Technologies and Approaches for Meeting the Demand for Wireless Data Using Licence Exempt Spectrum to 2022
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Upcoming Standards in Wireless Local Area Networks
Preprint: http://arxiv.org/abs/1307.7633 Original Publication: UPCOMING STANDARDS IN WIRELESS LOCAL AREA NETWORKS Sourangsu Banerji Department of Electronics & Communication Engineering, RCC-Institute of Information Technology, India Email: [email protected] ABSTRACT: Network technologies are However out of every one of these standards, traditionally centered on wireline solutions. WLAN and recent developments in WLAN Wireless broadband technologies nowadays technology will be our main subject of study in this particular paper. The IEEE 802.11 is the most provide unlimited broadband usage to users widely deployed WLAN technology as of today. that have been previously offered simply to Another renowned counterpart is the HiperLAN wireline users. In this paper, we discuss some of standard by ETSI. These two technologies are the upcoming standards of one of the emerging united underneath the Wireless Fidelity (Wi-fi) wireless broadband technology i.e. IEEE alliance. In literature though, IEEE802.11 and Wi- 802.11. The newest and the emerging standards fi is used interchangeably and we will also continue with the same convention in this fix technology issues or add functionality that particular paper. A regular WLAN network is will be expected to overcome many of the associated with an Access Point (AP) in the current standing problems with IEEE 802.11. middle/centre and numerous stations (STAs) are connected to this central Access Point (AP).Now, Keywords: Wireless Communications, IEEE there are just two modes in which communication 802.11, WLAN, Wi-fi. normally takes place. 1. Introduction Within the centralized mode of communication, The wireless broadband technologies were communication to/from a STA is actually carried developed with the objective of providing services across by the APs. -
Understanding Technology Options for Deploying Wi-Fi
Understanding Technology Options for Deploying Wi-Fi How Wi-Fi Standards Influence Objectives A Technical Paper prepared for the Society of Cable Telecommunications Engineers By Derek Ferro VP Advanced Systems Engineering Ubee Interactive 8085 S. Chester Street Suite 200 Englewood, CO 80112 [email protected] Bill Rink Senior Director Product Management Ubee Interactive 8085 S. Chester Street Suite 200 Englewood, CO 80112 [email protected] www.ubeeinteractive.com Introduction As Wi-Fi technology evolves at an exponential pace, Operators must understand available Wi-Fi standards in order to make the best business decisions when purchasing and deploying new wireless gateways (i.e. performance versus cost). This paper will discuss the migration from 802.11b, 802.11g, 802.11a, 802.11n and most recently the push to 802.11ac. It will also discuss the advancement of MIMO antenna technology from 1x1, 2x2, 3x3 and even 4x4. Many questions will be addressed: • What are the complexities of advanced MIMO? • When to implement which MIMO configuration? • What are alternative options for improving performance (power amplification, improved receive amplifiers, etc.)? • When should single band, dual-band selectable or dual-band concurrent gateways be deployed? • When examining the US residential market, what is the penetration of 2.4GHz, 5GHz, and dual-band homes, and what are the emerging trends in the marketplace? We hope to demystify the complexity surrounding Wi-Fi and look at the trade-offs in performance and cost presented by each option. www.ubeeinteractive.com Alphabet Soup: Understanding Wi-Fi Standards The Evolution of 802.11 Standards 802.11 technology has its origins in a 1985 ruling by the U.S. -
802.11 Alternate Phys February 2018
CWNP 802.11 Alternate PHYs February 2018 802.11 Alternate PHYs A whitepaper by Ayman Mukaddam ©2018 CWNP, LLC CWNP Page 1 of 12 1005 Slater Road, Suite 101 • Durham, NC 27703 866-438-2963 • www.cwnp.com CWNP 802.11 Alternate PHYs February 2018 Contents Modern 802.11 Amendments ....................................................................................................................... 3 Traditional PHYs Review (2.4 GHz and 5 GHz PHYs) ..................................................................................... 3 802.11ad Directional Multi-Gigabit - DMG PHY ............................................................................................ 4 Frequency Band Used ............................................................................................................................... 4 Channel Plans ............................................................................................................................................ 5 Modulation Methods and Data Rates ....................................................................................................... 5 Use Cases .................................................................................................................................................. 6 802.11af TV High Throughput (TVHT) PHY ................................................................................................... 8 Frequency Band Used .............................................................................................................................. -
W110 Wigig® Chipset Overview Features Application Diagram
W110 WiGig Chipset Product Brief 2015‐12‐23 Overview The Peraso W110 chipset is targeted for WiGig applications and employs the PRS1125 and PRS4001 integrated circuits to implement the necessary IEEE 802.11ad functionality. The W110 chipset implements a complete SuperSpeed USB 3.0 to WiGig solution. The PRS4001 Low Power WiGig Baseband incorporates the Analog Front End, BB PHY/MAC, and two RISC CPU cores. The PRS1125 is a single chip direct conversion RF transceiver providing 60 GHz single‐ended receiver and transmit antenna interfaces. The chipset is ideal for wireless storage, wireless display, and multi‐gigabit mobile wireless applications. Features PRS4001 Low Power Baseband PRS1125 High Performance WiGig Radio IEEE 802.11ad compliant Tx output power: Up to +14 dBm Fully integrated AFE, PHY and MAC Better than ‐21 dB transmit EVM (16‐QAM) Highly flexible, dual CPU soft MAC integrates WiGig Receiver noise figure: < 5 dB MAC functions Receiver conversion gain > 70 dB PHY supports MCS0 to MCS12 (4.62 Gb/s) Integrated single‐ended 60 GHz antenna interfaces 2 Gb/s link at 10m (MCS8) PLL tunes to all channels of IEEE 802.11ad 1 Gb/s at 20m (MCS4) specifications using integrated XO 0.8 mm thick, 7mm × 7mm BGA 6mm × 6mm BGA Package Application Diagram Status LED Serial Flash Tx Antenna 2.5V 1.8V CPF 1.2V PWM SPI PRS4001 REFCLK 3.3V (USB) PRS1125 Bias 2.5V (IO) Peripherals MAC PHY AFE 1.1V (Core) SPI, I2C, PWM, UART, GPIO, LSADC, Upper MAC Memory DAC TX_I XREF1 JTAG (640K) WiGig PHY Tx Path Tx Data Path PLL USB 3.0 Upper MAC CPU DAC TX_Q XREF2 45 MHz USB 3 USB 3.0 Packet Buffer MAC/PHY IF PHY and Device/ PLL Digital AGC VCO XO Host Shared Memory GCMP (AES) (592K) USB 2 Encryption USB 2.0 PHY ADC RX_Q Lower MAC CPU Configuration WiGig PHY Rx Data Path and GPIO Lower MAC Memory Rx Path Control ADC RX_I GPIO (optional), SPI 256K SPI Radio Control SPI Rx Antenna Revision 0.15.12 © 2015 Peraso Technologies. -
Medium Access Control for 60 Ghz Wireless Networks: a Comparative Review
International Journal of Control and Automation Vol. 8, No. 4 (2015), pp. 421-434 http://dx.doi.org/10.14257/ijca.2015.8.4.39 Medium Access Control for 60 GHz Wireless Networks: A Comparative Review Rabin Bhusal1 and Sangman Moh2 1I&M Team, Telstra Corporation, Perth, Australia 2Dept. of Computer Eng., Chosun Univ., Gwangju, Korea [email protected], [email protected] Abstract The 60 GHz wireless networks enable multi-Gbps local communications. With opportunities, however, there are many challenges because the physical wave characteristics of the 60 GHz band are quite different from those of the currently used 2.4 GHz and 5 GHz ISM bands. Moreover, there are many hot issues associated with the MAC (Medium Access Control) layer as the directional MAC protocols proposed for 2.4 GHz and 5 GHz cannot be directly implemented on the 60 GHz frequency because of different characteristics of the millimeter waves. However, no review on MAC for 60 GHz wireless networks has been reported in the literature. In this paper, we comparatively review standards and protocols of MAC in 60 GHz wireless networks for multi-Gbps communications. Opportunities and challenges are also discussed. Keywords: 60 GHz, millimeter wave, multi-Gbps, medium access control, directional antenna, ISM band. 1. Introduction Wireless local area networks (WLANs) based on IEEE 802.11 standards, also commercially known as Wi-Fi, have become an integral part of our daily living, and this technology is being integrated into many devices like smart phones, laptops, and other consumer electronics. The rapid increase of throughput from 2 Mbps in 802.11 to as much as 600 Mbps in 802.11n has provided many opportunities and led to a new goal to achieve speeds in the Gbps range. -
C:\Andrzej\PDF\ABC Nagrywania P³yt CD\1 Strona.Cdr
IDZ DO PRZYK£ADOWY ROZDZIA£ SPIS TREFCI Wielka encyklopedia komputerów KATALOG KSI¥¯EK Autor: Alan Freedman KATALOG ONLINE T³umaczenie: Micha³ Dadan, Pawe³ Gonera, Pawe³ Koronkiewicz, Rados³aw Meryk, Piotr Pilch ZAMÓW DRUKOWANY KATALOG ISBN: 83-7361-136-3 Tytu³ orygina³u: ComputerDesktop Encyclopedia Format: B5, stron: 1118 TWÓJ KOSZYK DODAJ DO KOSZYKA Wspó³czesna informatyka to nie tylko komputery i oprogramowanie. To setki technologii, narzêdzi i urz¹dzeñ umo¿liwiaj¹cych wykorzystywanie komputerów CENNIK I INFORMACJE w ró¿nych dziedzinach ¿ycia, jak: poligrafia, projektowanie, tworzenie aplikacji, sieci komputerowe, gry, kinowe efekty specjalne i wiele innych. Rozwój technologii ZAMÓW INFORMACJE komputerowych, trwaj¹cy stosunkowo krótko, wniós³ do naszego ¿ycia wiele nowych O NOWOFCIACH mo¿liwoYci. „Wielka encyklopedia komputerów” to kompletne kompendium wiedzy na temat ZAMÓW CENNIK wspó³czesnej informatyki. Jest lektur¹ obowi¹zkow¹ dla ka¿dego, kto chce rozumieæ dynamiczny rozwój elektroniki i technologii informatycznych. Opisuje wszystkie zagadnienia zwi¹zane ze wspó³czesn¹ informatyk¹; przedstawia zarówno jej historiê, CZYTELNIA jak i trendy rozwoju. Zawiera informacje o firmach, których produkty zrewolucjonizowa³y FRAGMENTY KSI¥¯EK ONLINE wspó³czesny Ywiat, oraz opisy technologii, sprzêtu i oprogramowania. Ka¿dy, niezale¿nie od stopnia zaawansowania swojej wiedzy, znajdzie w niej wyczerpuj¹ce wyjaYnienia interesuj¹cych go terminów z ró¿nych bran¿ dzisiejszej informatyki. • Komunikacja pomiêdzy systemami informatycznymi i sieci komputerowe • Grafika komputerowa i technologie multimedialne • Internet, WWW, poczta elektroniczna, grupy dyskusyjne • Komputery osobiste — PC i Macintosh • Komputery typu mainframe i stacje robocze • Tworzenie oprogramowania i systemów komputerowych • Poligrafia i reklama • Komputerowe wspomaganie projektowania • Wirusy komputerowe Wydawnictwo Helion JeYli szukasz ]ród³a informacji o technologiach informatycznych, chcesz poznaæ ul. -
Toward a Reliable Network Management Framework
TOWARD A RELIABLE NETWORK MANAGEMENT FRAMEWORK A DISSERTATION IN Computer Networking and Communications Systems and Economics Presented to the Faculty of the University of Missouri–Kansas City in partial fulfillment of the requirements for the degree DOCTOR OF PHILOSOPHY by HAYMANOT GEBRE-AMLAK University of Missouri - Kansas City Kansas City, Missouri 2018 © 2018 HAYMANOT GEBRE-AMLAK ALL RIGHTS RESERVED TOWARD A RELIABLE NETWORK MANAGEMENT FRAMEWORK Haymanot Gebre-Amlak, Candidate for the Doctor of Philosophy Degree University of Missouri–Kansas City, 2018 ABSTRACT As our modern life is very much dependent on the Internet, measurement and management of network reliability is critical. Understanding the health of a network via outage and failure analysis is especially essential to assess the reliability of a network, identify problem areas for network reliability improvement, and characterize the network behavior accurately. However, little has been known on characteristics of node outages and link failures in access networks. In this dissertation, we carry out an in-depth outage and failure analysis of a university campus network using a rich set of node outage and link failure data and topology information over multiple years. We investigated the diverse statistical characteristics of both wired and wireless networks using big data analytic tools for network management. Furthermore, we classify the different types of network failures and management issues and their strategic resolution. iii While the recent adoption of Software-Defined Networking (SDN) and softwariza- tion of network functions and controls ease network reliability, management, and vari- ous network-level service deployments, the task of monitoring network reliability is still very challenging. -
PRS4000/PRS1025 60 Ghz Wigig Chipset
PRS4000/PRS1025 60 GHz WiGig Chipset Product Brief 2015‐03‐01 Overview The PRS4000 and PRS1025 comprise a highly integrated 60 GHz chipset compliant with the IEEE 802.11ad specifications. The two integrated circuits implement a complete SuperSpeed USB 3.0 to WiGig solution. The PRS4000 Low Power WiGig Baseband incorporates the Analog Front End, BB PHY/MAC, and two RISC CPU cores. The PRS1025 is a single chip RF IC incorporating an integrated antenna of 8.5 dBi peak gain. The chipset is ideal for wireless display, wireless docking, and multi‐gigabit mobile wireless applications. Features PRS4000 Low Power Baseband PRS1025 High Performance WiGig Radio IEEE 802.11ad compliant Tx output power: Up to +22.5 dBm EIRP Fully integrated AFE, PHY and MAC Better than ‐21 dB transmit EVM (16‐QAM) Highly flexible, dual CPU soft MAC integrates WiGig Receiver noise figure: < 5 dB MAC functions Receiver conversion gain > 70 dB PHY supports MCS0 to MCS12 (4.62 Gb/s) Integrated 8.5dBi Tx and Rx antennas 2 Gb/s link at 10m (MCS8) PLL tunes to all channels of IEEE 802.11ad 1 Gb/s at 20m (MCS4) specifications using integrated XO 0.8 mm thick, 7mm × 7mm BGA 0.7 mm thick, 7mm × 7mm BGA Package Application Diagram Status LED Serial Flash 2.5V 1.8V CPF 1.2V PWM SPI PRS4000 REFCLK PRS1025 3.3V (USB) Tx Antenna Bias 2.5V (IO) Peripherals MAC PHY AFE 1.1V (Core) SPI, I2C, PWM, UART, GPIO, LSADC, Upper MAC Memory DAC TX_I XREF1 JTAG (640K) WiGig PHY Tx Path Tx Data Path PLL USB 3.0 Upper MAC CPU DAC TX_Q XREF2 45 MHz USB 3 USB 3.0 Packet Buffer MAC/PHY IF PHY and Device/ PLL Digital AGC VCO XO Host Shared Memory GCMP (AES) (416K) USB 2 Encryption USB 2.0 PHY ADC RX_Q Lower MAC CPU Configuration WiGig PHY Rx Data Path and GPIO Lower MAC Memory Rx Path Control ADC RX_I GPIO (optional), SPI 192K SPI Radio Control Rx Antenna SPI Revision 0.15.03 © 2015 Peraso Technologies. -
Upcoming Standards in Wireless Local Area Networks
Preprint: http://arxiv.org/abs/1307.7633 Original Publication: Wireless & Mobile Technologies, Vol. 1, Issue 1, September 2013. [DOI: 10.12691/wmt-1-1-2] Upcoming Standards in Wireless Local Area Networks Sourangsu Banerji Department of Electronics & Communication Engineering, RCC-Institute of Information Technology, India Email: [email protected] ABSTRACT: In this paper, we discuss some widely deployed WLAN technology as of today. of the upcoming standards of IEEE 802.11 i.e. Another renowned counterpart is the HiperLAN Wireless Local Area Networks. The WLANs standard by ETSI. These two technologies are united underneath the Wireless Fidelity (Wi-fi) nowadays provide unlimited broadband usage alliance. In literature though, IEEE802.11 and Wi- to users that have been previously offered fi is used interchangeably and we will also simply to wireline users within a limited range. continue with the same convention in this The newest and the emerging standards fix particular paper. A regular WLAN network is technology issues or add functionality to the associated with an Access Point (AP) in the centre existing IEEE 802.11 standards and will be and numerous stations (STAs) are connected to this central Access Point (AP).There are just two expected to overcome many of the current modes in which communication normally takes standing problems with IEEE 802.11. place. Keywords: Wireless Communications, IEEE Within the centralized mode of communication, 802.11, WLAN, Wi-fi. communication to/from a STA is actually carried across by the APs. There's also a decentralized 1. Introduction mode in which communication between two STAs The wireless broadband technologies were can happen directly without the requirement developed with the objective of providing services associated with an AP in an ad hoc fashion. -
Notes-Cn-Unit-3
UNIT –0 3 ALOHA Unit-03/Lecture-01/ Lecture-02 Static Channel Allocation in LANs and MANs[RGPV/Jun 2010, Jun2014] Frequency Division Multiplexing - Frequency of one channel divided (usually evenly) among n users. Each user appears to have full channel of full frequency/n. Wastes bandwidth when user has nothing to send or receive, which is often the case in data communications. Other users cannot take advantage of unused bandwidth. Time Division Multiplexing - Time of one channel divided (usually evenly) among n users. Each user appears to have full channel for time/n. same problems as FDM. Analysis of Static Channel Allocation - Static allocation is intuitively a bad idea when considering that for an n divisions of a channel, any one user is limited to only 1/n channel bandwidth whether other users where accessing the channel or not. By limiting a user to only a fraction of the available channel, the delay to the user is increased over that if the entire channel were available. Intuitively, static allocation results in restricting one user to one channel even when other channels are available. Consider the following two diagrams, each with one user wanting to transmit 400 bits over a 1 bit per second channel. The left diagram would have a delay 4 times greater than the diagram on the right, delaying 400 seconds using 1 channel versus 100 second delay using the 4 channels. Static Allocation Dynamic Allocation One user with entire channel 1 channel per user up to 4 channels per user Generally we want delay to be small. -
On IEEE 802.11: Wireless LAN Technology
Preprint: http://arxiv.org/abs/1307.2661 Original Publication: International Journal of Mobile Network Communications & Telematics (IJMNCT) Vol. 3, Issue. 4, 2013. [DOI: 10.5121/ijmnct.2013.3405] On IEEE 802.11: Wireless LAN Technology Sourangsu Banerji1, Rahul Singha Chowdhury2 1, 2 Department of Electronics & Communication Engineering, RCC-Institute of Information Technology, India ABSTRACT: Network technologies are WMAN: Wireless Metropolitan Area Network; traditionally based on wireline solutions. But generally cover wider areas as large as entire cities. the introduction of the IEEE 802.11 standards WWAN: Wireless Wide Area Network with a cell have made a huge impact on the market such radius about 50 km, cover areas larger than a city. that laptops, PCs, printers, cellphones, and However out of all of these standards, WLAN VoIP phones, MP3 players in our homes, in and recent developments in WLAN technology offices and even in public areas have would be our main area of study in this paper. The incorporated the wireless LAN technology. IEEE 802.11 is the most widely deployed WLAN Wireless broadband technologies nowadays technology as of today. Another well known is the provide unlimited broadband access to users HiperLAN standard by ETSI. Both these which were previously offered only to wireline technologies are united under the Wireless Fidelity users. In this paper, we review and summarize (Wi-fi) alliance. In literature though, IEEE802.11 one of the emerging wireless broadband and Wi-fi is used interchangeably and we will also technology i.e. IEEE 802.11,which is a set of follow the same convention in this paper. -
Token Bus Occur in Real‐Time with Minimum Delay, and at the Same Speed As the Objects Moving Along the Assembly Line
Introduction • LANs have a direct application in factory automation and process control, where nodes are computers controlling the manufacturing Chap ter 12 process. • In this type of application, processing must Token Bus occur in real‐time with minimum delay, and at the same speed as the objects moving along the assembly line. 2 Introduction Introduction • Ethernet is not suitable for this purpose, • Token Bus is the solution to this type of because the number of collisions is not problem. predictable and delay in sending data from the • It combines the physical configuration of control center to the computers along the Ethernet (a bus topology) and the collision‐ assembly line is not a fixed value. free (predictable delay) feature of Token Ring. • Token Ring is not suitable either, because an • It is a physical bus operating as a logical ring assembly line resembles a bus topology and using tokens. not a ring topology. 3 4 Figure 12-1 Physical Versus Logical Topology A Token Bus Network • The logical ring is formed based on the physical address of the stations in descending order. • Each station considers the station with the immediate lower address as the next station and the station with the immediate higher address as the previous station. • The station with the lowest address considers the station with the highest address the next station, and the station with the highest address considers the station with the lowest address the previous station. 5 6 Token Passing Token Passing • To control access to the shared medium, a • After sending all its frames or after the time small token frame circulates from station to period expires (whichever comes first), the station in the logical ring.