TDMA Base Stations, Optical Line Systems, High Power Amplifiers, Optical wavelength multiplexers/de-multiplexers and filters.
Mohcene extended his work to develop and integrate robustness and reliability advanced techniques into the design and architecture of resilient optical transport networks. The developed techniques allowed for the design and optimization of integrated multi-technology networks with multi-protection and restoration schemes, multi-QoS, and multi-SLA.
Mohcene has several publications in technical journals and conferences. Mohcene holds a MSEE and PhD in Electrical Engineering and Electro-Optics respectively, from Stevens Institute of Technologies New Jersey.
- 75 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS2 − Technical Session: Network Reliability
Metrics for Network Resilience and Robustness
Michael Tortorella Rutgers University Piscataway, NJ 08854 [email protected]
ABSTRACT
The ability of a network to continue to provide a satisfactory level of services is highly valued by service customers. Planners need tools to help them decide how networks will be designed and arranged to meet service goals, especially in times of congestion of network element failures. This talk reviews the notions of figures of merit and metrics and proposes several figures of merit and metrics encompassing layers 1, 2, 3, and 7 that give planners a clear idea of resilience and robustness. These concepts are particularly important in optical networks because of the large number of rapid rearrangements made possible by DWDM technology.
BIOGRAPHY
Dr. Tortorella is a leading communications industry expert in reliability management, engineering, modeling, and life data analysis. Over a 26-year career at Bell Laboratories he was responsible for research and implementations in fundamental system, network, and service reliability engineering methodologies as well as for management of reliability in such critical projects as the SL-280 undersea cable system, the world's first application of fiber-optic technology in an intercontinental, undersea system. He played a major role in many AT&T and Lucent product reliability studies. Formerly technical manager and a Distinguished Member of Technical Staff in the Design for Reliability Processes and Technologies Group in Bell Laboratories, Dr. Tortorella is now a research professor of industrial and systems engineering at Rutgers University. In addition to teaching courses in industrial engineering and statistics, he maintains a robust research program that includes investigations into how the stochastic flows in an IP network determine the performance and reliability of services carried on those networks, developing modeling frameworks for control of IP networks under stressed conditions, and foundational issues in queueing theory. Additional current research interests include stochastic flows, network performance, management, and control, stochastic processes and their applications to reliability, life data analysis, and next-generation networks, as well as design for reliability methods and technologies. Dr. Tortorella has published extensively in these areas. He received the Ph. D. degree in mathematics from Purdue University. He is Advisory Editor for Quality Technology and Quantitative Management, and was formerly Area Editor for Reliability Modeling and Optimization for the IIE Transactions on Reliability and Quality Engineering and was Guest Editor of a recent issue on Reliability Economics. He was also serves an Associate Editor of Naval Research Logistics and was Guest Editor for a recent issue on Computations in Networks. As a SIAM Visiting Lecturer, he has lectured extensively before undergraduate and graduate students on applications of mathematics and mathematical careers in the communications industry.
- 76 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS2 − Technical Session: Network Reliability
Probabilistic Solution Discovery for Network Reliability Optimization
Jose E. Ramirez-Marquez Stevens Institute of Technology Castle Point on Hudson Hoboken, NJ 07030 [email protected]
ABSTRACT
This presentation will discuss current research on a new algorithm that can be readily applied to solve network reliability allocation problems. The algorithm is based on two major steps that use a probabilistic solution discovery approach and Monte Carlo simulation to generate the quasi-optimal solutions. A general discussion of the algorithm and its application will be presented. The presentation will also discuss areas of application of the approach including: 1) minimization of network design cost subject to a known constraint on network reliability, 2) the orienteering problem, and 3) series-parallel system reliability optimization. Examples for different sizes of problems will be used throughout the presentation to illustrate the approach. Although originally developed for reliability optimization problems, the algorithm can be easily applied in other resource constrained allocation problems.
BIOGRAPHY
Jose E. Ramirez-Marquez is an Assistant Professor at Stevens Institute of Technology in the Department of Systems Engineering and Engineering Management. His research interests include system reliability and quality assurance, uncertainty modeling, advanced heuristics for system reliability analysis, applied probability and statistical models and, applied operations research. He has authored more than 16 articles in leading technical journals on these topics. He has conducted research for the Army Research & Development Center, HydroOne and Northrop Grumman Corp. He obtained his Ph.D. at Rutgers University in Industrial and Systems Engineering and received his B.S. degree in Actuarial Science from the UNAM in Mexico City in 1998. He also holds M.S. degrees in Industrial Engineering and Statistics from Rutgers University. He is a member of IIE, IFORS and INFORMS.
- 77 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS2 − Technical Session: Network Reliability
Developing Quantitative Reliability Roadmap to Meet Market Expectation
Xuemei Zhang Alcatel-Lucent 101 Crawfords Corner Road Holmedl, NJ 07733 [email protected]
ABSTRACT
Gaps between predicted/likely service availability of products/solutions and market’s availability expectation often arise in new products/solutions because either (1) software isn’t mature enough or (2) insufficient availability- improving features or product/solution configurations are supported. Product managers frequently have to encourage customer to buy initial/early releases of a product/solutions which doesn’t meet their reliability and availability expectations rather than waiting for a future release that is mature enough to meet those expectations. This is a key business problem. Creating highly credible, quantitative reliability roadmaps to meeting customer’s expectation can meet that business need, thus offering a clear advantage in the marketplace. Reliability roadmapping is the best practice for managing closure of an availability gap. The challenge of how to develop and manage the reliability growth using a quantitative reliability roadmap has not been discussed widely in literature. This presentation details what a reliability roadmap is, how to construct one, and how to use that roadmap to manage closure of an availability gap. A case study is discussed to demonstrate the implementation of the proposed approach.
BIOGRAPHY
Xuemei Zhang is a member of technical staff in the Alcatel-Lucent Reliability Department in Holmdel, New Jersey. Her major areas of work and research interests include system and architectural reliability, product and solution reliability modeling, field reliability analysis, software reliability, etc. . She has published more than 30 journal and conference papers in this area. She holds a Ph.D. in Industrial Engineering and an M.S. in Statistics from Rutgers University, New Brunswick, New Jersey. She has served as an international program committee member and conference session chair for many reliability and industrial engineering conferences. She has also been an active reviewer for a number of journals and conference.
- 78 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS2 − Technical Session: Network Reliability
Convergent Communications for the Olympics − Network Reliability Challenges
Spilios E. Makris Telcordia Technologies One Telcordia Drive, RRC-1C210, Piscataway, NJ 08854-4157, U.S.A. [email protected]
ABSTRACT
The grand telecom sponsors of the future Olympiads (2010 and beyond) will need to deploy standard-compliant converged networks providing convergent user-centric services for seamless delivery of multimedia applications including voice, data, and video from the venues. However, as new services are rolled out over an evolving IP- based infrastructure, service providers and their customers will be met with new risks and vulnerabilities. This presentation uses the Athens Olympics as a case study to discuss challenges and strategies for network reliability and service availability in future Olympiads.
BIOGRAPHY
Dr. Spilios Makris received his Diploma in Electrical & Mechanical Engineering, from the National Technical University of Athens, Greece; M.S. in Engineering Management from Northeastern University, Boston, and Ph.D. in Industrial Engineering & Operations Research from the University of Massachusetts at Amherst. Currently, he is with the Advanced Technology Solutions, Telcordia Technologies Inc. (formerly known as Bellcore) where he is the Director of the Olympic Program and the Network Reliability & Risk Analysis Group. Dr. Makris was Telcordia’s Program Manager for the Salt Lake City 2002 and Athens 2004 Olympic Games projects regarding the robustness and security of the Olympic networks. Over his 23 years with Telcordia, he has done a wide range of work in transmission, switching, network and operations planning with emphasis on the network integrity. His mission is to help client companies achieve a competitive advantage through improved service quality and availability. Has played a pivotal role in reliability standards for the nation and served in many ATIS Network Reliability Steering Committee (NRSC) Teams (e.g., Facility Solutions Team, Data Assembly & Analysis, Procedural Errors, CO Power). Dr. Makris has served four (4) years as Chairman (8 years as Vice Chairman) of the Standards T1A1.2 Working Group. Currently, he is the Vice-Chair of the Standards PRQC Task Force on Network Reliability.
- 79 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS3 − Technical Session: Migration to NGN and Mobile Broadband
Session Chair
Amit Mukhopadhyay
Bell Labs, Alcatel-Lucent 101 Crawfords Corner Road, Holmdel, NJ 07733 [email protected]
BIOGRAPHY
Amit Mukhopadhyay is a Distinguished Member of Technical Staff in the Network Planning, Performance and Economic Analysis Center in Bell Labs, New Jersey. His current work focuses on 3rd Generation wireless technologies, including access and core networks for UMTS/HSDPA as well as CDMA2000 1X/EVDO. His interest includes next generation technologies, e.g., HSPA/LTE-SAE, UMB, DVB-H/MediaFlo etc. He is also deeply involved in converged IMS networks with other broadband access technologies including DSL, Cable and WiFi/WiMax. For nearly ten years that he has been with the organization, he has built expertise in optimization of cost and performance for various switching, transport and signaling networks.
Prior to joining Bell Labs, he was with Ericsson in the Systems Engineering organization for more than 4 years, working on numerous system architecture and traffic engineering issues for wireless and wireline equipment. He co- authored Ericsson’s first Traffic Engineering Handbook for GSM networks.
After his undergrad degree, he worked for Oil & Natural Gas Commission, India for three years, analyzing the operations and supervising design and construction of offshore supply vessels.
He holds a B.Tech. in Naval Architecture from Indian Institute of Technology, Kharagpur, India and a Ph. D. in Operations Research from the University of Texas, Dallas. He is a Senior Member of the IEEE, Chairs the AP/EMC/VT Chapter in IEEE NJ Coast Section and has numerous publications in refereed journals.
- 80 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS3 − Technical Session: Migration to NGN and Mobile Broadband
Wireless – Wireline Convergence
Theodore (Tod) Sizer II Bell Laboratories / Alcatel-Lucent 791 Holmdel-Keyport Road Holmdel, NJ 07733 [email protected]
ABSTRACT
The rapid expansion of broadband networks to work and home together with the explosive growth of wireless cellular telephony has led, quite naturally, towards a convergence of these technologies. In this talk we will focus upon some examples of this convergence that improve the performance as well as cost of these new services.
BIOGRAPHY
Tod Sizer is Director of the Broadband Access Research Department in Bell Laboratories. His department performs research in next generation High Speed Wireless Systems, Wireline and PON systems, Wireless/Wireline convergence solutions for indoor and outdoor systems, Cognitive radio systems, Sensors and sensor networking, Novel radio designs for Government customers, and design of next generation Cellular Base Stations. During his tenure at Bell he has performed research in Wired and Wireless Home Networking, Fixed Wireless Loop systems, Video Watermarking technologies, Optical Computing and Switching Systems, and High Power Laser Design. He was a member of the Architecture board of Bluetooth and led the adaptive frequency hopping improvements leading to the Bluetooth 2.0 standard. Tod graduated from Amherst College, Magna Cum Laude and received his Masters and Doctorate from the Institute of Optics at the University of Rochester where he worked in the National Laser Fusion Facility. He is the author of over 40 US patents, many patents pending and over 50 refereed publications.
- 81 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS3 − Technical Session: Migration to NGN and Mobile Broadband
RF Radiation – Environmental Effects
K.Raghunandan New York City Transit 2, Broadway, New York, NY 10004 [email protected]
ABSTRACT
RF radiation has been in our environment since the beginning of the 20th century. However, public concerns regarding RF radiation started with the appearance of cellular phone towers in our neighborhood. This talk focuses on the scientific approach to this rather controversial topic. It provides a logical approach and guidelines to Engineers and professionals so that the concerns can be addressed using real numbers rather than emotions.
The talk begins with a background of the physical phenomenon of radation in various bands and provides references to the studies on both personal devices (cell phones, PDA and other proximity devices) as well as communication towers.
Everyone who uses wireless technology will benefit from this talk.
BIOGRAPHY
K. Raghunandan worked in the Indian Space Research Organization from 1977 till 1987. From 1987 to 1992 he worked on a European Space Agency project in England. He worked in Bell Labs, Lucent Technologies from 1993 till 2004. Since 2004, he works for New York City Transit, in the Communication wireless department. Raghu has worked in the field of wireless communications specializing in TDMA, CDMA, Satellite Digital Audio Radio Systems, as well as Access systems and other communication technologies. In 2005 he was granted a US patent in wireless and cable integrated access network. Raghu received the bachelors’ degree in Electronic engineering from the University of Mysore (1974), Masters degree from IIT, Kharagpur (1982) and Research degree from the University of Surrey, England (1992). Raghu has several international publications in IEEE conferences and journals. He has also delivered lectures at several universities in USA, UK, Malaysia and India.
- 82 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS3 − Technical Session: Migration to NGN and Mobile Broadband
Mobile WiMax in Next Generation Networks
Zulfiquar Sayeed Bell Labs, Alcatel-Lucent 101 Crawfords Corner Road, Holmdel, NJ 07733 [email protected]
ABSTRACT
Mobile WiMAX technology is fast approaching full commercial reality around the world and is being deployed presently in the US with Korea already boasting their WiBro network. In this talk we take a look at the Network Architecture, underlying air interface, Characteristics of OFDM and Scalable OFDMA, Roaming and network procedures facilitating roaming. Since WiMAX follows the 3GPP and 3GPP2 in deployment special consideration is given to the network interactions necessary to interact between such networks with WiMAX. A detailed look at the IEEE 802.16E standard and the adoption of the WiMAX forums are compared in order to gather an understanding of the commercial market place dynamics of the technology. Finally a brief introduction is given to the deployment of WiMAX in Public Safety First Responder networks with issues that must be resolved before such deployments may be made possible.
BIOGRAPHY
Zulfiquar Sayeed has been with Bell Labs, Alcatel-Lucent since 1997. He has worked in the field of wireless communications specializing in CDMA, OFDM, Satellite Digital Audio Radio Systems, Soft Modems, and various other communication technologies. He holds eleven US patents in the above fields, and has nine more pending with the USPTO. His patents span the areas of the air interface design, backhaul network planning, and statistical multiplexing enablement. He has been a member of the Wireless Network Planning and Optimization group and specializes in the design of wireless networks including the Access and the Core networks. He is presently working on Public Safety networks researching on commercial broadband technologies (CDMA, WiMAX) for jurisdictional and incidence area networks. He was the primary algorithm developer of the terrestrial OFDM signal and repeater design for the Satellite Digital Audio Radio System (Sirius Satellite Radio) that is now commercially fully operational across the continental United States. Zulfiquar Sayeed received his PhD from the University of Pennsylvania (U-PENN) in 1996. He received his Bachelors in Science from the CalTech in 1990 in Electrical Engineering (with Honor). Zulfiquar He has served as an Adjunct Professor at the University of Pennsylvania and NJIT. He has formerly held internships at the Jet Propulsion Laboratories, NASA and ATT Research. He enjoys teaching and has done so for several international organizations.
- 83 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS3 − Technical Session: Migration to NGN and Mobile Broadband
On TCP-Jersey
Nirwan Ansari Department of Electrical and Computer Engineering New Jersey Institute of Technology Newark, NJ 07102, USA [email protected]
ABSTRACT
TCP has become the de facto congestion control standard used in most applications. It was originally designed primarily for the wired networks in which, random bit errors, a characteristic usually exhibited in the wireless network, are negligible, and congestion is the main cause of packet loss. The emerging wireless applications call for a calibration of this congestion control standard for the heterogeneous network environment, the dominant form of next generation networks. In this talk, following a brief introduction to TCP, I will analyze the problems that stock TCP experiences in the wireless IP communication environment, and illustrate various viable strategies. In particular, I will discuss in details our recent proposal, TCP-Jersey, which has received much attention since its publication. TCP-Jersey is a simple and effective end-to-end solution, which can be readily implemented by the sender side with minimum computational overhead and with complete compatibility with the current unmodified versions of TCP, though it requires a simple active queue management (AQM) support. It can differentiate congestion and non- congestion induced packet losses, and does not require any wireless-specific or wireless-aware routers.
BIOGRAPHY
Nirwan Ansari received the B.S.E.E. (summa cum laude) from the New Jersey Institute of Technology (NJIT), Newark, in 1982, the M.S.E.E. degree from University of Michigan, Ann Arbor, in 1983, and the Ph.D. degree from Purdue University, West Lafayette, IN, in 1988.
He joined NJIT’s Department of Electrical and Computer Engineering as Assistant Professor in 1988, and has been Full Professor since 1997. He has also assumed various administrative positions including the recent appointment as the Newark College of Engineering’s Associate Dean for Research and Graduate Studies at NJIT. He authored Computational Intelligence for Optimization (Springer, 1997, translated into Chinese in 2000) with E.S.H. Hou, and edited Neural Networks in Telecommunications (Springer, 1994) with B. Yuhas. His current research focuses on various aspects of broadband networks and multimedia communications. He has also contributed over 270 technical papers including 100 refereed journal/magazine articles.
He is a Senior Technical Editor of the IEEE Communications Magazine, and also serves on the editorial board of Computer Communications, the ETRI Journal, and the Journal of Computing and Information Technology. He was the founding general chair of the First IEEE International Conference on Information Technology: Research and Education (ITRE2003), was instrumental, while serving as its Chapter Chair, in rejuvenating the North Jersey Chapter of the IEEE Communications Society which received the 1996 Chapter of the Year Award and a 2003 Chapter Achievement Award, served as Chair of the IEEE North Jersey Section and in the IEEE Region 1 Board of Governors during 2001-2002, and has been serving in various IEEE committees such as Vice-Chair of IEEE COMSOC Technical Committee on Ad Hoc and Sensor Networks, and (TPC) Chair/Vice-chair of several conferences/symposia. He has been frequently invited to deliver keynote addresses, distinguished lectures, tutorials, and talks. His awards and recognitions include the NJIT Excellence Teaching Award in Graduate Instruction (1998), IEEE Region 1 Award (1999), and designation as an IEEE Communications Society Distinguished Lecturer.
- 84 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS4 − Technical Session: Network Planning, Design Methods and Tools
Session Chair
Ben Tang
Bell Laboratories, Alcatel-Lucent 101 Crawfords Corner Road, Holmdel, NJ07733 [email protected]
BIOGRAPHY
Dr. Ben Tang is a distinguished member of technical staff in the Network Modeling and Optimization Group at Bell Laboratories, Holmdel, New Jersey.
He joined AT&T Bell Labs in 1991 at Indian Hills, IL working on software development of ISDN trunk maintenance for 5ESS. He moved to Holmdel, NJ in 1992 and spent four years on the development of intelligent mathematical algorithms and object-oriented programming (C/C++) for an advanced decision support system built for airline companies. From 1996 on, he has been working on network planning, design and development of end-to-end network solutions.
Currently, Dr. Tang’s work focuses on all aspects of data networking (IP/MPLS, Ethernet, NG BRAS, IPv6), including architecture and solution development, consulting, network design and optimization, evolution planning and economic analysis. He also works on end-to-end network modeling, design and evolution planning for IMS and NGN. In particular, he has been extensively involved in Bell Labs network architecture and modeling work for China and Asia Pacific.
Dr. Tang has also worked on the development of IP/MPLS network design and optimization methods and tools to enhance network efficiency and reduce cost for service providers. These methods and tools are used to create professional service opportunities and support service delivery by the Alcatel-Lucent’s service organization.
Dr. Tang has a B.S. degree from the National Taiwan University, M.S. from the University of Florida, and Ph.D. from Purdue University, all in electrical engineering. He was invited as a member of Telecommunication Advisory Board (TAB) for the Ministry of Transportation and Communications (MOTC), Republic of China, in 1999.
- 85 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS4 − Technical Session: Network Planning, Design Methods and Tools
Large Network Design
Yung Yu AT&T Labs 200 Laurel Ave., Room C4-3Z01, Middletown, NJ 07748 [email protected]
ABSTRACT
Internet has become part of everyone’s daily life with the traffic volume explores exponentially. An Internet Service Provider (ISP) network architecture must be able to support the growth of customers as well as the traffic volume. This talk will review some network design options in both physical and logical components of a network.
BIOGRAPHY
Yung got his M. S. in Computer Science from University of Southwestern Louisiana. He joined AT&T Bell Labs in 1989 until now. Since he joined AT&T, he has been working on several major projects such as 5ESS and OSI X.500 development. Started from 1991, he was a member of small architectural team for AT&T’s flagship IP networks, Common BackBone (CBB). The work included network topology, OSPF and BGP design. As AT&T acquired other companies, Yung played major role in the network integrations. Yung kept looking into new platforms and technologies as the network evolved. Recently, Yung has been working on network security, AT&T/SBC/BellSouth/Cingular integration work.
- 86 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS4 − Technical Session: Network Planning, Design Methods and Tools
Cross-Technology Planning Platform for Wireless Carriers
Weiping Wang VPIsystems Inc 943 Holmdel Rd, Holmdel NJ 07733 [email protected]
ABSTRACT
One of the biggest cost challenges facing wireless service providers today is the backhaul network. The backhaul infrastructure, whether it consists of leased lines, point-to-point microwave, IP pipes, or owned transmission network – is very expensive to maintain and difficult to scale.
Managing the backhaul has becomes even more critical as high-speed data services are launched. CDMA 1X Services such as Blackberry or SpeedTalk and those associated with the upcoming EV-DO rollout are forcing mobile operators to double the backhaul capacity at some cell sites – as well as forcing the introduction of IP into the backhaul.
These challenges make the design of today’s 3G wireless networks even more important, but also significantly more complex and risky. VPIsystems developed an innovative network design software solution that reduces the cost of backhaul through network optimization. The solution will focus on how the practice of network planning and design can be improved to reduce the cost of existing and next generation wireless backhaul networks, irrespective of what technology or vendor is used in the backhaul.
BIOGRAPHY
Weiping got his Computer Engineering M.S. from Clemson University, and spent 3 years at University of Pittsburgh in Information Science department. He joined Bell Laboratories as a Member of Technical Staff in 1998, and joined VPIsystems in 2001. Currently he is senior director of VPIsystems responsible for the global sales engineering team.
VPIsystems is the only provider of integrated capacity and network planning software and services for the global telecommunications industry. The company's OnePlanTM software system gives telecommunications and multi- service providers the ability to cohesively plan the financial, technical and marketing aspects of their network evolution, for all current and future network types. Headquartered in Holmdel, NJ, and with offices in Europe, Asia, and Australia, VPIsystems' software is used by over 150 communications service providers and network equipment manufacturers to assess current and future capacity needs, and optimally plan their QoS-constrained service networks and underlying transport infrastructure.
- 87 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS4 − Technical Session: Network Planning, Design Methods and Tools
A Management Strategy for MPLS-TE Networks
Tony Lin WANDL, Inc. 88 Centennial Avenue Piscataway, NJ 08854 732-457-8888 ext.264 [email protected]
ABSTRACT
The life cycle for deploying an MPLS network encompasses many steps which usually rely on disparate tools and systems. Challenges are encountered in dealing with various stages of network planning, design, deployment, operations, and post deployment audit. To cope with these complex tasks, we present a cohesive approach to help optimize the process and maximize efficiency.
The Next Generation OSS dictates seamless interactions among systems, while addressing a variety of functional requirements. By sourcing a common data set, the burdens of complex integrations and data correlation are mitigated. For this reason, WANDL has developed a single integrated platform (IP/MPLSView) based on a sophisticated engine that addresses network data collection, intelligent network parsing, network modeling and traffic routing. This design approach assures that the network and service topology view remains aligned with the live network configuration.
IP/MPLSView complements the following workflow associated with the network life cycle management of MPLS networks:
1. Inception: Network planning, engineering and design provide the initial MPLS tunnels design output taking into account constraints such as cost, performance, reliability, and protection.
2. Deployment: Robust design capabilities produce the necessary configuration statements (e.g. for TE or FRR) ready to be pushed into network routers.
3. Operations: Real-time network management capability provides automatic discovery of the physical and logical infrastructure, including multi-protocol views & tunnel visualizations.
4. Post-Deployment: Continuous network performance improvement is achieved through capacity planning, "what- if" failure simulations, and network auditing. Tools such as tunnel sizing and network grooming helps users to effectively management the growth and change of their MPLS networks.
BIOGRAPHY
Tony Lin is a Systems Engineer actively involved in the design, testing, and deployment of WANDL’s IP/MPLSView product suite. His knowledge of IP/MPLS technologies has enabled him to help customers meet their network design, management, and optimization objectives. Tony holds a B.S. in E.E. and an M.S. in Telecommunications and Networking.
- 88 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS4 − Technical Session: Network Planning, Design Methods and Tools
Wireless Backhaul Transport Cost Reduction Strategies
Ying Hu, Mohcene Mezhoudi, Vijaya Poudyal Alcatel-Lucent Crawford Corner Road, Holmdel, New Jersey, USA [email protected]
ABSTRACT
As mobile network data and video service usage increases the transmission capacity required to provide good quality of service will go up and it becomes increasingly important to use efficient low cost backhaul transport. Most wireless carriers lease T1s/E1s1 and T3/E32 from an infrastructure provider to create their backhaul networks. Leasing creates a significant recurring expense for the wireless carrier. Reduction in backhaul operating and capital expense can have a significant impact since it is a significant fraction of the total cost. One familiar method to reduce recurring leasing costs is to aggregate T1s and transport them over higher capacity T3. Leasing a combination of T1s and T3s has the potential to reduce recurring cost since the per unit cost of the higher capacity T3 is lower than that of the lower capacity T1 connection. Another way to reduce operating expenses is to build your own private transmission infrastructure. Although building requires higher initial investment than leasing the initial expense is usually recovered over a number of years because recurring leasing expenses are avoided. While using aggregation and network builds to reduce transport costs is a classic strategy it is still a challenge to determine the optimal architecture (E.g., the number aggregation sites, their exact locations, the specific T1s to aggregate, and the architecture of the private infrastructure, etc) that minimizes costs under real world constraints for a specific service area. Multiplexing equipment initial and recurring costs, fiber build and maintenance costs, T1 leasing costs and tariff structure, transport network architecture (tree or ring or combination) all have to be incorporated to determine the most cost effective solution. Such optimization is expected to have the greatest impact on large Tier 1 or 2 operators that could have hundreds of wireless cell sites in just one city and numerous service areas.
In this talk, we discuss a methodology to reduce wireless backhaul network expenses. Several key optimization steps involved will be described. The optimal solution depends on many factors including distance dependent leasing costs, BTS-to-MSC distance distribution, optical transmission equipment costs, and number of T1s per BTS site. Some sensitivity analysis results will also be presented. A real wireless carrier service area consisting of 390 BTS sites serviced by one MSC site and five year traffic forecasts was used to verify the methodology. The optimal backhaul architecture for this specific service area had a hybrid lease and build design.
BIOGRAPHY
V. Poudyal received the M.E. and Ph.D. degrees in electrical engingeering from Stevens Institute of Technology, Hoboken, NJ. He was formerly a Senior Systems Engineer at Telcordia Technologies, Inc., Piscataway, NJ and a Lecturer of electrical engineering at the Institute of Engineering, Kathmandu, Nepal. He has also advised local government agencies on various communications technology issues. He is currently a Network Design Engineer working for the Optical Networking Groupe of Alcatel-Lucent, Holmdel, NJ. For the past 10 years, he has been working on various aspects of optical networking, including SONET and DWDM network design, DWDM equipment specifications and standards, metropolitan and ultra long haul network design. His current research is on multilayer and mulitperiod network optimization techniques and tools.
1 T1 is used in the remainder to refer to these alternatives. 2 T3 is used in the remainder to refer to these alternatives.
- 89 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS5 − Technical Session: Emerging and Innovative Technologies
Session Chair
Dong Sun
Bell Laboratories, Alcatel-Lucent [email protected]
BIOGRAPHY
Dong Sun is a Member of Technical Staff in the Network Performance and Reliability Department at Bell Laboratories – Research of Alcatel-Lucent. He holds a Ph. D. in electrical engineering from Stevens Institute of Technology in Hoboken, New Jersey.
Dr. Sun’s research interests include wireline and wireless network architecture, service/network/fixed mobile convergence, network design, optimization, and engineering. His current work focuses on research, strategy and standardization of NGN/IMS architecture, QoS, policy control & resource management architecture, key mechanisms and solutions. He is actively participating in pertinent SDOs’ activities including CableLabs, ETSI TISPAN, ITU-T NGN, IETF, IPsphere etc as contributor and serves as the editor of ITU-T NGN Y.2111 (Y.RACF) and other standard specifications, and works with CTO and business unit on the relevant resource management product development. He also has broad experience spanning from data to mobile networking technologies in network architecture, evolution and solutions, as well as SIP and VoIP technologies, xDSL/xPON and Cable broadband access networking technologies, ATM and IP/MPLS data network planning, design and optimization, and 3G UMTS/CDMA/WLAN wireless network architecture, modeling and cost analysis. He is a senior member of the IEEE.
- 90 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS5 − Technical Session: Emerging and Innovative Technologies
Convergence of Policy based Resource Management Framework in Next Generation Networks
Dong Sun, Ph.D. Bell Laboratories, Alcatel-Lucent [email protected]
ABSTRACT
Telecommunication operators are increasingly evolving their diverse networks to common IP-based Next Generation Networks (NGN). As the industry moves to the NGN, it is faced with several challenges from a resource management perspective. The first challenge is the diversity of potential applications and isolating these applications from the details of the various fixed and wireless networks and technologies, in order to offer customized and ubiquitous services for end users. Second, the growing interest in bandwidth hungry and QoS sensitive applications, such as IPTV/Video on Demand (VoD) and online gaming etc., requires effective resource management to maintain quality. Finally, telecom operators are also looking to more effectively monetize the investment in their infrastructure. There is growing interest in a service and network policy driven framework for managing resources in order to provide more customized and optimized user experience as well as grow operator revenues. This talk reviews the relevant standards in 3GPP/PP2, CableLabs, DSL Forum, ETSI TISPAN, ITU-T and WiMAX Forum, discusses the challenges and requirements, and presents a framework of resource management to make the transport networks and technologies transparent to application control systems but still provide end-to-end consistent QoS and service assurance. The rationale, key elements and mechanisms are described, and example implementation architecture is illustrated. Opportunities for new revenue generating services for telecom operators using this framework are also addressed.
BIOGRAPHY
Dong Sun is a Member of Technical Staff in the Network Performance and Reliability Department at Bell Laboratories – Research of Alcatel-Lucent. He holds a Ph. D. in electrical engineering from Stevens Institute of Technology in Hoboken, New Jersey.
Dr. Sun’s research interests include wireline and wireless network architecture, service/network/fixed mobile convergence, network design, optimization, and engineering. His current work focuses on research, strategy and standardization of NGN/IMS architecture, QoS, policy control & resource management architecture, key mechanisms and solutions. He is actively participating in pertinent SDOs’ activities including CableLabs, ETSI TISPAN, ITU-T NGN, IETF, IPsphere etc as contributor and serves as the editor of ITU-T NGN Y.2111 (Y.RACF) and other standard specifications, and works with CTO and business unit on the relevant resource management product development. He also has broad experience spanning from data to mobile networking technologies in network architecture, evolution and solutions, as well as SIP and VoIP technologies, xDSL/xPON and Cable broadband access networking technologies, ATM and IP/MPLS data network planning, design and optimization, and 3G UMTS/CDMA/WLAN wireless network architecture, modeling and cost analysis. He is a senior member of the IEEE.
- 91 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS5 − Technical Session: Emerging and Innovative Technologies
Enhancing the Internet Survivability using IP Fast Rerouting
Kang Xi Dept. of Electrical and Computer Engineering Polytechnic University 6 Metrotech Center, Brooklyn, NY 11201 [email protected]
ABSTRACT
Failure recovery in IP networks is critical to high quality service provisioning. Typical approaches for failure recovery include route recalculation and lower layer protection. Route recalculation, although effective, could take a long time to complete, which leads to considerable service disruption. Lower layer protection completes recovery within tens of milliseconds. However, it usually requires much bandwidth redundancy and maintenance complexity.
Performing failure recovery using IP fast rerouting (IPFRR) has gained much attention recently. The basic idea of IPFRR is to let a router maintain a backup port for each destination and use it to forward packets when the primary port fails. Since the backup ports are calculated in advance and do not occupy redundant bandwidth, IPFRR achieves fast failure recovery with great cost-efficiency. We will explain the principle of IPFRR and its implementation in detail and present our recent research progress on this topic.
BIOGRAPHY
Kang Xi is an industry assistant professor in the Dept. of Electrical and Computer Engineering, Polytechnic University, Brooklyn, NY. His research interests include routing, network survivability, switching, and optical network design. Before joining Polytechnic University in 2005, he was a senior researcher at Osaka University, Osaka, Japan from 2003 to 2004. Kang Xi got his BS, MS and Ph.D. in Electronic Engineering from Tsinghua University, Beijing, China in 1998, 2000 and 2003, respectively. He has four years of experience in FPGA design, Ethernet over SONET design and network planning.
- 92 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS5 − Technical Session: Emerging and Innovative Technologies
Ferry-based Intrusion Detection and Mitigation Schemes for Sparsely Connected Adhoc Networks
Dr. Mooi Choo Chuah Associate Professor Lehigh University 19, Memorial Drive West, Bethlehem, PA 18015 [email protected]
ABSTRACT
An ad hoc wireless network is a self-organizing network consisting of mobile nodes that can communicate with one another via intermediate nodes. On demand routing protocols are commonly used in ad hoc wireless networks to establish the routing paths between a source-destination pair. However, there are scenarios where the ad hoc networks can be sparsely connected e.g. in battlefield scenarios, in vehicular ad hoc networks. Traditional adhoc routing protocols do not work well in such environments. Thus, recently new stored-and-forward architecture called disruption tolerant network (DTN) architecture has been proposed to deal with such challenging network environments and new routing schemes have been proposed for such sparsely connected adhoc networks. Since message delivery relies on the cooperation of neighboring nodes, such networks are subjected to selective dropping attacks by malicious nodes. In this talk, we first discuss existing techniques that are used to deal with selective dropping attacks in well connected adhoc networks. Then, we discuss why such existing security techniques are not suitable for sparsely connected adhoc networks. Next, we describe a category of ferry-based intrusion detection and mitigation schemes that have been designed to deal with selective dropping attacks in sparsely connected adhoc networks. We will also present some simulation results that show that this category of ferry-based intrusion detection and mitigation schemes is very promising in reducing the impact of selective dropping attacks.
BIOGRAPHY
Dr. Mooi Choo Chuah is currently an associate professor in Computer Science & Engineering Department at Lehigh University. Prior to joining Lehigh, she was a Technical Manager at Bell Laboratories, Lucent Technologies where she spent 12 years conducting researches related to third generation wireless systems, resource management, mobility management design and network security topics. She has been awarded 43 US patents, one Canadian patent, and has 12 more pending in various areas e.g. wireless MAC, IP protocol design, mobility management, future wireless system design etc. Her current research interests include system and protocol design for disruption tolerant networks, adhoc/sensor network design, future internet routing design and network security.
- 93 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
NS5 − Technical Session: Emerging and Innovative Technologies
A New Radio Channel Allocation Strategy for APs of WLANs with Power Control
Ming Yu Dept. of Electrical and Computer Engineering Florida State University 2525 Pottsdamer St, Tallahassee, FL 32310 [email protected]
ABSTRACT
For IEEE 802.11 wireless LANs (WLAN) with multiple access points (AP), it is critical to allocate the limited number of radio channels dynamically and efficiently.
This talk presents a new framework for the radio channel allocation (RCA) strategy for WLANs with multiple data rates to support multimedia traffic. First, we formulate the RCA as a min-max optimization problem regarding channel utilization with constraints of transmitting power and date rates. Second, we derive an expression to evaluate the channel utilization, which incorporates the condition of wireless channel, such as signal-to-noise (SNR) ratio and transmitting power, in addition to the transmitting probability of a station. Third, we propose a new RCA algorithm that considers both link adaptation and power control mechanisms, in addition to the impact of co-channel interference (CCI) and multiple date rates, which have not been considered by the existing RCA schemes.
Simulation results have demonstrated the effectiveness of the proposed strategy.
BIOGRAPHY
Ming Yu received his Doctor of Engineering from Tsinghua University, Beijing, in 1994, and Ph.D. from Rutgers University, New Brunswick, NJ, in 2002, all in Electrical and Computer Engineering. He is an assistant professor with the Department of Electrical and Computer Engineering, Florida A&M University (FAMU) and Florida State University (FSU) College of Engineering, Tallahassee, FL, since August 2006. Before that he was with the Department of Electrical and Computer Engineering, State University of New York at Binghamton for three years and with AT&T Labs, Middletown, NJ and other companies for six years. His research interests are MAC and routing protocols for wireless networks, radio resource management, network traffic modeling, and network fault management.
Ming Yu has served as NSF IT Research Panelist 2004 and NSF Cyber Trust Panelist 2005. He has been reviewer for IEEE/ACM Trans. on Networking, IEEE Trans. on Communications, IEEE Trans. on Wireless Communications, IEEE Trans. on Mobile Computing, IEEE Trans. on Antenna and Propagations, IEEE GLOBECOM, ICC, WCNC, and other conferences. He was the financial chair of the 2006 IEEE IWAT and TPC members and session chairs for many IEEE conferences. Recently, he serves as a guest editor for a special issue of the Int. Journal of Wireless and Mobile Computing. He is a senior member of the IEEE. He was a winner of the IEEE Millennium Medal awarded by the IEEE USA on May 2000.
- 94 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM1 − Technical Session: P2P Technology and Its Applications
Session Chairs
Yang Guo
Thomson Corporate Research 2 Independence Way, Princeton, NJ 08540 [email protected]
BIOGRAPHY
Dr. Yang Guo received his B.A. and M.S. degree from Shanghai Jiao Tong University, and his Ph.D. degree in Electrical and Computer Engineering from University of Massachusetts at Amherst in 2000. He is currently a member of technical staff at Thomson Corporate Research, Princeton, NJ. His research interests include peer-to-peer networking and content distribution, media streaming, real-time system, and network modeling and performance evaluation. He is a member of ACM and IEEE.
Yong Liu
Polytechnic University 5 MetroTech Center, LC 258 Brooklyn, NY, 11201 [email protected]
BIOGRAPHY
Dr. Yong Liu graduated with Ph.D degree from University of Massachusetts, Amherst in 2002. He worked as a Postdoc in computer networks research group at UMass from February 2002 to February 2005. He joined ECE department of Polytechnic University as an assistant professor in March 2005. His current research interest includes: overlay/P2P networks, network measurement and robust network design. More information about his research and teaching is available at: http://eeweb.poly.edu/faculty/yongliu/
- 95 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM1 − Technical Session: P2P Technology and Its Applications
Content Security in P2P Networks
Heather Yu Princeton Fuel Research Princeton, NJ [email protected]
ABSTRACT
In the past several years, "P2P" has become a media buzz word. The growth of peer-to-peer (P2P) based applications is enormous, which has also fueled academic research. Today, more than 50% of Internet traffic is due to P2P applications. Despite many successful stories, a majority of P2P systems are vulnerable to exploitation. In recent years, much of the attention also has been focused on copyright issues of shared content in early P2P systems. This talk addresses the challenges of content security in P2P networks and presents some of our recent research works in P2P content security.
BIOGRAPHY
Heather Yu received her B.S. degree from Peking University, her M.A. and Ph.D. degrees from Princeton University all in Electrical Engineering. In 1998, she joined Panasonic where her major research interests are in the multimedia communication and multimedia information access R&D areas. She published 1 book, 5 book chapters, and more than 60 technical papers and holds 21 US patents in the multimedia communications and multimedia information access areas.
Currently, she serves as Associate Editor-in-Chief for the Peer-to-peer Networking and Applications Journal, Secretary of IEEE Communications Society Peer-to-peer communications and networking sub-committee, voting member of IEEE Communications Society Strategic Planning Committee and Emerging Technologies Committee, and Executive Member of IEEE New Technologies Directions Committee Portable Information Devices Group. She also serves as Editor for ACM Computers in Entertainment, IEEE Multimedia Magazine, International Journal on Semantic Computing, and Telecommunication Systems Journal, Conference Steering Committee Member of IEEE ICME and IEEE CCNC, Technical Program Co-chair of IEEE International Conference on Semantic Computing 2007 and IEEE ICC 2007 Multimedia Communications and Home Services Symposium. From 1998-2006, she served as conference technical program chair, associate chair, session chair, technical committee member, best paper award committee member, keynote speaker, panelist, panel chair, and steering committee member for various conferences.
- 96 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM1 − Technical Session: P2P Technology and Its Applications
Efficient Substream Encoding and Transmission for P2P Video on Demand
Zhengye Liu Electrical and Computer Engineering, Polytechnic University Brooklyn, NY11201, USA [email protected]
ABSTRACT
In a P2P VoD system, the rate at which peers receive video fluctuates due to peer churn. Although scalable video coding has the potential to adapt to long-term rate variations, existing scalable video schemes have not been tailored for P2P systems for which substreams emanate from churning peers. In this paper we propose a new multi-stream coding and transmission scheme, Redundancy-Free Multiple Description (RFMD) Coding and Transmission, that has been designed for P2P VoD systems. Unlike layered video, with RFMD all substreams have equal importance. Thus, video quality gracefully degrades as substreams are lost, independently of which particular substreams are lost. Furthermore, only the source bits are collectively transmitted by the supplying peers. Thus, all transmitted bits contribute to improve video quality. Finally, RFMD can be used to create any number of descriptions. We prove that RFMD can minimize the average video distortion of the system, and under certain circumstances, it achieves the minimum storage usage. Furthermore, we conduct an extensive simulation study, comparing single layer coding with high-rate erasure codes, layered coding, MD-FEC and RFMD. The simulations show that RFMD performs best in a variety of representative scenarios.
BIOGRAPHY
Zhengye Liu received the B.Eng. and M. Eng degrees from Tsinghua University, Beijing, China, in 2000 and 2003 respectively, all in electrical engineering. From 2004, he joined in the image processing group in Polytechnic University, Brooklyn, U.S., to pursue the Ph.D. degree. From June 2005 to August 2005, he was an intern in Corporate Research, Thomson Inc., New Jersey. His research interests are video compression, video transmission over P2P networks, and video transmission over wireless networks.
- 97 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM1 − Technical Session: P2P Technology and Its Applications
Peer-to-Peer Video Streaming: Successes and Limitations
Yong Liu Polytechnic University 5 MetroTech Center, LC 258 Brooklyn, NY, 11201 [email protected]
ABSTRACT
Recently, several Peer-to-Peer (P2P) streaming systems have been widely deployed to provide live streaming in the Internet at low cost. In order to gain insight into P2P streaming systems and the traffic loads they place on ISPs, we have undertaken an in-depth measurement study of one of the most popular systems, namely, PPLive. The results obtained through both passive and active measurement bring important insights into P2P streaming user behavior, traffic load, peer partnership characteristics, user viewing quality, and P2P streaming system design principles.
The popularity of P2P streaming systems calls for theoretic studies that expose the fundamental characteristics and limitations of such systems. We develop a simple stochastic fluid model that accounts for many of the essential features of a P2P streaming system, including the peers' real-time demand for content, peer churn (peers joining and leaving), peers with heterogeneous upload capacity, limited infrastructure capacity, and peer buffering and playback delay. The model captures several major factors that determine a P2P streaming system's performance: uploading/downloading capacity ratio, user population and media playback delay. Our study provides guidelines for the design of new P2P streaming systems.
BIOGRAPHY
Dr. Yong Liu graduated with Ph.D degree from University of Massachusetts, Amherst in 2002. He worked as a Postdoc in computer networks research group at UMass from February 2002 to February 2005. He joined ECE department of Polytechnic University as an assistant professor in March 2005. His current research interest includes: overlay/P2P networks, network measurement and robust network design. More information about his research and teaching is available at: http://eeweb.poly.edu/faculty/yongliu/
- 98 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM1 − Technical Session: P2P Technology and Its Applications
QoS Aware Peer-to-Peer Video-on-Demand Service
Yang Guo Thomson Corporate Research 2 Independence Way, Princeton, NJ 08540 [email protected]
ABSTRACT
Providing video-on-demand service (VoD) over the Internet is challenging due to stringent QoS requirements. In this talk, we present PONDER, a QoS aware Peer-to-peer video-ON-DEmand seRvice that is capable of providing high quality VoD yet is much more scalable than traditional server-client VoD service. PONDER incorporates the mesh-based p2p downloading into the server-client video-on-demand. The p2p downloading serves a significant portion of data thereby reducing the load on the server. Meanwhile, the server devotes its resources to offering viewers instantaneous playback and urgent data to meet the QoS requirement. The viewing experience at the client end is comparable to the one offered by the server-client service model. We develop a set of devices to make the design feasible in practice. Simulation results show that PONDER increases the number of admitted clients by a factor of 3.7 when the average client uplink bandwidth is 80% of the video playback rate; and achieves improvement by a factor of more than 15 folders when the average uplink bandwidth is greater than or equal to the playback rate. Users' viewing quality in PONDER is comparable to the one offered by unicast with tiny fraction of video data missing the playback time (< 0.2%).
BIOGRAPHY
Dr. Yang Guo received his B.A. and M.S. degree from Shanghai Jiao Tong University, and his Ph.D. degree in Electrical and Computer Engineering from University of Massachusetts at Amherst in 2000. He is currently a member of technical staff at Thomson Corporate Research, Princeton, NJ. His research interests include peer-to-peer networking and content distribution, media streaming, real-time system, and network modeling and performance evaluation. He is a member of ACM and IEEE.
- 99 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
Session Chair
Zhen Wen
IBM T. J. Watson Research 19 Skyline Dr, Hawthorne, NY 10514, USA [email protected]
BIOGRAPHY
Zhen Wen is research staff member at IBM T. J. Watson Research Center. His research interests include visualization, computer graphics, machine learning, pattern recognition and multimedia systems. Zhen received PhD degree in computer science from Univ. of Illinois at Urbana-Champaign. His thesis work was on human video analysis for intelligent human computer interaction and activity monitoring. At IBM, Zhen's current research focuses on adaptive context-sensitive user interfaces for information analysis such as business intelligence. Specifically, he has worked on information retrieval adapted to task contexts and user interactions; smart graphics generation for dynamic visual analytic. Zhen's work has been filed as three patents and has been published in leading conferences and journals in multimedia, pattern recognition and user interfaces, such as ACM Multimedia, CVPR, InfoVis and Intelligent User Interfaces (IUI). Zhen's work received a best paper award at IUI 2005, an IBM Research Division Award and an IBM invention award in 2005. Zhen serves on technical committees for major conferences such as ACM Multimedia, IEEE Multimedia.
- 100 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
Context-aware User Interfaces for Information Seeking
Zhen Wen IBM T. J. Watson Research 19 Skyline Dr, Hawthorne, NY 10514, USA [email protected]
ABSTRACT
Imagine the next generation of multimedia information portals, where users are able to obtain information through an intelligent multimodal interaction that is tailored to the tasks you are performing, and adapted to your context and interaction devices. To realize this vision, we are building an infrastructure, called Responsive Information Architect (RIA), which engages users in a dynamically generated multimodal, conversation to aid users in exploring large and complex information spaces.
Unlike existing information access paradigm that forces users to explore information following pre-defined paths (e.g., GUI menus), RIA allows users to express their information requests flexibly using multiple modalities, such as GUI, natural language, and gesture. Using a rich context, such as conversation history and data semantics, RIA is capable of understanding user inputs, including complex data queries (e.g., "tell me about cities in the north along Hudson river with at least 5000 people"), abbreviated requests (e.g., "what about golf courses"), and imprecise and ambiguous ones. To create tailored responses to such diverse user queries introduced during a conversation, we automate the generation of RIA responses. In particular, we use optimization-based approaches to select/organize desired content, and assign the proper media to convey different types of content. To present the intended content in a specific medium, we develop case-based learning algorithms to dynamically synthesis speech and visual presentations. As a result, RIA provides users with a customized multimedia presentation of retrieved information, including both speech and graphics.
BIOGRAPHY
Dr. Zhen Wen is research staff member at IBM T. J. Watson Research Center. His research interests include visualization, computer graphics, machine learning, pattern recognition and multimedia systems. Zhen received PhD degree in computer science from Univ. of Illinois at Urbana-Champaign. His thesis work was on human video analysis for intelligent human computer interaction and activity monitoring. At IBM, Zhen's current research focuses on adaptive context-sensitive user interfaces for information analysis such as business intelligence. Specifically, he has worked on information retrieval adapted to task contexts and user interactions; smart graphics generation for dynamic visual analytic. Zhen's work has been filed as three patents and has been published in leading conferences and journals in multimedia, pattern recognition and user interfaces, such as ACM Multimedia, CVPR, InfoVis and Intelligent User Interfaces (IUI). Zhen's work received a best paper award at IUI 2005, an IBM Research Division Award and an IBM invention award in 2005. Zhen serves on technical committees for major conferences such as ACM Multimedia, IEEE Multimedia.
- 101 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
Video Coding Using 3-D Dual-tree Wavelet Transform
Beibei Wang Electrical and Computer Engineering, Polytechnic University Brooklyn, NY11201, USA [email protected]
ABSTRACT
This work investigates the use of the 3-D dual-tree discrete wavelet transform (DDWT) for video coding. The 3-D DDWT is an attractive video representation because it isolates image patterns with different spatial orientations and motion directions and speeds in separate subbands. However, it is an overcomplete transform with 4:1 redundancy when only real parts are used. We apply the noise shaping algorithm proposed by Kingsbury to reduce the number of coefficients. To code the remaining significant coefficients, we propose two video codecs. The first one applies separate 3-D set partitioning in hierarchical trees (SPIHT) on each subset of the DDWT coefficients (each forming a standard isotropic tree). The second codec exploits the correlation between redundant subbands, and codes the subbands jointly. Both codecs do not require motion compensation and provide better performance than the 3-D SPIHT codec using the standard DWT, both objectively and subjectively. Furthermore, both codecs provide full scalability in spatial, temporal and quality dimensions. Besides the standard isotropic decomposition, we propose an anisotropic DDWT, which extends the superiority of the normal DDWT with more directional subbands without adding to the redundancy. This anisotropic structure requires significantly fewer coefficients to represent a video after noise shaping.
BIOGRAPHY
Dr. Beibei Wang received the B.S. degree from the University of Electrical Science and Technology of China (UESTC), Chengdu, in 2000, and the Ph.D. degree from Polytechnic University, Brooklyn, NY, in 2006, both in electrical engineering.
- 102 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
Berkeley-DB for Text/Multimedia Retrieval
Chun Jin Language Technologies Institute, School of Computer Science Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 [email protected]
ABSTRACT
Fast retrieval from rapidly-growing text and multimedia data collections becomes increasingly demanding. Ad hoc retrieval systems require tremendous implementation efforts to beat the growing scalability challenge and to keep up with the evolving retrieval techniques. On the other hand, a traditional Database Management System (DBMS) offers nice performance on large-scale structural data for complex transactional applications, but not the right set of functionalities for text and multimedia retrieval. Indeed, we need a database engine that contains core DBMS functionalities and a developer’s API. The DBMS core should contain a scalable storage manager and basic indexing structures, and the API should permit the construction of storage structures, the plug-in of ad hoc indexing methods, and the implementation of ad hoc retrieval algorithms. Berkeley-DB (BDB) is an engine that satisfies all the requirements. We are going to undertake the project for building text/multimedia databases upon BDB. In this talk, I will address the related work and following design issues: • Useful features from BDB for the TextDB/MMDB, • Design of the storage structures, • Indexing methods for text and multimedia, • Text/Multimedia API for richer indexing and retrieval methods, • Implementation of the default methods.
BIOGRAPHY
Dr. Chun Jin is a postdoctoral fellow in Language Technologies Institute at Carnegie Mellon University. She received her B.S. in Computer Science from Xidian University, M.S. in Computer Science from Columbia University, and Ph.D. in Language and Information Technologies from Carnegie Mellon University. Her expertise includes artificial intelligence, machine learning, databases, information retrieval, and indexing and analysis of massive data. For her thesis, Dr. Jin built the first comprehensive incremental multiple query optimization (IMQO) framework to permit dynamic query registration to shared query evaluation plans for structural data stream monitoring, which leads to up to hundreds of times performance improvement. Before the thesis work, she worked on the projects on Topic Detection and Tracking (TDT), text summarization, confidence measures in dialog systems, text feature extraction, and several software products. Now she is working on stream databases, text/multimedia databases, and predictive modeling.
- 103 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
Providing Intelligent Conversation Notation Services in Enterprises
Xiaotao Wu Avaya Labs Research Lincroft, NJ 07738 [email protected]
ABSTRACT
In enterprises, people usually have many correlated conversations over time and often require retrieving existing conversations for reference. If there is a tool kit that can automatically present related conversations in a context- aware, real-time, and user-friendly way, it will greatly help improve people's communication efficiency. We designed such a tool kit that employs automatic speech recognition (ASR), information retrieval (IR), and desktop call control functions to provide an intelligent conversation notation service to enterprise users. We prototyped our design with Avaya phones, Dragon Naturally Speaking SDK, Google Desktop API, and Microsoft Office Communicator. The prototype reveals some challenges in providing the service, such as how to identify the most suitable resources for audio recording and ASR, how to address the legal issues on audio recording, how to achieve high IR accuracy even with low ASR accuracy, and how to control desktops through phones and vice versa. The prototype also shows our approaches to deal with these challenges.
BIOGRAPHY
Dr. Xiaotao Wu received his B.S. and B.E. degrees from Tsinghua University, Beijing, China, in 1994, and M.S. degree from Columbia University, New York, USA, in 1999. He joined Dr. Henning Schulzrinne's IRT lab at Columbia University for his Ph.D. degree in 2000. Since 2005, he worked as a research scientist in Avaya Labs Research. His research interests include Internet real-time and multimedia communication services and protocols.
- 104 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM2 − Technical Session: Multimedia Applications
ViCo: A Large-Scale On-line Video Correlation System
Xiaohui Gu IBM T. J. Watson Research 19 Skyline Dr, Hawthorne, NY 10514, USA [email protected]
ABSTRACT
Many emerging applications such as video sensor monitoring can benefit from an on-line video correlation system, which can be used to discover linkages between different video streams in realtime. However, on-line video correlations are often resource-intensive where a single host can be easily overloaded. In this talk, I will present a new distributed on-line video correlation system called ViCo. Unlike single stream processing, correlations between different video streams require a distributed execution system to observe a new correlation constraint that any correlated data must be distributed to the same host. ViCo achieves three unique features: (1) correlation-awareness that ViCo can guarantee the correlation accuracy while spreading excessive workload on multiple hosts; (2) adaptability that the system can adjust algorithm behaviors and switch between different algorithms to adapt to dynamic stream environments; and (3) fine- granularity that the workload of one resource-intensive correlation request can be divided and distributed among multiple hosts. We have implemented and deployed a prototype of ViCo on a commercial cluster system. Our experiment results using both real videos and synthetic workloads show that ViCo outperforms existing techniques for scaling-up the performance of video correlations.
BIOGRAPHY
Xiaohui Gu is currently a research staff member at IBM T. J. Watson Research Center, New York. Her general research interests include distributed systems, operating systems, and computer networks with a current focus on large-scale data stream processing, autonomic system management using machine learning methods, peer-to-peer systems, and mobile systems. She received ILLIAC fellowship, David J. Kuck Best Master Thesis Award, and Saburo Muroga Fellowship from University of Illinois at Urbana-Champaign. She received IBM first Invention Award on 2004, and first Invention Plateau Award on 2006. She has served program committee and/ organizing committee in PerCom 2006-07, RTSS 2006, ICPS 2005-07, ACM Multimedia 2005 service composition workshop, ACM Multimedia Modeling Conference 2006, ICDE 2007 AIMS workshop. She received her PhD degree in 2004 and MS degree in 2001 from the Department of Computer Science, University of Illinois at Urbana-Champaign. She received her BS degree in computer science from Peking University, Beijing, China. More information can be found at her homepage http://www.research.ibm.com/people/x/xgu.
- 105 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM3 − Technical Session: Multimedia Indexing and Analysis
Session Chair
Lexing Xie
IBM T J Watson Research Center 19 Skyline Drive, Hawthone, NY 10532 [email protected]
BIOGRAPHY
Lexing Xie is a Research Staff Member in IBM T. J. Watson Research Center in Hawthorne, NY, USA. Her research has been on multimedia signal processing, content analysis, data mining and machine learning. Her current work in the Intelligent Information Analysis group in IBM Research is on mining patterns and modeling events in diverse multimodal streams, as well as better algorithms and systems for searching, authoring and interacting with multimedia data. She received PhD in Electrical Engineering from Columbia University in 2005, and B.S. in EE from Tsinghua University, Beijing, China in 2000. She worked in Microsoft Research Cambridge, UK, June-August 2003. She is the recipient of the 2005 IBM Research Josef Raviv Memorial Postdoc Fellowship, her research has received best student paper awards from IEEE ICIP in 2004 and ACM Multimedia in 2002 and 2005, respectively.
- 106 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM3 − Technical Session: Multimedia Indexing and Analysis
Dynamic Multimodal Fusion for Video Search
Lexing Xie IBM T J Watson Research Center 19 Skyline Drive, Hawthone, NY 10532 [email protected]
ABSTRACT
This talk is on effective multimodal fusion strategies for video search. The current need for searching over large collections of image, videos and various data sources has put high expectations for the technology advances in this area, thanks to the rapid growth in both online and offline multimedia content. Multimodal fusion strategies are essential to such systems in order to utilize all available retrieval experts and to boost the performance. Prior work in multimodal fusion has focused on hard- and soft- modeling of query classes and learning weights for each class, while the class partition is either manually defined or learned from data but still insensitive to the testing query. We propose a query-dependent fusion strategy that dynamically generates a class among the training queries that are closest to the testing query, based on light-weight query features defined on the outcome of semantic analysis on the query text. A set of optimal weights are then learned on the dynamic class, which aims to model both the co- occurring query features and unusual test queries. Used in conjunction with the rest of our multimodal retrieval system, dynamic query classes outperform hard and soft query classes, and the system performance improves upon the best automatic search run of TRECVID05 and TRECVID06 by 34% and 8%, respectively. This work is based on the IBM Marvel multimedia indexing and retrieval system, and is joint work with Paul Natsev, Jelena Tesic, and other colleagues in the Intelligent Information Analysis Group.
BIOGRAPHY
Dr. Lexing Xie is a Research Staff Member in IBM T. J. Watson Research Center in Hawthorne, NY, USA. Her research has been on multimedia signal processing, content analysis, data mining and machine learning. Her current work in the Intelligent Information Analysis group in IBM Research is on mining patterns and modeling events in diverse multimodal streams, as well as better algorithms and systems for searching, authoring and interacting with multimedia data. She received PhD in Electrical Engineering from Columbia University in 2005, and B.S. in EE from Tsinghua University, Beijing, China in 2000. She worked in Microsoft Research Cambridge, UK, June-August 2003. She is the recipient of the 2005 IBM Research Josef Raviv Memorial Postdoc Fellowship, her research has received best student paper awards from IEEE ICIP in 2004 and ACM Multimedia in 2002 and 2005, respectively.
- 107 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM3 − Technical Session: Multimedia Indexing and Analysis
Toward a Better Mobile Search Experience
Ning Hu Google Inc. 76 9th Ave, 4th Floor, New York, NY 10011 [email protected]
ABSTRACT
Users accessing the web on a mobile device search for different kinds of information, and in different ways than on a desktop computer. Mobile users need a search experience designed for the mobile context. So, Google is now rolling out a redesigned mobile search interface at google.com/m to better serve our mobile users. In this talk I will discuss how mobile search needs are different than traditional web search, how the new mobile interface was designed to address these needs -- in particular, the ways in which it tries to combine results from many sources in one unified search result set.
BIOGRAPHY
Dr. Ning Hu is a senior software engineer in Google's New York office. As the Tech Lead of the Mobile Search Quality group, she leads the efforts in improving the ranking algorithms and implementing new quality features to provide a better mobile search experience. Before she joined Google, Ning got her bachelor’s degree in Computer Science from Tsinghua University, and went to Carnegie Mellon University for her master’s degree in Entertainment Technology and Ph.D. in Computer Science.
- 108 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM3 − Technical Session: Multimedia Indexing and Analysis
Automatic Recognition of Audio-Visual Speech: Recent Progress and Challenges
Stephen M. Chu IBM T. J. Watson Research Center 1101 Kitchawan Road, Yorktown Heights, NY 10598 [email protected]
ABSTRACT
To exploit speech relevant information in the visual modality in addition to acoustic speech has been demonstrated as an effective approach to improve the performance of automatic speech recognition, especially under adverse acoustic environments. This talk gives an overview of audio-visual speech technologies, and presents the recent developments in visual feature extraction, multimodal fusion, and system development. An attempt at compiling some of the main research challenges facing the field is also given.
BIOGRAPHY
Dr. Stephen Mingyu Chu was born in Beijing, China, in 1970. He studied Physics at Peking University before coming to the United States, where he continued his education and received the M.S. degree and the Ph.D. degree in Electrical Engineering from the University of Illinois at Urbana-Champaign, in 1999 and 2003, respectively. His Ph.D. thesis looked into multimodal fusion with applications to audio-visual speech recognition. The research was carried out under the guidance of Professor Thomas S. Huang.
Since May, 2003, he has been with the Human Language Technologies Group at the IBM T. J. Watson Research Center. His research interests include multimodal signal processing, graphical models, and machine learning. His recent work on audio-visual speech recognition has been featured in The New York Times, The Journal News, and on the PBS program Scientific American Frontiers with Alan Alda.
- 109 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM3 − Technical Session: Multimedia Indexing and Analysis
Ferret: A Toolkit for Content-Based Similarity Search of Feature- Rich Data
Qin Lv Princeton University 35 Olden Street, Princeton, NJ 08540 USA [email protected]
ABSTRACT
Building content-based search tools for feature-rich data (such as audio, video, digital photos and scientific sensor data) has been a challenging problem because feature-rich data are inherently noisy and high dimensional. Comparing noisy data requires comparisons based on similarity instead of exact matches, and thus searching for noisy data requires similarity search instead of exact search.
The Ferret toolkit is designed to help domain experts and system builders to quickly construct content-based similarity search systems for feature-rich data types. The key component of the toolkit is a content-based similarity search engine for generic, multi-feature object representations. To solve the similarity search problem in high- dimensional spaces, we have developed approximation methods inspired by recent theoretical results on dimension reduction. The search engine constructs sketches from feature vectors as highly compact data structures for matching, filtering and ranking data objects. The toolkit also includes several other components to help system builders address search system infrastructure issues. We have implemented the toolkit and used it to successfully construct content-based similarity search systems for four data types: audio recordings, digital photos, 3D shape models and microarray gene expression data.
BIOGRAPHY
Dr. Qin Lv is currently a Postdoctoral Research Associate in the Department of Computer Science at Princeton University, from where she received her Ph.D. degree in 2006. She received her B.E. degree with honors from the Department of Computer Science and Technology at Tsinghua University. Qin’s research interests include search systems, data management, distributed systems, storage systems, and networking.
- 110 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM4 − Technical Session: Multimedia Content Analysis and Delivery
Session Chair
Rong Duan
AT&T Lab 180 Park Ave, Florham Park, NJ 07932 [email protected]
BIOGRAPHY
Rong Duan received her B.S and M.S in Computer Science and expects to receive her Ph.D. in Computer Engineering in May, 2007. She joined AT&T Labs in 1998 and is currently a member of Applied Data Mining Group. Her research interests include data mining with applications in image/video analysis, business intelligence, and marketing. In particular, her research dissertation investigates supervised and semi-supervised learning methods in pattern recognition problems. She is a member of INFORMS and IEEE and currently serves as the secretary and treasurer of the INFORMS Data mining section.
- 111 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM4 − Technical Session: Multimedia Content Analysis and Delivery
Semi-supervised Learning in Image Classification
Rong Duan AT&T Lab 180 Park Ave, Florham Park, NJ 07932 [email protected]
ABSTRACT
This talk studies the problem of using limited amount of labeled data and large amount of unlabeled data in the training of a generative model for image classification, and proposes a likelihood space approach to improve the classification performance. Frequently when labeled data is limited, unlabeled data can help to improve classification performance if the assumption of the generative model structure in the classifier is correct. But classification accuracy can be degraded if the model structure assumption is incorrect. In this talk, we compare raw data space classification and likelihood space classification in semi-supervised learning framework, and we show that the classification performance can be improved in likelihood space when model is mis-specified. We apply this likelihood space semi-supervised learning method in automatic target recognition on SAR images, and experimental results demonstrate the effectiveness of this proposed approach.
BIOGRAPHY
Rong Duan received her B.S and M.S in Computer Science and expects to receive her Ph.D. in Computer Engineering in May, 2007. She joined AT&T Labs in 1998 and is currently a member of Applied Data Mining Group. Her research interests include data mining with applications in image/video analysis, business intelligence, and marketing. In particular, her research dissertation investigates supervised and semi-supervised learning methods in pattern recognition problems. She is a member of INFORMS and IEEE and currently serves as the secretary and treasurer of the INFORMS Data mining section.
- 112 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM4 − Technical Session: Multimedia Content Analysis and Delivery
Robust Adjusted Likelihood Function in Classification
Hong Man Stevens Institute of Technology Castle Point on Hudson, Hoboken, NJ 07030 [email protected]
ABSTRACT
Model misspecification has been a major concern in practical model based image analysis. The underlying assumptions of generative processes usually can not exactly describe real-world data samples, which renders the maximum likelihood estimation (MLE) and the Bayesian decision methods unreliable. In this work we study a robust adjusted likelihood (RAL) function that can improve image classification performance under misspecified models. The RAL is calculated by raising the conventional likelihood function to a positive power and multiplying it with a scaling factor. Similar to model parameter estimation, these two new RAL parameters, i.e. the power and the scaling factor, are estimated from the training data using minimum error rate method. In two-category classification case, this RAL is equivalent to a linear discriminant function in log-likelihood space. To demonstrate the effectiveness of this RAL, we first simulate a model misspecification scenario, in which two Rayleigh sources are misspecified as Gaussian distributions. The Gaussian parameters and the RAL parameters are estimated accordingly from the training data, and the two RAL parameters are studied separately. The simulation results show that the Bayes decisions based on maximum-RAL yield higher classification accuracy than the decisions based on conventional maximum-likelihood. We further apply the RAL in automatic target recognition (ATR) of SAR images. Two target classes, i.e. t72 and bmp2, from MSTAR SAR target dataset are used in this study. The target signatures are modeled using Gaussian mixture models (GMMs) with five mixtures for each class. Image classification results again demonstrate a clear advantage of the proposed approach.
BIOGRAPHY
Dr. Hong Man received his Ph.D. degree from Georgia Institute of Technology in 1999, in Electrical Engineering. He joined Stevens Institute of Technology in 2000. He is currently the director for undergraduate Computer Engineering Program in the Electrical and Computer Engineering Department, the director for Visual Information Environment Laboratory at Stevens, and the coordinator for NSA Center of Academic Excellence in Information Assurance in the School of Engineering. He was a member of organizing committees for IEEE International Workshop on Multimedia and Signal Processing (MMSP) 2002, 2005, and IEEE International Conference on Multimedia & Expo (ICME 2007). He also served on the technical program committees for IEEE Vehicular Technology Conference (VTC) Fall 2003, and IEEE/ACM International Conference on E-Business and Telecommunication Networks (ICETE) 2004, 2005 and 2006. He is a member of ACM and senior member of IEEE.
- 113 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM4 − Technical Session: Multimedia Content Analysis and Delivery
IGP Weight Setting in Multimedia IP Networks
Dongmei Wang AT&T Labs Research Florham Park, New Jersey, USA [email protected]
ABSTRACT
With more service providers making considerable investments to roll out multimedia services using IP technology, live TV distribution on IP network is expected to grow impressively over next few years. To make efficient use of IP network infrastructure, service providers use multicast to transmit broadcast video content to the receiving nodes while simultaneously using unicast to transport other services on the same network, such as video on demand (VoD), High-speed Internet (HIS) etc. How to engineer different traffic flows on the same network to avoid traffic congestion becomes a major design issue. Although the service traffic flows are from source to receivers, the IP multicast tree is calculated using IGP shortest path from the receivers to the source (backwards from the flow), while the unicast path is calculated from the source to the receivers (same direction as the flow). To minimize congestion, we take advantage of this property and propose an algorithm to tune IGP link weights (such as OSPF) such that the traffic flows for multicast and unicast don’t overlap. This proposal provides a natural way for service providers to use the spare capacity on the opposite direction of multicast traffic flow to roll out additional services in the same IP networks without impacting existing multicast services.
BIOGRAPHY
Dr. Dongmei Wang received her M.S from Beijing Normal University in 1995, and PhD from the college of William and Mary in 2000. Since then, she joined AT&T research lab and has been working on network related research topics, from optical layer to application, architectures to protocols, algorithms to simulation, provisioning to restoration. Most recently, she has been focusing on IPTV related problems. She has been the author of more than 30 research papers and filed 15 patents.
- 114 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
MM4 − Technical Session: Multimedia Content Analysis and Delivery
WebTalk: Towards Automatically Building Interactive Systems Through Mining Websites
Junlan Feng AT&T Labs Research Florham Park, New Jersey, USA [email protected]
ABSTRACT
WebTalk is an intelligent agent that automatically mines company websites to create interactive spoken and text- based dialog systems. In this talk, I will briefly describe the technologies that WebTalk utilizes for extracting task knowledge from websites and answering customer questions. Then, I will elaborate on a discriminative learning approach for question answering. Our training corpus consists of 2 million Frequently Asked Questions (FAQs) and their corresponding answers that we mined from the World Wide Web. This corpus is used to train the lexical and semantic association model between questions and answers. We evaluate our approach on two question answering tasks: 2003 Text Retrieval Conference Question Answering task, and finding answers to FAQs. In both cases, the proposed approach achieved significant improvements over the results for an information retrieval based question answering model.
BIOGRAPHY
Dr. Junlan Feng is a senior research member at AT&T LABS RESEARCH. She received her Ph.D in Electronic Engineering from Chinese Academy of Sciences in 2001 and joined AT&T in the same year. Dr. Feng's research interest lies in several technical areas including web mining, question answering, natural language understanding, machine learning, information extraction, information retrieval, speech recognition, and spoken dialog management. She currently focuses her research on web mining and question answering.
- 115 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC1 − Technical Session: Optical Network Architecture, Design, and Planning
Session Chair
Angela L. Chiu
AT&T Labs - Research 200 Laurel Ave, Middletown, NJ 07748 [email protected]
BIOGRAPHY
Angela L. Chiu received her S.M and Ph.D. degrees, both in electrical engineering and computer science from MIT, Cambridge, MA, in 1993 and 1997, respectively. She was a research staff member in the Optical Communication Technology group of MIT Lincoln Laboratory from April to November 1997. In November 1997, she joined AT&T Labs and lead architecture and design on IP QoS, MPLS, restoration and control plan for IP over Optical architecture. Her team pioneered the first IP class of service in 1999. Now she is a principal member of technical staff at Transport Network Evolution Research Department. During 2001 and 2002, she was a principal architect at Celion Networks, an optical start-up. She holds five U.S. patents and six others pending. She is a co-author of 6 IETF standards. Her research interests include architecture, design, and analysis of IP and optical networks.
- 116 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC1 − Technical Session: Optical Network Architecture, Design, and Planning
IP over Optical Cross-Connect Architectures
Guangzhi Li AT&T Labs Research A169/103, 180 park avenue, Florham Park, NJ 07932 [email protected]
ABSTRACT
IP-over-optical network architectures have been extensively discussed within the research literature over the past few years. However, although signaling protocols between IP routers and optical cross-connect networks have been standardized, large IP backbones are not typically deployed over optical cross-connect networks with automatic re- configurability features, such as automatic restoration or dynamic establishment of new IP links. One of the most important criteria in determining whether an IP backbone should be carried over such an optical cross-connect network is economic viability. We analyze and explore four architectures for a typical large ISP backbone. In contrast with some other published claims, our results suggest that it is more economically attractive to bypass an intermediate cross-connect network, given current equipment and IP backbone network design requirements. However, for ISPs who also provide a large volume of private line services, we propose an integrated architecture for IP-over-optical-cross-connect networks that may provide an attractive alternative for providing rapid and cost- effective restoration against network failures. This is a jointed work with D. Wang, J. Yates, R. Doverspike, and C. Kalmanek.
BIOGRAPHY
Guangzhi Li received his undergraduate and master degrees in Mathematics from TsingHua University. Then he came to US in 1996 and received his Ph.D. degrees in computer science from the college of William & Mary in 2000. After graduation, Dr. Li joined AT&T Labs Research. Dr. Li has made extensive contributions to the field of network design and optimization. His work also includes advanced transport and IP network architectures, network restoration methods, and methods for IP over optical-layer integration. He has published more than 50 papers in peer-reviewed journals and conferences, and has filed 15 patents. He is member of IEEE and has served as TPCs of multiple international conferences.
- 117 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC1 − Technical Session: Optical Network Architecture, Design, and Planning
Design and Planning Tool for Optical Networks
Yunfeng Shen CIENA Corporation 920 Elkridge Landing Road, Linthicum, MD 21090 [email protected]
ABSTRACT
Design and planning tools are increasingly used in core and metro networks for both pre-sales (RFP) and post-sales (installation and support) activities. Ciena’s Network Designer (CND) tool performs Layer 0 network designs, optimization and detailed equipment configuration. CND capabilities include node-optimization algorithms for different optical transparency levels, link configuration choices based on long-haul or regional system reach, and auto placement of OADM’s and transmission line hardware. CND also considers wavelength demands during network design, performs light path wavelength assignment, Q computation, and automatic regenerator placement. It produces a Bill of Materials list and contains price models to facilitate design option comparisons. This talk will discuss underlying algorithms and resulting design trade-offs, and give examples of Greenfield and Brownfield network design support. It is also intended to initiate a discussion on single versus multiple tools approach for converged network layers, and its impact on algorithmic complexity and simulation time.
BIOGRAPHY
Dr. Shen received the B.S. degree from Northern Jiaotong University, Beijing, China, in 1994, and the Ph.D. degree from Beijing University of Posts and Telecommunications, Beijing, China, in 1999, both in electrical engineering.
Dr. Shen is a Principal Engineer in Lightwave Systems Department of CIENA Corporation, Linthicum, Maryland, where he has been engaged in the research and development of next generation optical networking products since 2001. He worked with Agilent Technologies Singapore Operation on high-density parallel optical transceivers from 2000 to 2001. From 1999 and 2000, he was a Research Fellow at Nanyang Technological University, Singapore, where he worked on the design and development of WDM networks.
- 118 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC1 − Technical Session: Optical Network Architecture, Design, and Planning
A Systematic Approach of Incremental Design for Optical Network
Dah-Min Hwang AT&T Labs 200 S Laurel Avenue, Room C1-3D14, Middletown, NJ 07748 [email protected]
ABSTRACT
A network transport equipment supplier usually develops a design tool with its product for the service provider. The service provider would rely on this design tool to build up the network. However, the design tool usually deals only with a static traffic matrix, i.e., with inputs of the existing network topology and a fixed set of new traffic demands, the design tool outputs an optimized feasible solution. In the real world, the service provider never builds the whole network at one time. The traffic demands are not static and the long-term traffic forecast always changes from time to time. How to apply the supplier’s static design tool for the real dynamic network is a challenging problem. This talk presents a systematic approach for increment design as the network and traffic grow. This approach applies the static network design tool iteratively to the current new traffic demands and to the future traffic forecast. It optimizes the incremental design to meet the current demands, while takes the impacts of future demands into consideration to avoid excessive penalty in the future. Specifically, the proposed approach optimizes the Net Present Value (NPV), focusing in supporting the new demands in the current design cycle, while considering the future forecast with proper discount for value-of-time and uncertainty. This work is motivated from the design of DWDM optical network. However, the concept of dynamic incremental design can be applied to many different fields. An U.S. patent based on this approach has been filed.
BIOGRAPHY
Dah-Min Hwang got his B.S. in physics from National Taiwan University and Ph.D. in experimental condense matter physics from the University of Chicago. He has taught physics in National Tsing Hua University at Hsinchu and in University of Illinois at Chicago. He moved to Bellcore (now Telcordia) in 1984 and continued his semiconductor materials and device research using laser Raman spectroscopy and transmission electron microscopy. He has published more than 200 papers and filed 5 patents.
Dah-Min joined AT&T Labs in 1995 and changed his work to network technology planning and business case development. Currently he is a senior technical specialist in optical transport technology planning. He has served as the feature sponsor of several DWDM development projects for the deployment in AT&T inter-city core network.
- 119 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC1 − Technical Session: Optical Network Architecture, Design, and Planning
Optimal Provisioning of Elastic Service Availability
Dahai Xu Department of Electrical Engineering Princeton University, Princeton, NJ 08544 [email protected]
ABSTRACT
Service availability is one of the most closely scrutinized metrics in offering network services. The network vendor can earn more revenue from the customers by guaranteeing higher service availability at the cost of higher operational expense. It is important to cost-effectively provision a managed and differentiated network with various service availability guarantees under a unified platform. We establish the framework of provisioning elastic service availability through network utility maximization and propose an optimal and distributed solution using differentiated failure recovery schemes.
Several observations are made from this investigation. For example, indiscriminately provisioning service availabilities for different kinds of users within one network leads to noteworthy sub-optimality in terms of maximizing network utility. In addition, provisioning high service availability exclusively for critical users/applications leads to significant waste in bandwidth resource.
BIOGRAPHY
Dr. Dahai Xu is currently a Postdoctoral Research Associate in the Department of Electrical Engineering at Princeton University. He received his Ph.D. degree in Computer Science and Engineering from University at Buffalo in 2005. His research interests include survivability and restoration in IP/MPLS, optical networks, network design and protocol development for next generation Internet and performance evaluation (modeling, simulation and measurements).
- 120 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC2 − Technical Session: Optical Communication Technologies
Session Chair
Xiang Liu
Alcatel-Lucent, Bell Laboratories 791 Holmdel-Keyport Road, Holmdel, NJ 07746 [email protected]
BIOGRAPHY
Xiang Liu is a member of technical staff in the Optical Networks Department at Bell Labs in Holmdel, New Jersey. He holds an M.S. degree in physics from the Institute of Physics at the Chinese Academy of Sciences in Beijing, China and M.S. and Ph.D. degrees in applied physics from Cornell University in Ithaca, New York. His doctoral work contributed to the first generation of optical spatiotemporal solutions.
Dr. Liu joined Bell Labs in May 2000. His current research interests include advanced modulation formats, high- speed optical transmission, novel nonlinearity and dispersion management, mitigation of polarization mode dispersion, and analytical and numerical modeling of optical transport systems. He has been awarded two Bell Labs Team Awards, and is a Gold Medalist of the 2005 Bell Labs President Award for his contribution to the Lambda- Xtreme DWDM long-haul product.
Dr. Liu has authored more than 130 journal and conference papers, and holds over ten international patents. Dr. Liu is a senior member of the IEEE.
- 121 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC2 − Technical Session: Optical Communication Technologies
Technologies, Economics, and Deployment of Optical Access Networks
Kevin W. Lu Telcordia Technologies, Inc. One Telcordia Drive, Piscataway, NJ 08854-4157, U.S.A. [email protected]
ABSTRACT
Fiber to the home (FTTH) based on passive optical network (PON) technologies offers greater bandwidth than cable modems and digital subscriber line (DSL). Widespread FTTH deployment would enable immense potential for broadband usage and economic growth. This talk provides an overview of various PON technologies including standardized time-division multiplexed PON (TDM-PON) technologies including Ethernet PON (EPON), broadband PON (BPON), and gigabit PON (GPON); and the current standards development proposed for 10G EPON and wavelength-division multiplexed PON (WDM-PON) technologies. The paper also discusses the key factors of FTTH economics and deployment including the density of homes passed, percentage of homes connected (also known as take rate), serving area size, cascaded vs. centralized splitter architectures, and fiber distribution hub location.
BIOGRAPHY
Dr. Kevin W. Lu is Chief Scientist of Emerging Technologies and Services at Advanced Technology Solutions of Telcordia Technologies, Inc. in Piscataway, New Jersey, U.S.A. He has more than 22 years of experience in wireless, optical, and multimedia communications research and development. He currently develops business for the commercial and government programs including projects such as advanced PONs, optoelectronics testing, software quality process, notification solutions, and IPv6 transition. He was the WOCC 2003 Multimedia Program Chair and WOCC 2005 Conference Organizer; and is currently Vice Chair of the WOCC Board of Trustees. He also served on the Review Panel of the NSF Integrative Graduate Education and Research Traineeship (IGERT) program and the Advisory Board of the Electrical and Computer Engineering Department of Polytechnic University in 2006.
Kevin received the B.S. degree in control engineering from National Chiao Tung University, Hsinchu, Taiwan, in 1979, and the M.S. and D.Sc. degrees in systems science and mathematics from Washington University, St. Louis, Missouri, in 1981 and 1984, respectively. Working for Bellcore and now Telcordia since 1984, he has conducted system engineering work and life-cycle economic analyses of various wireline and wireless broadband technologies and services. He has authored 62 journal or conference publications, and 46 internal technical memoranda. He received Telcordia Award of Excellence in 1987 for his substitution models for capital recovery based on both physical deterioration and technological obsolescence. He became Director of Broadband Access Network Engineering from September 1995 to March 1999, and Executive Director of Integrated Access and Operations from March 1999 to January 2003. He also managed the Telcordia Horizons Research Program for BellSouth Science and Technology from 1997 to 2001.
The highlights of Kevin’s technical contributions include his IEEE JSAC paper [Vol.8, No.6, pp. 1058-1067, August 1990] concluding cost-effectiveness of passive optical networks (PON) over other alternatives, his paper at the Eighth International Workshop on Optical/Hybrid Access Networks [Paper 2.3, Atlanta, Georgia, March 2-5, 1997] revealing cost-effectiveness of fiber-to-the-home and fiber-to-the-curb networks for various demands and densities, and his contribution in June 2000 to the Committee on Broadband Last Mile Technology of the National Research Council in Washington, DC [Broadband – Bringing Home the Bits, National Academy Press, Washington, D.C., 2002].
- 122 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC2 − Technical Session: Optical Communication Technologies
Optical Technologies for High Capacity Fiber Transmission
Xiang Liu Alcatel-Lucent, Bell Laboratories 791 Holmdel-Keyport Road, Holmdel, NJ 07746 [email protected]
ABSTRACT
The last few years have witnessed rapid advances in optical technologies for high-speed fiber transmission that have resulted in record-setting capacity-distance products and highly flexible and transparent optical networking. In this paper, we review some of the new key enabling approaches used in optical terminals, repeaters, and link designs. In particular, we highlight advances in modulation formats and their corresponding transmitter and receiver designs, chromatic dispersion compensation, broadband Raman amplification, polarization mode dispersion mitigation, and hybrid 10 Gb/s and 40 Gb/s dense wavelength division multiplexing (DWDM) systems with reconfigurable optical add/drop multiplexers (ROADMs).
BIOGRAPHY
Xiang Liu is a member of technical staff in the Optical Networks Department at Bell Labs in Holmdel, New Jersey. He holds an M.S. degree in physics from the Institute of Physics at the Chinese Academy of Sciences in Beijing, China and M.S. and Ph.D. degrees in applied physics from Cornell University in Ithaca, New York. His doctoral work contributed to the first generation of optical spatiotemporal solitons.
Dr. Liu joined Bell Labs in May 2000. His current research interests include advanced modulation formats, high- speed optical transmission, novel nonlinearity and dispersion management, mitigation of polarization mode dispersion, and analytical and numerical modeling of optical transport systems. He has been awarded two Bell Labs Team Awards, and is a Gold Medalist of the 2005 Bell Labs President Award for his contribution to the Lambda- Xtreme DWDM long-haul product.
Dr. Liu has authored more than 130 journal and conference papers, and holds over ten international patents. Dr. Liu is a senior member of the IEEE.
- 123 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC2 − Technical Session: Optical Communication Technologies
Optical Power Transients and Its Control in a Photonic Network
Xiang Zhou AT&T Labs-Research A5 1F-32, 200 Laurel Ave South, Middletown, NJ 07748 [email protected]
ABSTRACT
Optical network using remote configurable optical add/drop multiplexers (OADMs) or photonic cross connects (PXCs) to route wavelength optically has gained tremendous momentum driven by the need for lower cost, great flexibility in data formats and hitless capacity upgrades. For such a network, however, cascaded optical amplifier and inter-channel stimulated Raman scattering (SRS) transients due to accident fiber cut or equipment failure becomes a serious problem, which may ultimately limit the size of a transparent optical network. In this talk, I’ll present measured results on SRS and residual EDFA transients in a realistic WDM system. Then I’ll talk about a new transient compensation method we recently proposed for a conventional EDFA-amplified WDM system, where the combined SRS and residual EDFA transients accumulated from multiple EDFA-only spans are compensated by a multi-wavelength forward-pumped discrete Raman fiber amplifier (RFA) using a simple linear feed-forward control algorithm. Finally I’ll talk about transient control in a Raman-amplified WDM system.
BIOGRAPHY
Dr. Xiang Zhou received the B.Sc degree in physics from Fudan University, Shanghai, China in 1991, and the Ph. D degree in electrical engineering from Beijing University of Posts & Telecommunications in 1999. His ph. D research focused on ultra-high speed OTDM optical fiber communication system. From 1999 to 2001, he was with Nangang Technological University, Singapore, as a Research Fellow, where his research covered optical CDMA, fiber- grating based WDM add/drop multiplexer and wide-band Raman amplification. He has been a senior technical staff member in AT&T Labs-Research since October 2001, working on optical technologies for ultra-long haul optical transmission and photonic networking. He has authorized/co-authorized more than 50 peer-reviewed Journal and Conference publications, and held 3 USA patents. He is currently a senior member of IEEE.
- 124 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC2 − Technical Session: Optical Communication Technologies
Transient Control in Dynamically Reconfigured Networks with Cascaded Erbium Doped Fiber Amplifiers
Lei Zong NEC Laboratories America, Inc. 4 Independence Way, Suite 200, Princeton, NJ 08540 [email protected]
ABSTRACT
With the deployment of reconfigurable optical add/drop multiplexers (ROADMs) and photonic cross-connects (PXCs), channel loading experiences frequent changes in wavelength division multiplexing (WDM) networks. Optical add/drop and switching operation, as well as fiber cut or failures, results in severe transient effects in cascaded erbium doped fiber amplifiers (EDFAs), whose amount can be several tens in a transparent transmission system as the un-regenerated reach of modern transponders exceeds a few kilometers.
This talk reviews the development of transient control in dynamic networks with multiple cascaded EDFAs. It summarizes approaches that control optical power at amplifier level by means of automatic gain/level control and those at link level by using compensation channels. In addition, a simulation system is proposed for evaluation of transient control approaches. Amplifiers of different configurations, together with their gain/level control algorithms, can be modeled in the system. The simulation system can be used to investigate network transients and to optimize power control algorithms.
BIOGRAPHY
Dr. Lei Zong is a Research Staff Member of Optical Networking Department at NEC Laboratories America, Inc. at Princeton, New Jersey, USA.
He received Bachelor of Engineering, Master of Engineering and Ph. D. Degree in Electronic Engineering from Tsinghua University, Beijing, China in 1991, 1998 and 2001, respectively. He joined NEC Labs America in September 2001, where he has worked for more than five years on advanced optical switching and high speed optical transmission technologies. He received NEC Appreciation Award, Technology Commercialization Award and SEEDS 2007 Award in 2005, 2006 and 2007, respectively.
Dr. Zong has published more than 30 papers on the peer reviewed journals and the prestigious conferences. He also has 6 US patents and pending patents. His research interests include optical switching, transmission and internetworking.
- 125 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Session Chair
Jian Jim Wang
NanoOpto Corporation 1600 Cottontail Lane, Somerset, NJ 08873 [email protected]
BIOGRAPHY
Dr. Jian Jim Wang ([email protected]) is the Chief Technical Officer (CTO) of NanoOpto Corp. in New Jersey. He is in charge of all technical R & D work in NanoOpto Corporation. Under his leadership, the company has successfully developed a nano-lithography manufacturing platform and several award-winning commercial products based on nanotechnology. As principal investigator (PI), he has also successfully got over $1.5 million SBIR/STTR phase-I and phase-II small business funding in the past. Dr. Wang has over 15 years of experience in optics, optoelectronics, and nanofabrication. He is one of the world’s experts in nanoimprint lithography and commercial applications. Prior to joining NanoOpto, Dr. Wang was the vice president for technology and the first employee of Nanonex Corporation. Dr. Wang also worked as a lead design engineer at Lucent Technologies and Agere Systems. He was also part of the research staff at Princeton University. Dr. Wang holds a BS in Physics from Fudan University, Shanghai, and a Dr.rer.nat (Ph. D.) in physics from the University of Stuttgart, Germany. Dr. Wang has over 70 scientific publications, 7 patents and over 15 patent applications.
- 126 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Observations of Nonlinearities and Non-classical Optics in Photonic Crystals
C. W. Wong, R. Bose, J. Gao, J. F. McMillan and X. Yang Optical Nanostructures Laboratory, Columbia University Room 220 Mudd Hall, 500 West 120th Street, New York, NY 10027 [email protected]
ABSTRACT
Recent important advances in subwavelength nanostructures offer extraordinary control over the properties of light. We can now manipulate the propagation, storage, and generation of light, as well as practically prescribe its matter interaction properties based on first-principles. Photonic crystals, in particular, offer the unique ability to achieve ultrahigh Q/V nanocavities, and the arbitrary control of dispersion characteristics to increase photon-matter interaction times. In this talk, we will present our results on significantly enhanced nonlinearities in cavity-systems, line-defect waveguides and coupled systems for signal processing and optical buffering in the silicon photonics platform. In addition, we will examine the control of spontaneous emission through quantum dot – nanocavity interactions.
BIOGRAPHY
Dr. Chee Wei Wong joined the Columbia faculty in 2004, after receiving his Sc.D. in Mechanical Engineering (Optical Nanotechnology) at the Massachusetts Institute of Technology (MIT) in 2003. He received the S.M. at MIT in 2001, the B.Sc. in Mechanical Engineering (highest honors) at the University of California at Berkeley in 1999, and B.A. in Economics (highest honors) at the University of California at Berkeley in 1999. He was a post-doctoral research associate at the MIT Microphotonics Center prior to joining Columbia.
Prof. Wong’s research interests are in optical nanostructures, such as nonlinearities in nanophotonics, quantum dot interactions, high-density integrated optics, silicon electronic-photonic integration, nanoelectromechanical systems, and nanofabrication. He is the author/co-author of over 50 journal articles and 12 patents in these areas, and a member of APS, ASME, IEEE, OSA, and Sigma Xi.
- 127 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Recent Research Activities on Specialty Fibers
Ming-Jun Li Corning Incorporated SP-AR-02-2, Corning, NY 14831 [email protected]
ABSTRACT
Specialty optical fibers have many applications in telecommunication networks, fiber lasers, instrumentation, sensors, and gyroscopes. Although many different specialty fiber products are currently available in the market, research and development in this field are still very active to meet new application demands. In this presentation, we review recent research and development activities at Corning Incorporated on new specialty fibers such as single polarization fibers, nonlinear fibers, microstructured fibers and fibers with reduced stimulated Brillouin scattering for high power applications. We discuss fiber design concepts and present both modeling and experimental results.
BIOGRAPHY
Dr. Ming-Jun Li received the B.Sc. degree in applied physics from the Beijing Institute of Technology, Beijing, China, in 1983, the M.Sc. degree in optics and signal processing from University of Franche-Comté, Besancon, France, in 1985, and the Ph.D. degree in physics from University of Nice, Nice, France, in 1988.
From 1989 to 1990, he was a Postdoctoral Fellow with the Integrated Optics Laboratory, Ecole Polytechnique de Montreal, Montreal, QC, Canada, where he worked on waveguide devices such as couplers, waveguide gratings, and rare earth doped waveguides. From 1991 to 1994, he was with Nortel Optical Cable Division, Saskatoon, SK, Canada, where he was a Research Scientist working on designs and process developments for transmission fibers and specialty fibers. Since he joined Corning, Inc., Corning, NY, in 1994, his research work has been focused on the fields of optical fibers and optical networks and systems. He was a key contributor to new fiber developments for long haul and submarine transmissions including the LEAF® fiber, an award-winning product. He made significant contributions to the designs and process improvements for producing ultra-low polarization mode dispersion (PMD) fibers. He also worked on photonics crystal fibers and photonics bang-gap fibers as well as specialty fibers such as dispersion compensation fibers, nonlinear fibers, single polarization fibers and high power laser fibers. His research on optical protection demonstrated feasibility of transparent optical protection ring architectures and functionalities. He is currently a Senior Research Associate in the Optical System and Network Research Group, where his research work is related to new fiber designs and system testing. He holds 25 U.S. patents and has published one chapter in a book and authored and coauthored over 100 technical papers in journals and conferences.
Dr. Li received the 1998 French National Prize on Guidedwave Optics for his work on Cerenkov second harmonic generation. He also received 2005 Stookey Award for exploratory research at Corning Incorporated. He is a member of Optical Society of America, IEEE Communications Society, and the IEEE Lasers and Electro-Optics Society. He has served as an Associate Editor for the JOURNAL OF LIGHTWAVE TECHNOLOGY from 1999 to 2004. He is currently a technical committee member for OFC, and a lead subcommittee 1 chair for APOC.
- 128 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Nanoimprint and Holographic Lithographies for Large-area Nano- optical and Biosensing Applications
Jian Jim Wang NanoOpto Corporation 1600 Cottontail Lane, Somerset, NJ 08873 [email protected]
ABSTRACT
Two key nano-fabrication techniques for making large-area (4” to 8”) sub-50nm patterned structures, i.e., nanoimprint lithography and holographic lithography, will be discussed in this presentation. After a review of the imprint lithography status, this talk will particularly focus on UV-nanoimprint and full-wafer immersion holographic lithography. Large area sub-38 nm half pitch structures were fabricated by using the lithographic methods along with atomic layer deposition (ALD) technique.
Large area nano-grating structures with nano-channels, partially filled nano-channles and fully-filled nano-channels were fabricated for various optical and sensing applications. Nano-optical devices, such as deep-UV to IR polarizers, retarders, nano- and micro- lens arrays, based on dielectric, metal and dielectric-metal hybrid materials will be discussed. I will also talk about UV-nanoimprint process which was used to directly pattern plastic sheets to make high performance but low-cost visible polarizers for LCD flat panel application. Enclosed nanofluidic channels with dimensions down to 10 nm for manipulation and analysis of biomolecules such as DNA and proteins at single molecule resolution, as well as refractive index sensing, will be also discussed.
BIOGRAPHY
Dr. Jian Jim Wang ([email protected]) is the Chief Technical Officer (CTO) of NanoOpto Corp. in New Jersey. He is in charge of all technical R & D work in NanoOpto Corporation. Under his leadership, the company has successfully developed a nano-lithography manufacturing platform and several award-winning commercial products based on nanotechnology. As principal investigator (PI), he has also successfully got over $1.5 million SBIR/STTR phase-I and phase-II small business funding in the past. Dr. Wang has over 15 years of experience in optics, optoelectronics, and nanofabrication. He is one of the world’s experts in nanoimprint lithography and commercial applications. Prior to joining NanoOpto, Dr. Wang was the vice president for technology and the first employee of Nanonex Corporation. Dr. Wang also worked as a lead design engineer at Lucent Technologies and Agere Systems. He was also part of the research staff at Princeton University. Dr. Wang holds a BS in Physics from Fudan University, Shanghai, and a Dr.rer.nat (Ph. D.) in physics from the University of Stuttgart, Germany. Dr. Wang has over 70 scientific publications, 7 patents and over 15 patent applications.
- 129 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Broadband Quantum-Dash Laser: A New Class of Semiconductor Laser
Boon S. Ooi Center for Optical Technologies Electrical and Computer Engineering Department Lehigh University, Bethlehem, PA 18015, USA [email protected]
ABSTRACT
A semiconductor laser generating lasing spectrum crossing multiple communication bands in near-infrared can find useful applications in many engineering fields. To date, most ultra-broadband sources are generated using nonlinear- optical transformations of ultra-short laser pulses, and photonic crystal fiber based approaches. Ultra-broadband generation using these techniques often involves expensive and bulky high-power laser as pump source, and complex filtering systems to generate flat-top or Gaussian shaped broadband spectrum. For many practical applications, a highly compact, high quantum efficiency, low power consumption, and cost effective broadband laser is preferred. In this presentation, we will report the development of a novel broad emission band near-infrared semiconductor laser. This new class of semiconductor laser is fabricated on a highly inhomogeneous InAs-quantum- dash-in-InGaAlAs-quantum-well structure that grown on the InP-substrate. Broadband lasing with the wavelength coverage of over 75 nm at 1640 nm peak wavelength has been demonstrated. We will also discuss the possibility of applying quantum dot/dash intermixing technique to further broaden the emission to cover the wavelength range from 1450nm to 1650nm. The applications of this new class of semiconductor laser in optical telecommunications, sensing, spectroscopy, and bio-imaging including optical coherence tomography will also be discussed.
BIOGRAPHY
Boon S Ooi earned a Ph.D. in Electronics and Electrical Engineering from the University of Glasgow (UK) in 1995. Prior to joining Lehigh University as Associate Professor in 2003, he was Co-founder and Vice President of Technology at Phosistor Technologies Inc. (California) and was Assistant Professor at Nanyang Technological University (Singapore). His research interests are primarily in the development of monolithic integration processes for semiconductor photonic integrated circuits using quantum-well/dot intermixing, and the development of broadband emitters for communications, sensing and imaging applications. He has authored or co-authored of more than 180 papers. He is a senior member of IEEE (USA), and a member of Institute of Physics (UK).
- 130 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC3 − Technical Session: Advanced Optoelectronic Components
Optical Seismic Sensor Array Based on Fiber-Bragg-grating Sensors
Yan Zhang, Hong-Liang Cui Department of Physics and Engineering Physics, Stevens Institute of Technology Castle Point on Hudson, Hoboken, NJ, 07030 [email protected]
ABSTRACT
Fiber Bragg gratings perform the functions of reflection and filtering in a highly efficient, low loss manner in the optical communication system. The fiber Bragg grating also has its intrinsic advantages in fiber optic sensing because it is subject to strain and temperature perturbations, which lead to wavelength dependent reflectivity. In this paper, we introduce an improved design of a fiber-Bragg-grating-based dynamic strain sensor. This sensor is integrated into the carbon-fiber-composite cantilever to detect the seismic signals from the earth. The interrogation scheme and the optical sensor array system design are described in the paper, which take the advantages of the mature technologies in optical communications. The field test results in the oilfield exploration and battle field monitoring show that the fiber-Bragg-grating-based optical sensor array is a promising technology in intruder detection for military and law enforcement personnel, as well as subsurface geologic probing and mineral prospecting using controlled seismic events and precision monitoring systems.
BIOGRAPHY
Yan Zhang obtained her BS and MS degrees majored in optical engineering from Beijing Institute of Technology and PhD in applied optics from Stevens Institute of Technology respectively. After finishing her degree in 2006, currently she works as the postdoctoral research associate in Stevens Institute of Technology. Her research interest includes research and development of fiber optic devices and components in optical sensing and optical communication areas.
- 131 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC4 − Technical Session: Optical Communication Components and Subsystems
Session Chair
Deyu Zhou
Opnext, Inc. 1 Christopher Way Eatontown, NJ 07724 [email protected]
BIOGRAPHY
Dr. Deyu Zhou received his doctorate degree from Princeton University, Department of Electrical Engineering in the area of fiber optic communications and networks. He has published extensively in many different technical journals and conferences in the area of optical components and network systems. He is currently a director of product management in Opnext, Inc. located in Eatontown New Jersey, specializing in optical subassemblies and its applications. Prior to joining Opnext, Dr. Zhou was a Senior Research Scientist at Telcordia Technologies, where he conducted research and development in advanced optical packet switch systems and all optical networks. Dr. Zhou has many years of experiences in both research and development as well as in product realizations in optical component and networking field.
- 132 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC4 − Technical Session: Optical Communication Components and Subsystems
High Bit Rate Optical Data Bus Technologies for Advanced Wireless Handheld Devices
Louay Eldada DuPont Photonics Technologies 100 Fordham Road, Wilmington, MA 01887 [email protected]
ABSTRACT
With the rapidly increasing resolution of displays and cameras in handheld devices, the higher and higher data rates within these devices have been requiring continuous innovation in data bus technologies. Copper interconnects are reaching their bandwidth limits in high-end handhelds including mobile smartphones, personal digital assistants (PDA), portable multimedia players (PMP), and wireless handheld game consoles (e.g., PSP). Emerging applications that require high-bit-rate camera-to-processor and processor-to-display links include live gaming and portable global positioning, as well as capturing and displaying high-resolution images and high-frame-rate videos.
Bit rates as high as 1 Gbps are already needed in the data buses of advanced handheld devices. Electrical interconnects are becoming a bottleneck in these devices, where high bit rate links are formed today with dense parallel copper lines that have electromagnetic interference (EMI) issues, and fine-pitch connectors that are increasingly complex, expensive, and unreliable. EMI has time-to-market implications due to the complexity of the design optimization needed to achieve high performance, and to comply with all federal communications commission (FCC) regulations including frequency allocation, specific absorption rate (SAR), and hearing aid compatibility (HAC).
Optical interconnects in handheld devices can bus high bandwidth signals through a simple serial interface, and they can eliminate the data bus contribution to EMI and SAR. We describe passive and active optical interconnect technologies that enable high-performance optical data buses in handhelds.
BIOGRAPHY
Louay Eldada is the Chief Technology Officer and Vice President of Engineering of DuPont Photonics Technologies. He holds a Ph.D. in optical networking components from Columbia University.
Dr. Eldada started his career at Honeywell, where he founded the Telecom Photonics business unit and managed its product development arm. He held the same position when this business was acquired by Corning. He later founded Telephotonics and served as its Chief Technology Officer and Vice Chairman until it was acquired by DuPont.
Dr. Eldada has authored 200 technical papers and books, presented 120 keynote and invited talks, organized 75 industry conferences, holds 40 patents, and is the recipient of 26 technical awards.
- 133 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC4 − Technical Session: Optical Communication Components and Subsystems
Transitions from R&D to Product Realization — Opportunities and Challenges for Optical Component Industries
Deyu Zhou Opnext, Inc. 1 Christopher Way Eatontown, NJ 07724 [email protected]
ABSTRACT
As data and telecommunications industries drive for higher quality and lower costs products, there are tremendous demands for bandwidth for optical networks and data storages. Optical component industries not only have brought tremendous technology innovations and high performance products into optical networking and communication markets, but also provide those quality products with decreasing costs to its customers. That success in optical components inspires system suppliers to achieve next generation products with expectation of ever decrease costs in optical components. For example, the Fiber Channel community has been very successful doubling its operating bit rates from FC to 2xFC and most recently from 2xFC to 4xFC within a very short time period while minimizing cost increases. These successes in doubling its speed with little added cost encourage them to achieve 8xFC operation with similar expectation in cost of an 8xFC transceiver module. Opportunities and challenges for optical component industries to strike a balance between performances and product costs through innovation research and development in conjunction with great product realization team. In this article, we will discuss a few approaches to address those opportunities and challenges.
BIOGRAPHY
Dr. Deyu Zhou received his doctorate degree from Princeton University, Department of Electrical Engineering in the area of fiber optic communications and networks. He has published extensively in many different technical journals and conferences in the area of optical components and network systems. He is currently a director of product management in Opnext, Inc. located in Eatontown New Jersey, specializing in optical subassemblies and its applications. Prior to joining Opnext, Dr. Zhou was a Senior Research Scientist at Telcordia Technologies, where he conducted research and development in advanced optical packet switch systems and all optical networks. Dr. Zhou has many years of experiences in both research and development as well as in product realizations in optical component and networking field.
- 134 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC4 − Technical Session: Optical Communication Components and Subsystems
Nonlinear Silicon Photonics and Its Application in On-chip Optical Interconnection Networks
Xiaogang Chen Columbia University 1300 S.W. Mudd, 500 W. 120th Street, New York, NY 10027 [email protected]
ABSTRACT
Silicon photonics has attracted a great deal of attention in recent years especially after the development of SOI material platform and the demonstration of active silicon photonic devices, such as silicon Raman amplifier and silicon Raman lasers. The high index contrast of SOI-based silicon photonic devices enables very small footprint and can be readily fabricated on the same chip with electronic components. Therefore, silicon photonic integrated circuits (PICs) can be seamlessly integrated with matured VLSI electronic components.
Silicon has intrinsically much larger nonlinear coefficients. The reduced devices size and the tight light confinement further enhance the nonlinear effects in silicon waveguides. On the other hand, the total dispersion effects in the silicon waveguides that has very small cross-section (<0.1µm2) are primarily determined by the waveguide dispersion. This opens the opportunity for dispersion engineering.
With all these features, the pulse dynamics in silicon photonic devices can be very complex. For the simplest silicon photonic device, which is the ultra-thin straight waveguide or silicon photonic wire, full theoretical model of the pulse dynamics in silicon photonic wire shows great similarity to that of the optical fiber, but in a much smaller length scale.
We theoretically and experimentally investigated the nonlinear effects, such as self-phase modulation, cross-phase modulation, four-wave mixing, stimulated Raman scattering, in silicon photonic wire. Some applications that take advantage of these nonlinear effects will be discussed. A more current initiative is to use silicon photonic devices to build an on-chip optical interconnection network. As part of that effort, I will present some of our latest experimental results that show ultra-high bandwidth transmission through typical chip-size-long silicon photonic wires.
BIOGRAPHY
Mr. Xiaogang Chen received the B.Sc. and M.S. degrees from the Physics Department, University of Science and Technology of China, Hefei, China, in 1995 and 1997, respectively. He is currently working toward the Ph.D. degree in electrical engineering at Columbia University, New York. He is expecting to get his PhD in June 2007. He was a Member of Technical Staff of Lucent Technologies, Inc. from 1999 to 2002.
His research interests include nonlinear optics, integrated optics, silicon Raman lasers, fiber optical communication systems, optical interconnection networks, near field optics and optical tweezers. He has 15 peer reviewed journal publications and 17 conference talks or publications.
Mr. Chen is a student member of the Optical Society of America and the IEEE Lasers and Electro-Optics Society.
- 135 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
OC4 − Technical Session: Optical Communication Components and Subsystems
Radio-Frequency Characteristics of Ultraviolet Optical Links
Jie Deng Electrical and Engineering Department, Lehigh University 5 East Packer Avenue, Bethlehem, PA 18015 [email protected]
ABSTRACT
For the first time, radio-frequency ultraviolet optical link at 370 nm was demonstrated by using solid-state devices. A bandwidth of 60 MHz was achieved with GaN-based light-emitting diodes and photodetectors. This bandwidth appears to be limited by the emitter instead of the detector. These preliminary results suggest that Mb/s or higher UV links are feasible with compact size and low cost.
BIOGRAPHY
Jie Deng graduated from Fudan University, China with a B.S. degree of Material Physics in 2003 and is currently a third-year Ph.D. student of Electrical and Computer Engineering and research assistant of Compound Semiconductor Technology Laboratory at Lehigh University. He has working experience with Philips Semiconductor in China focusing on LCD module assembly process development, and Velox Semiconductor, NJ focusing on Gallium Nitride power devices reliability improvement. His current research interest is on characterization and modeling of Gallium Nitride related optoelectronics and radio-frequency devices.
- 136 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Session
Program Chair
Yu-Dong Yao
Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken, NJ 07030 [email protected]
BIOGRAPHY Yu-Dong Yao received the B.Eng. and M.Eng. degrees from Nanjing University of Posts and Telecommunications, Nanjing, China, in 1982 and 1985, respectively, and the Ph.D. degree from Southeast University, Nanjing, China, in 1988, all in electrical engineering. From 1989 and 1990, he was at Carleton University, Ottawa, Canada, as a Research Associate working on mobile radio communications. From 1990 to 1994, he was with Spar Aerospace Ltd., Montreal, Canada, where he was involved in research on satellite communications. From 1994 to 2000, he was with Qualcomm Inc., San Diego, CA, where he participated in research and development in wireless code-division multiple-access (CDMA) systems. He joined Stevens Institute of Technology, Hoboken, NJ, in 2000, where he is an Associate Professor in the Department of Electrical and Computer Engineering and a Director of the Wireless Information Systems Engineering Laboratory (WISELAB). He holds one Chinese patent and ten U.S. patents. He was a Guest Editor for a special issue on wireless networks for the International Journal of Communication Systems. He is an Associate Editor of IEEE Communications Letters and IEEE Transactions on Vehicular Technology and an Editor for IEEE Transactions on Wireless Communications. His research interests include wireless communications and networks, spread spectrum and CDMA, antenna arrays and beamforming, software defined radio (SDR), and digital signal processing for wireless systems.
- 137 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Session
A Cross-Layer Game Theoretic Solution for Interference Mitigation in Wireless Ad Hoc Networks
Hasan Mahmood and Cristina Comaniciu Stevens Institute of Technology
ABSTRACT
We present a game theoretic cross-layer framework to efficiently mitigate interference in ad-hoc networks. Our solution enforces cooperation between layers, as well as among nodes, through metrics that account for the potential impact of the nodes' individual decisions. We show the convergence of the algorithm at individual and across layers.
A Game Theoretic Approach to Energy Efficiency in Cognitive Networks
Nie Nie+, Cristina Comaniciu+, and Prathima Agrawal* + Stevens Institute of Technology * Auburn University
ABSTRACT
A game theoretic solution for joint channel selection and power allocation in cognitive networks is presented. The proposed algorithm enforces cooperation among nodes in an effort to reduce the overall energy consumption. The joint algorithm converges to a deterministic allocation of channels and powers with a significant performance gain.
A Novel Approach for Extending Storage Area Network (SAN) over Optical Access Network
Si Yin and Nirwan Ansari, New Jersey Institute of Technology
ABSTRACT
After 9/11, Storage Area Network (SAN) emerges as a promising solution for data disaster recovery. We propose an intelligent device to solve the bottleneck of extending SAN over the optical access network. The proposed intelligent extender adopts dynamic resource allocation scheme which greatly enhances the network performance with low cost.
- 138 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Session
Cell Phone Design for the Youth Generation
Eric Bi and Justin Bi Morristown High School, Morris County, New Jersey
ABSTRACT
There are many cell phone designs in marketplace. Most designs are for adults and do not place youth preferences into their consideration. This poster will give several revolutionary designs that will appeal to younger people. The designs focus on external appearance and on input methods consistent with the design.
Comparison of Phase Noise Effect in OFDM and Single-Carrier Frequency Domain Equalization (SC-FDE) Systems
Pan Liu+, Yeheskel Bar-Ness* +Broadcom * New Jersey Institute of Technology
ABSTRACT
Block transmission systems, including both OFDM and SC-FDE, always have a major concern on the sensitivity to phase noise, which is caused by the instability of the local oscillators. In this paper, by setting up several fundamental assumptions for both systems, we conclude that OFDM and SC-FDE can provide same capacity which makes the latter an attractive alternative to the former system with the relief of annoying peak to average power ratio (PAPR) problem. We also show that the two candidates experience the same amount of minimum mean square error (MMSE) and capacity in the presence of phase noise by using a common MMSE filter bank.
Linewidth Enhancement Factor of InAs/InAlGaAs Quantum-dash-in-well Laser
Eric Cheng Chen, Chee-Loon Tan, Yang Wang, Boon S. Ooi, and James C. M. Hwang, Lehigh University
ABSTRACT
Linewidth enhancement factor (LEF) reflects fundamental spectrum properties of a laser. We report measurements of gain, refractive index change and LEF for InAs/InAlGaAs quantum-ashin-well laser on InP substrate that emits at optical telecomm wavelength. Our results show that high performance laser can be fabricated from this novel material system.
- 139 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Session
MAC Protocols for Wireless Sensor Networks
Di Zheng and Yu-Dong Yao Stevens Institute of Technology
ABSTRACT
This poster introduces several MAC protocols designed for wireless sensor networks in recent years. The poster describes how these protocols work in sensor networks and analyzes the advantages and disadvantages of each protocol with regard to energy efficiency, throughput and some other performances.
Multiple Antennas Receiver Initiated Busy Tone Medium Access (MARI-BTMA) Protocol in Decentralized Wireless Network
Zhuo Yang, Didem Kivanc-Tureli, and Uf Tureli Stevens Institute of Technology
ABSTRACT
Media access control design is a very important aspect of wireless network design, which can improve ad-hoc or mesh network throughput significantly. Multiple antennas receiver initiated busy tone medium (MARI-BTMA) is a novel MAC protocol which can realize multiple packets reception (MPR) based on MIMO-OFDM, and can be extended to MAC design of cognitive and dynamic spectrum networks. We introduced a homogeneous mesh network model in this paper to realize MARI-BTMA and evaluate its throughput performance through this model. We compare MARI-BTMA's practical performance with other MAC protocols; RI-BTMA and D-BTMA based on busy tone mechanism, and carrier sensing multiple access with collision avoidance (CSMA/CA). Compared with other MAC protocols' performance, MARI-BTMA in a homogeneous mesh network has much better throughput. Moreover, a scheme to decide optimal threshold of carrier sensing range is also given in this poster.
Properties of Carbon Nanotube/Conducting Polymer Addressable Interconnects
Seon Woo Lee and Haim Grebel New Jersey Institute of Technology
ABSTRACT
We have grown individual carbon nanotube interconnects between pre-determined and addressable electrode tips and wrapped these interconnects with conducting polymers. The morphology, electrical conductivity, photoconductivity, optical properties were studied by Raman spectroscopy, Scanning Electron Microscopy (SEM), photoconductivity measurements, current-voltage (I-V) and current-gate voltage (I-VG) measurements.
- 140 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Poster Session
Source Localization Based on Energy Measurement with Randomly Distributed Sensor Array
Xiaoling Chen and Ufuk Tureli Stevens Institute of Technology
ABSTRACT
In this poster, three source location algorithms (Least-Squares, Constraint Least Squares and Alternating Projection- Multiresolution (APMR)) based on energy measurement using a randomly distributed sensor array are proposed. Simulation and experimental results show that our localization algorithms achieve good performance with greatly computational efficiency.
Semiconductor Photonic Integration Using Cu-doped SiO2 Induced Intermixing
Yun-Hsiang Ding and Vitchanetra Hongpinyo Lehigh University
ABSTRACT
Engineering of bandgap properties of quantum confined heterostructure is key to semiconductor photonic integrated circuits (PICs). In this poster, we will present a universal bandgap engineering technique using Cu-doped SiO2 induced intermixing to create multiple-wavelengths chip. This high yield technology paves a way for the fabrication of practical high density PICs.
Throughput of Broadcast Channels with Outdated Limited Feedback and User Selection
Bo Niu+, Osvaldo Simeone+, Alexander M. Haimovich+ and Oren Somekh* + New Jersey Institute of Technology * Princeton University
ABSTRACT
The downlink of a wireless network, such as a cellular network, is analyzed for K users and a flat fading, Rayleigh channel. The system performance is optimized by exploiting the channel state information (CSI). We address the practical case when only 1-bit of information about the CSI is fed back to the basestation, and there is a delay between when the CSI is measured and when the information is used. We show that, surprisingly, limiting the CSI feedback to 1 bit and delaying it does not affect the scaling law of the throughput with the number of users.
- 141 - The 16th Annual Wireless and Optical Communications Conference − April 27-28, 2007, NJ, USA
Conference Participants
DuPont Photonics Technologies
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