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Orinoco PC Card
band Connection TM PC Card User’s Guide Copyright © 2000 Lucent Technologies Inc. All Rights Reserved 012459/C August 2000 Your Mobile Broad Table of Contents Table of Contents 1 About ORiNOCO Kit Contents 1-1 ORiNOCO Network Scenarios 1-3 I Peer-to-Peer Workgroup 1-3 I Home Networking 1-5 I Enterprise Networking 1-6 I It’s Easy 1-8 ORiNOCO PC Card Features 1-9 I ORiNOCO PC Card Types 1-10 About the Software CD-ROM 1-12 Optionally Available 1-16 I ORiNOCO Adapter Cards 1-16 I External Antennas 1-16 2 Installation for Windows Introduction 2-1 Insert your ORiNOCO PC Card 2-5 iORINOCO PC Card - User’s Guide i Table of Contents Install Drivers 2-6 I Before You Start the Installation 2-6 I What You Need to Know 2-6 I Driver Installation for Windows 95/98 2-7 I Windows Network Properties 2-9 Set Basic Parameters 2-11 I Basic Settings for Enterprise Networks 2-13 I Basic Settings for Residential Gateways 2-15 I Basic Settings for Peer-to-Peer Workgroups 2-17 Finish the Installation 2-19 I After Restarting Your Computer 2-20 3 Using ORiNOCO and Windows Introduction 3-1 Using your PC Card 3-2 I Radio Antennas 3-2 I Removing the PC Card 3-2 I Maintenance of your PC Card 3-4 View Other Computers 3-5 Using the Client Manager 3-7 I View Wireless Link Quality 3-7 I View/Modify PC Card Settings 3-9 Finding More Information 3-11 ii ORINOCO PC Card - User’s Guide Table of Contents 4 Advanced Configurations Introduction 4-1 I Encryption Parameters Tab 4-1 I Advanced Parameters Tab 4-3 I Admin Parameters Tab 4-4 A Card Specifications I Physical Specifications -
Internet Telephony Over Wireless Links
Internet Telephony over Wireless Links vorgelegt von Diplom-Ingenieur Christian Hoene von der Fakult¨at IV - Elektrotechnik und Informatik der Technischen Universit¨at Berlin zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften – Dr.-Ing. – genehmigte Dissertation Promotionsausschuss: Vorsitzender: Prof. Dr. Heiß Berichter: Prof. Dr.-Ing. Wolisz Berichter: Prof. Dr.-Ing. Steinmetz Berichter: Prof. Dr.-Ing. Sikora Tag der wissenschaftlichen Aussprache: 16. Dezember 2005 Berlin 2006 D83 c 2005-2006 by Christian Hoene Jahnstr. 22 72144 Dußlingen Germany [email protected] As a small child, you never spoke that clearly, no wonder that you want to improve the speech perceptibility. My mother, after hearing my thesis topic. Abstract This thesis presents algorithms to enhance the efficiency of packetized, interactive speech communication over wireless networks. The results achieved are the following: We present an improved approach to assess the quality of voice transmissions in IP-based communication networks. We combined the ITU E-Model, the ITU PESQ algorithm, and various codec and playout schedulers to analyse VoIP traces. Parts of this algorithm have been included in ITU standards. By using this assessment approach we derived design guidelines for application and data-link protocols. Also, we developed a quality model to parametrise adaptive VoIP applications. Later results received a best-paper award. If highly compressed packetized speech is transported over packet networks, losses of in- dividual packets impair the perceptual quality of the received stream differently, depending on the content and context of the lost packets. We introduce the idea of the Importance of Individual Packets, which is defined by the impact of VoIP packet loss on speech quality. -
UNITED STATES SECURITIES and EXCHANGE COMMISSION Washington, D.C
Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 Commission File Number 001-00395 NCR CORPORATION (Exact name of registrant as specified in its charter) Maryland 31-0387920 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 3097 Satellite Boulevard Duluth, Georgia 30096 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code: (937) 445-5000 Securities registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which registered Common Stock, par value $.01 per share New York Stock Exchange Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES x NO ¨ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 (d) of the Act. YES ¨ NO x Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES x NO ¨ Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). -
315 Random-Sequential Computer System, 1960
IF RANDOM- SEQUENTIAL COMPUTER SYSTEM NCR provides a practical Price -Performance Ratio Price-Performance is the only accurate measure for evaluating computers. Transaction for transaction the NCR 315 does more work for less money. low-cost, high-performance is the cornerstone of design in the 315. keeps system price down The 315 keeps system cost down with a unique magnetic file system. requires fewer files. .reduces the cost of random type memory. The 315 keeps cost down through a high degree of expansibility. permits tailoring a system to your needs at the lowest possible cost. The 315 keeps cost down through efficient use of COBOL and other automatic coding techniques . .reduces overall programming costs. The 315 keeps cost down through an attractive lease arrangement and a low purchase price. keeps system performance up a The NCR 315 keeps system performance up through unmatched proc- essing flexibility.. permits each application to be processed in the most e5cient manner. The 315 keeps performance up through a high-speed internal operation, balanced by the proper combination of high-speed input-output units. The 315 keeps performance up through automatic program interrupt feature. keeps input-output units operating at maximum rate. re- sults in more efficient utilization of processor time. a The 315 keeps performance up through a powerful command structure . designed specifically for high-speed business data processing. Card Random Access Memory a unique magnetic file system CRAM, an NCR 315 exclusive, uses mylar magnetic cards for data storage. In effect, seven 14-inch strips of magnetic tape have been placed side by side to form the magnetic card. -
The Spirit of Wi-Fi
Rf: Wi-Fi_Text Dt: 09-Jan-2003 The Spirit of Wi-Fi where it came from where it is today and where it is going by Cees Links Wi-Fi pioneer of the first hour All rights reserved, © 2002, 2003 Cees Links The Spirit of Wi-Fi Table of Contents 0. Preface...................................................................................................................................................1 1. Introduction..........................................................................................................................................4 2. The Roots of Wi-Fi: Wireless LANs...................................................................................................9 2.1 The product and application background: networking ..............................................................9 2.2 The business background: convergence of telecom and computers? ......................................14 2.3 The application background: computers and communications ...............................................21 3. The original idea (1987 – 1991).........................................................................................................26 3.1 The radio legislation in the US .................................................................................................26 3.2 Pioneers .....................................................................................................................................28 3.3 Product definition ......................................................................................................................30 -
MQP Template
A Green Approach to a Multi-Protocol Wireless Communications Network A Major Qualifying Project Submitted to the Faculty of Worcester Polytechnic Institute in partial fulfillment of the requirements for the Degree in Bachelor of Science in Electrical and Computer Engineering By __________________________________ Travis Collins __________________________________ Patrick DeSantis __________________________________ David Vecchiarelli Date: 3/15/11 Sponsoring Organization: University of Limerick: Project Advisors: __________________________________ Professor Alexander Wyglinski, Advisor This report represents work of WPI undergraduate students submitted to the faculty as evidence of a degree requirement. WPI routinely publishes these reports on its web site without editorial or peer review. For more information about the projects program at WPI, see http://www.wpi.edu/Academics/Projects. 1 Abstract The goal of this project is to increase the battery life of mobile wireless devices. This is achieved by having the wireless device select between two wireless protocols, ZigBee and Wi-Fi, based on transmission energy and bandwidth requirements. Using the concepts of sensing and adaptation from cognitive radio, the system monitors the bandwidth and selects the lowest power intensive wireless protocol while still maintaining an acceptable quality of service for the desired task. 2 Acknowledgements Without the help from certain individuals the completion of this project would not have been possible. Some of these people have helped us by giving us guidance while others have helped us by supplying us the resources to get us through the day. First, we would like to thank Worcester Polytechnic Institute and the Interdisciplinary and Global Studies Division for making the necessary arrangements for us to come to Ireland and because without them we would not have been given the opportunity to study in Ireland. -
DCMA : a Label Switching MAC for Efficient Packet Forwarding in Multi-Hop Wireless Networks
RC23210 (W0405-062) May 12, 2004 Computer Science IBM Research Report DCMA : A Label Switching MAC for Efficient Packet Forwarding in Multi-Hop Wireless Networks Arup Acharya, Sachin Ganu*, Archan Misra IBM Research Division Thomas J. Watson Research Center P.O. Box 704 Yorktown Heights, NY 10598 *WINLAB Rutgers University Piscataway, NJ 08854 Research Division Almaden - Austin - Beijing - Haifa - India - T. J. Watson - Tokyo - Zurich LIMITED DISTRIBUTION NOTICE: This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. I thas been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g ,. payment of royalties). Copies may be requested from IBM T. J. Watson Research Center , P. O. Box 218, Yorktown Heights, NY 10598 USA (email: [email protected]). Some reports are available on the internet at http://domino.watson.ibm.com/library/CyberDig.nsf/home . DCMA: A Label Switching MAC for efficient packet forwarding in multi-hop wireless networks Arup Acharya Sachin Ganu Archan Misra IBM T.J.Watson Research WINLAB, Rutgers University, IBM T.J.Watson Research Center, Hawthorne, NY Piscataway, NJ 08854 Center, Hawthorne, NY Abstract This paper addresses the problem of efficient packet forwarding in a multi-hop, wireless “mesh” network. We first explain how the packet forwarding operation in the wireless broadcast medium differs from that of a router in wired network, which typically switches packets across multiple network interfaces. -
Creativity – Success – Obscurity
Author Gerry Pickering CREATIVITY – SUCCESS – OBSCURITY UNIVAC, WHAT HAPPENED? A fellow retiree posed the question of what happened. How did the company that invented the computer snatch defeat from the jaws of victory? The question piqued my interest, thus I tried to draw on my 32 years of experiences in the company and the myriad of information available on the Internet to answer the question for myself and hopefully others that may still be interested 60+ years after the invention and delivery of the first computers. Computers plural, as there were more than one computer and more than one organization from which UNIVAC descended. J. Presper Eckert and John Mauchly, located in Philadelphia PA are credited with inventing the first general purpose computer under a contract with the U.S. Army. But our heritage also traces back to a second group of people in St. Paul MN who developed several computers about the same time under contract with the U.S. Navy. This is the story of how these two companies started separately, merged to become one company, how that merged company named UNIVAC (Universal Automatic Computers) grew to become a main rival of IBM (International Business Machines), then how UNIVAC was swallowed by another company to end up in near obscurity compared to IBM and a changing industry. Admittedly it is a biased story, as I observed the industry from my perspective as an employee of UNIVAC. It is also biased in that I personally observed only a fraction of the events as they unfolded within UNIVAC. This story concludes with a detailed account of my work assignments within UNIVAC. -
IEEE 802.11Ax
Survey and Performance Evaluation of the Upcoming Next Generation WLAN Standard - IEEE 802.11ax Qiao Qu1, Bo Li1, Member, IEEE, Mao Yang*1, Member, IEEE, Zhongjiang Yan1, Member, IEEE, Annan Yang1, Jian Yu2, Ming Gan2, Yunbo Li2, Xun Yang2, Osama Aboul-Magd2, Senior Member, IEEE, Edward Au2, Senior Member, IEEE, Der-Jiunn Deng3, Member, IEEE, and Kwang-Cheng Chen4, Fellow, IEEE 1School of Electronics and Information, Northwestern Polytechnical University, Xi’an, China. 2Huawei Technologies Co., Ltd., China. 3the Department of Computer Science and Information Engineering, National Changhua University of Education, Changhua, Taiwan. 4the Department of Electrical Engineering, University of South Florida, Florida, USA. Abstract —With the ever-increasing demand for wireless traffic and quality of serives (QoS), wireless local area networks (WLANs) have developed into one of the most dominant wireless networks that fully influence human life. As the most widely used WLANs standard, Institute of Electrical and Electronics Engineers (IEEE) 802.11 will release the upcoming next generation WLANs standard amendment: IEEE 802.11ax. This article comprehensively surveys and analyzes the application scenarios, technical requirements, standardization process, key technologies, and performance evaluations of IEEE 802.11ax. Starting from the technical objectives and requirements of IEEE 802.11ax, this article pays special attention to high-dense deployment scenarios. After that, the key technologies of IEEE 802.11ax, including the physical layer (PHY) enhancements, multi-user (MU) medium access control (MU-MAC), spatial reuse (SR), and power efficiency are discussed in detail, covering both standardization technologies as well as the latest academic studies. Furthermore, performance requirements of IEEE 802.11ax are evaluated via a newly proposed systems and link-level integrated simulation platform (SLISP). -
ABSTRACT CO-RESIDENT OPERATING SYSTEMS TASK TEAM REPORT April 181 1973
ABSTRACT CO-RESIDENT OPERATING SYSTEMS TASK TEAM REPORT THIS DOCUI-lENT CONTAINS INFORl-lATiON PROPRIETARY TO THE NATIONAL CASH REGISTER COfoIPAflY AND CONTROL DATA CORPORATION. ITS CONTENTS SHALL NOT BE DIVULGED OUTSIDE OF EITHER CO~lPANY NOR REPROD~CED mTHOUT EXPLICIT PERloJISSION OF THE DIRECTOR AND GENERAL r-lANAGER. NCRICDC ADVANCED SYSTEfolS LABORATORY. April 18 1 1973 · 1 The mission of the co-resident oper.al"ing system task group was: "To define a cost effective mechamism within the new operating system to allow selected 01 d operating syst'ems to operate in their entirety permitting simultaneous execution with no modifications to the old operating system". Four people were assigned to this task, I:wo from NCR wifh ,expBrience on/he NCi\/Century and two from CDC experienced with CYI3ER 70 computer systems. The scope of the probl em was narrowed to a point where productive OLltput could be obtained in the allotted time frame. It was decided the' time could be spent most profitably in a detailad study of emulating the .NCR Century computer systems ,on the IPL.·· This decision was heavily influen'ced by a desire to deal with specific problems , ' ral·her·than'philosophi'cal-cmd incondusive'mattcrs. It was also:f.;:;lt thut The productivity of the team would be greater if it were kept s.mall •. Having limited the problom in scope, vario~sassumptions h.od t:)bo made bdore furi-h.:,:,r progress could be accompl ished. Key in this area wes the assumption thar. ;h:; probkm wos soluble. As a result I Ihe team concentroted on how to effect Iheimp\ernentation, as opposed j'O if if' was possibl e. -
And Automation
· September, 1966 ~rs and automation £Gtt5 lV) \1N33\1~ l'n. , A ""IVA "'va -'fd Simulator for computer operation ~ I Clark Equipment Company gets data from 127 sales offices, 4 manufacturing plants, and a major warehouse as soon as it's recorded Bell System communications is the vital link Bell System data communications services link one standard code. Other features of the switching Clark's'distant locations to a centralized computer unit provide the necessary supervisory control of the center at Buchanan, Michigan. The result is better network. management control of all activities-sales, inventory, Consider the economies a real-time, integrated purchasing, production, payroll and accounting. information system can bring to your business with With current and accurate information, Clark man automatic data processing linked with fast, reliable agement can quickly adjust to changing marketing communications. conditions. Important orders get priority scheduling Today's dynamic competition requires many com for production and shipment. And yet, purchasing, panies to consider organizing for data processing in production and inventories stay at optimum levels. some phase of their operations. It's important to start An integrated information system of this size uses organizing communications at the same time. computer switching with store and forward capabilities. So when you think of data communications, think The fully automatic Clark system polls satellite stations, of the Bell System. Our Communications Consultant receives and transmits messages, assigns priorities, is ready and able to help you plan an integrated and converts different speed and code formats to information system. "BeIiSystem ~ American ~elephone & T,elegraph A n& T@ and Associated Companies Treadcarefu ~Iy through the quences read, compile, library, and jungl eot. -
Linux Wireless LAN Howto 1 Introduction
< Linux Wireless LAN Howto > Linux Wireless LAN Howto Jean Tourrilhes 3 April 01 Linux & Wireless LANs : Un*x, with no string attached... 1 Introduction This document will explore the magical world of Wireless LANs and Linux. Wireless LAN is not a very widespread and well known technology, even in the Linux world, so we will try to gather here most of the available information. Despite the fact that it is very similar to common networking technologies, it is significantly different to justify this specific document covering the subject. 1.1 What is a Wireless LAN ? It’s a networking technology allowing the connection of computers without any wires and cables (apart from the mains), mostly using radio technology (and sometime infrared). It’s called LAN (Local Area Network) because the range targeted is small (within an office, a building, a store, a small campus, a house...). This technology is slowly growing (I should say maturing), and despite a general lack of interest, Linux is able to take advantage of some of the wireless networks available. 1.2 Content of this document My first task is to talk a bit about the different Wireless LANs options under Linux. What the products on the market are, their compatibility with Linux and where to find the necessary bits and pieces to make them work. This should help you to make your mind on the product of your dreams. Once you’ve picked a Wireless LAN, you will have to live with it. The next chapter go through the main differences of Wireless LAN compared to other networking technologies.