05511nam 22006494a 450 991014370450332120170815121722.01-280-27634-797866102763490-470-09153-30-470-09152-5(CKB)1000000000356557(EBL)239052(OCoLC)77516169(SSID)ssj0000211102(PQKBManifestationID)11189896(PQKBTitleCode)TC0000211102(PQKBWorkID)10292860(PQKB)11211059(MiAaPQ)EBC239052(EXLCZ)99100000000035655720050208d2005 uy 0engur|n|---|||||txtccrNext generation mobile systems[electronic resource] 3G and beyond /edited by Minoru EtohChichester, England ;Hoboken, NJ John Wileyc20051 online resource (406 p.)Description based upon print version of record.0-470-09151-7 Includes bibliographical references and index.Next Generation Mobile Systems 3G and Beyond; Contents; Foreword; Preface; Acknowledgments; List of Contributors; I A Vision for the Next Generation; 1 Evolution of Mobile Networks and Services; 1.1 The Evolution ofMobile Networks; 1.2 Trends inMobile Services; 1.3 Why Next-generation (XG)Mobile Systems?; 1.4 Next-generation Imperatives; 1.4.1 Radio Access Networks (RAN); 1.4.2 IP Backbone; 1.4.3 Ubiquitous Service Platform; 2 The All-IP Next-generation Network Architecture; 2.1 Introduction; 2.2 3G Architectures; 2.2.1 UMTS; 2.2.2 CDMA2000; 2.2.3 MWIF; 2.2.4 Limitations of 3G Architectures2.3 Approach to a Next-generation Architecture2.3.1 Rationale and Key Features; 2.3.2 Architecture Overview; 2.4 Conclusions; II Overview of Mobile Network Technologies; 3 Radio Access Technologies in Cellular Networks; 3.1 Introduction; 3.1.1 Current Radio Access Technologies; 3.1.2 Evolving Radio Access Technologies; 3.2 Background of Radio Access Technologies; 3.2.1 Propagation Characteristics in Mobile Environments; 3.2.2 Basic Multiple Access Schemes in Cellular Systems; 3.2.3 Principles of DS-CDMA and IS-95; 3.3 Radio Access Technologies in Wideband CDMA; 3.3.1 W-CDMA3.3.2 Spreading Codes and Asynchronous Operation3.3.3 Orthogonal Multi-SF Downlink; 3.3.4 Turbo Codes; 3.3.5 Coherent Rake Combining; 3.3.6 Transmission Power Control; 3.4 High-speed Transmission Technologies in HSDPA; 3.4.1 Adaptive Modulation and Coding; 3.4.2 Hybrid ARQ; 3.4.3 Fast Cell Selection; 3.5 Radio Access Technologies for Next-generation Systems; 3.5.1 Technical Requirements; 3.5.2 Potential Solutions for Downlink Transmission; 3.5.3 Potential Solutions for Uplink Transmission; 3.6 Broadband Radio Access Schemes for XG Systems; 3.6.1 VSF-OFCDM for Downlink Transmission3.6.2 VSCRF-CDMA for Uplink Transmissions3.7 Conclusions; 4 Wireless LAN Evolution; 4.1 Introduction; 4.1.1 Overview of CurrentWLAN Standards; 4.2 Basic Technologies in IEEE 802.11 WLAN; 4.2.1 MAC Technologies; 4.2.2 PHY Technologies; 4.3 Evolution ofWLAN; 4.3.1 Higher Data Rates and Low Power Consumption; 4.3.2 Extended Coverage Areas and Scalability; 4.3.3 Coexistence of Access Devices; 4.3.4 Seamless Mobility Support; 4.3.5 Location Estimation byWLAN; 4.3.6 Differentiated Services Support; 4.3.7 Quality of Service Assurance for Real-time Applications; 4.3.8 Enhanced Security4.4 Mobility Support4.4.1 Fast Channel Scanning; 4.4.2 Fast Authentication; 4.5 Quality of Service; 4.5.1 EDCA and HCCA; 4.6 Security; 5 IP Mobility; 5.1 Introduction; 5.2 The Internet Architecture; 5.2.1 The End-to-end Principle; 5.2.2 Internet Architectural Elements; 5.2.3 IP Addresses and Routing Topologies; 5.2.4 Fully Quali.ed Domain Names and DNS; 5.3 Network Layer Mobility in the Internet; 5.3.1 BasicMobile IP; 5.3.2 Routing Inef.ciencies; 5.3.3 Mobile IP Handover; 5.3.4 AAA and Security; 5.4 Achieving Seamless Mobility; 5.4.1 Header Compression; 5.4.2 Context Transfer5.4.3 Intertechnology HandoverWhat will the future of wireless communications look like? What drives mobile communications systems beyond 3G? In Next Generation Mobile Systems the authors answer these questions and others surrounding the new technologies. The book examines the current research issues driving the wireless world and provides an inclusive overview of how established technologies will evolve to suit next generation mobile systems. While the term '4G' already dominates research in industry and academia, there are still numerous hurdles to take before this ambitious concept can become Wireless communication systemsTechnological innovationsCell phone systemsTechnological innovationsMobile communication systemsTechnological innovationsElectronic books.Wireless communication systemsTechnological innovations.Cell phone systemsTechnological innovations.Mobile communication systemsTechnological innovations.621.3821621.38456Etoh Minoru977635MiAaPQMiAaPQMiAaPQBOOK9910143704503321Next generation mobile systems2227322UNINA