Wireless Networking Complete

Wireless Networking Complete

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by Pei Zheng, Larry L. Peterson, Bruce S. Davie, Adrian Farrel

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Given the explosion of new wireless communications techniques and the host of wireless network technologies and applications currently available or on the drawing board, it is safe to say that we are in the midst of a wireless networking revolution. Industry adoption of next-generation specifications will provide a substantial boost to the market for wireless


Given the explosion of new wireless communications techniques and the host of wireless network technologies and applications currently available or on the drawing board, it is safe to say that we are in the midst of a wireless networking revolution. Industry adoption of next-generation specifications will provide a substantial boost to the market for wireless multimedia networking, prompting growth in excess of 50 million wireless network devices by 2010, according to a market study by Parks Associates.

A compilation of critical content from key MK titles published in recent years on wireless networking and communications. Individual chapters are organized as one complete reference that allows it to be used as a 360-degree view from our bestselling authors for those interested in new and developing aspects of wireless network technology.

  • Chapters contributed by recognized experts in the field cover theory and practice of wireless network technology, allowing the reader to develop a new level of knowledge and technical expertise
  • Up-to-date coverage of wireless networking issues facilitates learning and lets the reader remain current and fully informed from multiple viewpoints
  • Presents methods of analysis and problem-solving techniques, enhancing the reader’s grasp of the material and ability to implement practical solutions

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Wireless Networking Complete

By Pei Zheng Feng Zhao David Tipper Jinmei Tatuya Keiichi Shima Yi Qian Larry L. Peterson Lionel M. Ni D. Manjunath Qing Li Joy Kuri Anurag Kumar Prashant Krishnamurthy Leonidas Guibas Vijay K. Garg Adrian Farrel Bruce S. Davie


Copyright © 2010 Elsevier Inc.
All right reserved.

ISBN: 978-0-12-378570-1

Chapter One

Supporting Wireless Technologies

Pei Zheng Lionel M. Ni

This chapter provides extensive coverage of existing mobile wireless technologies. Much of the emphasis is on the highly anticipated 3G cellular networks and widely deployed wireless local area networks (LANs), as the next-generation smart phones are likely to offer at least these two types of connectivity. Other wireless technologies that either have already been commercialized or are undergoing active research and standardization are introduced as well. Because standardization plays a crucial role in developing a new technology and a market, throughout the discussion standards organizations and industry forums or consortiums of some technologies are introduced. In addition, the last section of this chapter presents a list of standards in the wireless arena.

1.1 The Frequency Spectrum

The fundamental principle of wireless communication is electromagnetic wave transmission between a transmitter and a receiver. Signals are characterized by their frequencies in use. Multiple signals or noises of the same frequency will cause interference at the receiver. To avoid interference, various wireless technologies use distinct frequency bands with well-controlled signal power which are portions of the so-called frequency spectrum. As a scarce public resource, the frequency spectrum is strictly regulated by governments of countries around the world. In the United States, the Federal Communications Commission (FCC) has the responsibility of regulating civil broadcast and electronic communications, including the use of the frequency spectrum, and the National Telecommunications and Information Administration (NITA) administers the frequency use of the federal government. In Europe, the frequency spectrum is managed on a national basis, and the European Union (EU) members coordinate via the European Conference of Post and Telecommunications Administrations (ECPT) and the Electronic Communications Committee (ECC). Worldwide unified regulation of wireless communication is understandably difficult to achieve for various technological, economic, and political reasons. To this end, the International Telecommunications Union (ITU) has been formed as an international organization of the United Nation. The ITU allows governments and private sectors to coordinate development of telecommunication systems, services, and standards. In almost all countries, portions of the frequency spectrum have been designated as "unlicensed," meaning that a government license is not required for wireless systems operating at these bands. In effect, wireless system manufacturers and service providers are required to obtain an exclusive license for a frequency band from regulatory bodies or resort to the use of the unlicensed spectrum. In either case, the emitted power of the wireless systems must comply with the power constraints associated with the regulations in question. In addition, frequency allocations of a country may change over time. (For the latest information regarding frequency allocation in the United States, see http://www.ntia.doc.gov/osmhome/allochrt.html.)

A radio signal is characterized by wavelength and frequency. In vacuum, the product of wavelength and frequency is the speed of light (about 3 108 m/sec); in general, a higher frequency means shorter wavelength. For example, visible light is in the frequency band of 4.3 1014 to 7.5 1014 Hz, with wavelengths ranging from 0.35 to 0.9 µm. Frequency modulation (FM) radio broadcasts operate within the frequency range of 30 to 300MHz at wavelengths between 10 and 1m.

The frequency spectrum can be divided into the following categories: very low frequency (VLF), low frequency (LF), medium frequency (MF), high frequency (HF), very high frequency (VHF), ultra-high frequency (UHF), super-high frequency (SHF), extremely high frequency (EHF), infrared, visible light, ultraviolet, X-ray, gamma-ray, and cosmic ray, each of which represents a frequency band. Figure 1.1 shows the frequency spectrum up to the visible light band. Notice that in the context of electronic communication, there are two categories of transmission medium: guided medium (e.g., copper coaxial cable and twisted pair) and unguided medium (for wireless communication in the air). The guided medium carries signals or waves between a transmitter and a receiver, whereas the unguided medium typically carries wireless signals between an antenna and a receiver (which may also be an antenna). Nevertheless, each medium operates at a specific frequency band of various bandwidth determined by its physical characteristics. For example, coaxial cable uses many portions of frequencies between 1KHz and 1GHz for different purposes: television channels 2, 3, and 4 operate at frequencies from 54 to 72MHz; channels 5 and 6 from 76 to 88MHz; and channels 7 to 13 from 174 to 216MHz. The optical fiber uses visible or infrared light as the carrier and operates at frequencies between 100 and 1000THz.

Wireless communication operates at frequencies in the so-called radio spectrum, which is further divided into VLF, LF, MF, HF, VHF, UHF, SHF, and EHF. In addition, infrared data association (IrDA) is also used for short-range wireless communication. The following text discusses frequency bands at which existing mobile wireless technologies operate; notice that very often the frequency regulations enforce emitted power restrictions to avoid interference among wireless devices operating at the same frequency band.

1.1.1 Public Media Broadcasting

• Amplitude modulation (AM) radio: AM radio stations operate at a frequency band between 520 and 1605.5KHz.

• FM radio: It uses the frequency band between 87.5 and 108MHz.

• Shortwave (SW) radio: SW radio uses frequencies between 5.9 and 26.1MHz within the HF band. The transmission of shortwave radio over a long distance is made possible by ionosphere reflection. HAM amateur radio, a popular activity enjoyed by over three million fans worldwide, relies on the HF band to communicate across the world.

• Conventional analog television: A quite small slice of VHF (30–300MHz) and UHF (300–3000MHz) has been allocated for analog television broadcasting. In the United States, each channel occupies a 6-MHz band. The first VHF channel, channel 2, operates at 54–60MHz, whereas the last UHF channel, channel 69, operates at 800–806MHz. • Cable television: The frequency bands of channels 2–13 are exactly the same for both conventional television and cable television. Beyond those channels, cable television requires frequencies from 120 to 552MHz for channels 13–78. • Digital cable television: Channels 79 and above are reserved for digital cable broadcasting at frequencies between 552 and 750MHz.

• Digital audio broadcasting (DAB): DAB is a standard developed by the EU for CD-quality audio transmission at frequencies from 174 to 240MHz and from 1452 to 1492MHz. In the United States, a technique called in-band on-channel (IBOC) is used to transmit digital audio and analog radio signals simultaneously with the same frequency band. The resulting services are generally marketed as high-definition radio.

• Direct broadcast satellite (DBS): The upper portion of the microwave Ku band (10.9–12.75GHz) is used for direct satellite-to-receiver video and audio broadcasting. See Section 1.13 for more details regarding satellite communication. • Satellite radio: Frequencies from 2320 to 2345MHz have been allotted for satellite radio services in the United States. See Section 1.13 for more details regarding satellite communication. 1.1.2 Cellular Communication

• Global system for mobile (GSM): The two frequency bands used by GSM are 890–960MHz and 1710–1880MHz. They are sometimes referred to as the 900-MHz band and the 1800-MHz band. • Code-division multiple access (CDMA): The IS-95 standard defines the use of the 800- and 1900-MHz bands for CDMA cellular systems.

• 3G wideband CDMA (WCDMA)/universal mobile telecommunications system (UMTS): Three frequency bands are allocated for 3G UMTS services: 1900–1980MHz, 2020–2025MHz, and 2110–2190MHz. • 3G CDMA 2000: This system reuses existing CDMA frequency bands.

1.1.3 Wireless Data Communication

• Wireless LANs: IEEE 802.11b operates at 902–928MHz and 2400–2483MHz, and the industrial, scientific, and medical (ISM) radio bands operate at 2.4GHz in the United States. The IEEE 802.11b operates at 2400–2483MHz in Europe, and at 2400–2497MHz in Japan. IEEE 802.11a and HiperLAN2 use 5150–5350MHz and 5725–5825MHz, and the unlicensed national information infrastructure (U-NII) band operates at 5.8GHz in the United States. They operate at 5150–5350MHz and 5470–5725MHz in Europe, and at 5150–5250MHz in Japan. Section 1.10 discusses wireless LANs in more detail. • Bluetooth: A total of 79 1-MHz channels are allocated from the unlicensed 2.402– 2.480GHz in the United States and Europe for Bluetooth signal transmission. Other countries may have fewer channels but all fall into the 2.4-GHz band. Section 1.11 talks more about the Bluetooth technology. • WiMax: A wide range from 2 to 11GHz that includes both licensed and unlicensed bands will be used for 802.116a, and from 11 to 66GHz can possibly be used by 802.116c. Section 1.14 introduces WiMax as part of the wireless MANs section. • Ultra-wideband (UWB): In the United States, the FCC mandates that UWB can operate from 1.1 to 10.6GHz. UWB is further discussed in Section 1.12.

• Radio-frequency identification (RFID): RFID tags operate at the frequency bands of LF (120–140KHz), HF (13.56MHz), UHF (868–956MHz), and microwave (2.4GHz). Section 1.13 explains RFID technology and its applications. • IrDA: IrDA uses frequencies around 100GHz for short-range data communication.

• Wireless sensors: Sensor motes support tunable frequencies in the range of 300 to 1000MHz and the 2.4-GHz ISM band. In particular, ZigBee, the remote sensor control technology, operates at the 868-MHz band in Europe, 915-MHz band in the United States and Asia, and 2.4-GHz band worldwide. • Digital cordless phone: The Digital Enhanced Cordless Telecommunications (DECT) standard in Europe defines the use of the frequency band 1880–1990MHz for digital cordless phone communication. In the United States, cordless phones use three frequency bands: 900MHz, 2.4GHz, and 5.8GHz, each of which is also intensively used by other short-range wireless communication technologies.

• Global positioning system (GPS): GPS satellites use the frequency bands 1575.42MHz (referred to as L1) and 1227.60MHz (L2) to transmit signals. • Meteorological satellite services: The UHF band from 1530 to 1650MHz (the L band) is commonly used by meteorological satellites, as well as some global environmental monitoring satellites. Part of the UHF and SHF bands are used for military satellite communication. • Radio-frequency remote control, such as remote keyless entry systems and garage door openers. These short-range wireless systems, commonly used for automobiles, operate at 27, 128, 418, 433, and 868MHz in the United States; 315 and 915MHz in Europe; and 426 and 868MHz in Japan.

1.2 Wireless Communication Primer

For our in-depth discussion of the many sophisticated mobile wireless network technologies, a basic understanding of wireless communications is necessary. Here, a primer of concepts within the domain of wireless communication is presented. Readers who are interested in further details are referred to Stallings' book on wireless communications and networks [1].

1.2.1 Signal Propagation

A radio signal can be described in three domains: time domain, frequency domain, and phase domain. In the time domain, the amplitude of the signal varies with time; in the frequency domain, the amplitude of the signal varies with frequency; and in the phase domain, the amplitude and phase of the signal are shown on polar coordinates. According to Fourier's theorem, any periodic signal is composed of a superposition of a series of pure sine waves and cosine waves whose frequencies are harmonics (multiples) of the fundamental frequency of the signal; therefore, any periodic signal, no matter how it was originally produced, can be reproduced using a sufficient number of pure waves.


Excerpted from Wireless Networking Complete by Pei Zheng Feng Zhao David Tipper Jinmei Tatuya Keiichi Shima Yi Qian Larry L. Peterson Lionel M. Ni D. Manjunath Qing Li Joy Kuri Anurag Kumar Prashant Krishnamurthy Leonidas Guibas Vijay K. Garg Adrian Farrel Bruce S. Davie Copyright © 2010 by Elsevier Inc.. Excerpted by permission of MORGAN KAUFMANN. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Meet the Author

Pei Zheng, is a Senior Architect with Carrier Devices, LLC, in Redmond, WA, USA.

Larry L. Peterson is the Robert E. Kahn Professor of Computer Science at Princeton University, as well as Vice President and Chief Scientist at Verivue, Inc. He serves as Director of the PlanetLab Consortium, which focuses on the design of scalable network services and next-generation network architectures. He is a Fellow of the ACM and the IEEE, recipient of the IEEE Kobayashi Computers and Communications Award, and a member of the National Academy of Engineering. Professor Peterson recently served as Editor-in-Chief of the ACM Transactions on Computer Systems, he has been on the Editorial Board for the IEEE/ACM Transactions on Networking and the IEEE Journal on Select Areas in Communication, and he has served as program chair for SOSP, NSDI, and HotNets. Peterson is a member of the National Academy of Engineering, a Fellow of the ACM and the IEEE, and the 2010 recipient of the IEEE Kobayahi Computer and Communication Award. He received his Ph.D. degree from Purdue University in 1985.
Bruce Davie is a visiting lecturer at MIT, and Chief Service Provider Architect at Nicira Networks. Formerly a Fellow at Cisco Systems, for many years he led the team of architects responsible for Multiprotocol Label Switching and IP Quality of Service. He is also an active participant in the Internet Engineering Task Force and he is curently SIGCOMM Chair. Prior to joining Cisco he was director of internetworking research and chief scientist at Bell Communications Research. Bruce holds a Ph.D. in Computer Science from Edinburgh University. He was named an ACM Fellow in 2009. His research interests include routing, network virtualization, transport protocols, and software-defined networks.
Adrian Farrel has nearly two decades of experience designing and developing portable communications software. As MPLS Architect and Development Manager at Data Connection Ltd., he led a team that produced a carrier-class MPLS implementation for customers in the router space. As Director of Protocol Development for Movaz Networks, Inc., he helped build a cutting-edge system that integrated many IP-based protocols to control and manage optical switches. Adrian is active within the IETF, where he is co-chair of the CCAMP working group responsible for GMPLS. He has co-authored and contributed to numerous Internet Drafts and RFCs on MPLS, GMPLS, and related technologies. He was a founding board member of the MPLS Forum, frequently speaks at conferences, and is the author of several white papers on GMPLS.

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Wireless Networking Complete 1 out of 5 based on 0 ratings. 2 reviews.
Anonymous More than 1 year ago
Costs way2much
Anonymous More than 1 year ago
This book is so dumb