The wireless community is on the verge of the standardization offourth generation (4G) systems. Research has generated a number ofsolutions for significant improvement of system performance. Thedevelopment of enabling technologies such as adaptive coding andmodulation, iterative (turbo) decoding algorithms and space-timecoding, means that industry can now implement these solutions.Advanced Wireless Communications: 4G Technologies focuses onthe system elements that provide adaptability and reconfigurabilityand discusses how these features can improve 4G system performance. There are several different systems comprising 4G, includingadaptive WCDMA (Wideband Code Division Multiple Access), ATDMA(Adaptive Time Division Multiple Access), Multicarrier (OFDMA) andUltra Wide Band (UWB) receiver elements. This book provides acomparative study of these technologies and focuses on their futureco-existence. Topics covered include: * Space Time Coding, including discussions on diversity gain, theencoding and transmission sequence, the combining s cheme and MLdecision rule for two-branch transmit diversity scheme with one andM receivers. * Ultra Wide Band Radio, UWB multiple access in Gaussianchannels, the UWB channel, UWB system with M-ary modulation, M-aryPPM UWB multiple access, coded UWB schemes, multi-user detection inUWB radio, UWB with space time processing and beam forming for UWBradio. * Antenna array signal processing with focus on Space-Timereceivers for CDMA communications, MUSIC and ESPRIT DOA estimation,joint array combining and MLSE receivers, joint combiner andchannel response estimation and complexity reduction in thewide-band beam forming * Channel modeling and measurement, adaptive MAC, adaptiverouting and TCP layer are also addressed. This book will supply the reader with a comprehensiveunderstanding of the relationship between the systems performance,its complexity/reliability and cost-effectiveness. It gives aninsight into the impact of existing and new technologies on thereceiver structure and provides an understanding of currentapproaches and evolving directions for personal and indoorcommunication.
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