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The Book End

April 1, 2001
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* Bluetooth Demystified

Nathan J. Muller

McGraw-Hill

396 pages; $49.95 (paperback)
ISBN: 0-07-136323-8

Bluetooth wireless technology is intended to replace cable connections between electronic devices for the purpose of data transfer. Within a few years, approximately 80 percent of all mobile phones are expected to carry a Bluetooth chip that will provide a wireless connection to similarly equipped notebook computers, printers and, potentially, any other digital device. Over 1800 companies worldwide have signed on as members of the Bluetooth Special Interest Group. This book explains the advantages that Bluetooth technology provides to users and discusses the key operational details of the technology.

Chapter 1 explains the need for Bluetooth technology and describes some of its potential uses and advantages over existing wireless interfaces, such as infrared. Chapter 2 provides some basic concepts, explaining the technique of spread spectrum transmission, circuit and packet switching, and client-server architecture. Chapter 3 covers the Bluetooth protocol architecture that is intended to facilitate rapid development of applications, and provides the first look into the Bluetooth specification. Chapter 4 describes link management and provides insight into how various Bluetooth devices are intended to interface with each other and the mechanisms used to assume control. Chapter 5 discusses the logical link control and adaptation protocol, which provides for higher level protocol multiplexing and packet segmentation and reassembly. Chapters 6 and 7 provide general Bluetooth profiles of usage models, defining the specific messages and procedures used to implement a feature. Chapter 8 describes Bluetooth security measures to discourage eavesdropping and attempts to falsify the origin of messages, called "spoofing." The final chapter deals with Bluetooth technology within the scheme of 3G wireless cellular system operation.

This book provides a comprehensive overview and description of Bluetooth technology and its intended impact on digital device connectivity. It is a must for those individuals seeking a thorough understanding of the application and operation of this new technology.

To order this book, contact: McGraw-Hill Publishing Co., New York, NY (800) 262-4729.

* Digital Modulation Techniques

Fugin Xiong

Artech House Inc.

653 pages; $119, £82
ISBN: 0-89006-970-0

Most of today's digital communications systems use digital modulation techniques. This book presents principles and application information of all currently utilized digital modulation techniques, as well as new techniques under development. The history, operating principles, symbol and bit error performance (power efficiency), and spectral characteristics (bandwidth efficiency) are presented for each modulation scheme, as well as block diagrams of its modulator, demodulator, carrier recovery and clock recovery, and comparison with other schemes and applications.

Chapter 1 begins with an introduction to digital communications systems and modulation methods. Chapter 2 describes baseband signal modulation that does not involve a carrier. Chapters 3 and 4 cover classical frequency shift keying and phase shift keying techniques, including coherent and noncoherent. These types are used in most digital cellular and satellite communications systems. Chapters 5, 6 and 7 describe advanced phase modulation techniques, including minimum shift keying, continuous phase modulation and multi-h phase modulation.

Chapter 8 discusses quadrature amplitude modulation, which is widely used in telephone modems. Chapter 9 describes nonconstant-envelope bandwidth-efficient modulation schemes, which improve power spectral density with little loss in error probability. These types are primarily used for satellite communications.

The final chapter briefly introduces channel fading characteristics and multipath propagation. The appendices provide information on signal spectra and classical signal detection and estimation theory.

The book is well supported with easy to understand diagrams and a minimum of mathematical derivations. It is well written and easily understood, and will make a good addition to the reader's reference library.

To order this book, contact: Artech House Inc., 685 Canton St., Norwood, MA 02062 (781) 769-9750, ext. 4002; or 46 Gillingham St., London SW1V 1HH, UK +44 (0)20 7596-8750.

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