Until now, most wireless devices have been used for voice transmission, but the new third generation of wireless devices promise greatly enhanced delivery of both voice and data communications. These devices are currently under development and are being built using the two major CDMA (code division multiple access) systems, cdma2000 and wideband CDMA. These telecommunication systems use signal codes to receive voice and data information. This authoritative new book reviews both of these systems and deals with the challenges engineers face in bringing these next generation devices to market.The authors work at Nokia, one of the world's leading companies involved with the design, development, and manufacture of wireless telephones and devices. They are closely involved within Nokia and the industry in working with CDMA standardization to bring this technology to the consumer. This is the first book to cover both of the leading CDMA standards (cdma2000 and wideband CDMA), and it provides an authoritative, current review of the newest third generation technologies.This book is ideal for the engineers developing wireless devices (at Nokia, Ericsson, Qualcomm, Motorola, etc.), as well as for those in the service sectors (i.e. AT&T, Verizon, Voicestream, Quest, etc.).The use of mobile communication devices has grown phenomenally throughout the world during the last few years. With strong consumer demand to increase data delivery (large emails, browsing the Internet on wireless devices, transferring video images, etc.), engineers are faced with the challenge of enhancing CDMA to provide larger data capabilities while improving voice signals for clearer reception.In November2001 the U.S. Federal Communications Commission released a much broader band of frequencies to wireless service providers, which will speed up the development of these systems. Cover 1 Frontmatter 4 Half Title Page 4 Title Page 6 Copyright 7 Table of Contents 8 Preface 10 Chapter 1: Introduction to Cellular Systems 12 1. Introduction 12 2. Multiple-Access Cellular Communications 16 3. Conclusions 22 Chapter 2: Direct-Sequence Spread Spectrum Systems 24 1. Introduction 24 2. Processing Gain 26 3. Pseudorandom Sequences 27 4. Orthogonal Codes 32 5. Spreading 34 6. Modulation Constellations 39 7. Pulse Shaping 44 8. Channel Coding 46 9. Conclusions 50 Chapter 3: The Mobile Channel and Diversity Reception in CDMA Systems 52 1. Introduction 52 2. Fading Channel Analysis 57 3. Diversity Techniques for Fading Multipath Channels 60 4. Power Control 62 5. Conclusions 66 Chapter 4: An Overview of IS-95 and cdma2000 68 1. Introduction 68 2. Overview of IS-95 Air Interface 71 3. cdma2000 88 4. cdma2000 Physical Layer 93 5. Conclusions 115 Chapter 5: 1X-EV: Evolution of cdma2000 118 1. Introduction 118 2. 1X-EV-DO 119 3. 1X-EV-DV 132 4. Conclusions 151 Chapter 6: WCDMA Overview 154 1. Introduction 154 2. WCDMA Channels 158 3. WCDMA Physical Layer 171 4. High-Speed Downlink Packet Access (HSDPA) 190 5. Conclusions 190 Chapter 7: IS-95, cdma2000, 1X-EV, and WCDMA Performance 192 1. Introduction 192 2. IS-95 and CDMA2000 Voice Capacity 196 3. CDMA2000 Data Capacity 206 4. 1X-EV Performance 209 5. WCDMA Performance 212 6. Conclusions 218 Chapter 8: Handover in IS-95, cdma2000, 1X-EV, and WCDMA 220 1. Introduction 220 2. IS-95 Handover 221 3. CDMA2000 Handover 226 4. 1X-EV 226 5. WCDMA Handover 230 6. Conclusions 232 Backmatter 234 Appendix: CDMA Transceivers 234 Author Biographies 270 Index 272 Back cover 294 Referex Cover......Page 1 Half Title Page......Page 4 Title Page......Page 6 Copyright......Page 7 Table of Contents......Page 8 Preface......Page 10 1. Introduction......Page 12 2. Multiple-Access Cellular Communications......Page 16 3. Conclusions......Page 22 1. Introduction......Page 24 2. Processing Gain......Page 26 3. Pseudorandom Sequences......Page 27 4. Orthogonal Codes......Page 32 5. Spreading......Page 34 6. Modulation Constellations......Page 39 7. Pulse Shaping......Page 44 8. Channel Coding......Page 46 9. Conclusions......Page 50 1. Introduction......Page 52 2. Fading Channel Analysis......Page 57 3. Diversity Techniques for Fading Multipath Channels......Page 60 4. Power Control......Page 62 5. Conclusions......Page 66 1. Introduction......Page 68 2. Overview of IS-95 Air Interface......Page 71 3. cdma2000......Page 88 4. cdma2000 Physical Layer......Page 93 5. Conclusions......Page 115 1. Introduction......Page 118 2. 1X-EV-DO......Page 119 3. 1X-EV-DV......Page 132 4. Conclusions......Page 151 1. Introduction......Page 154 2. WCDMA Channels......Page 158 3. WCDMA Physical Layer......Page 171 5. Conclusions......Page 190 1. Introduction......Page 192 2. IS-95 and CDMA2000 Voice Capacity......Page 196 3. CDMA2000 Data Capacity......Page 206 4. 1X-EV Performance......Page 209 5. WCDMA Performance......Page 212 6. Conclusions......Page 218 1. Introduction......Page 220 2. IS-95 Handover......Page 221 4. 1X-EV......Page 226 5. WCDMA Handover......Page 230 6. Conclusions......Page 232 Appendix: CDMA Transceivers......Page 234 Author Biographies......Page 270 Index......Page 272 Back cover......Page 294 The use of mobile communication devices has grown phenomenally throughout the world during the last few years. With strong consumer demand to increase data delivery (large emails, browsing the Internet on wireless devices, transferring video images, etc.), engineers are faced with the challenge of enhancing CDMA to provide larger data capabilities while improving voice signals for clearer reception.
In November 2001 the U.S. Federal Communications Commission released a much broader band of frequencies to wireless service providers, which will speed up the development of these systems.
Simulation results demonstrate the performance benefits of the proposed systems versus their third-generation predecessors
Up-to-date overview of the standardised air interface The use of mobile communication devices has grown phenomenally throughout the world during the last few years. With strong consumer demand to increase data delivery (large emails, browsing the Internet on wireless devices, transferring video images, etc.), engineers are faced with the challenge of enhancing CDMA to provide larger data capabilities while improving voice signals for clearer reception. In November 2001 the U.S. Federal Communications Commission released a much broader band of frequencies to wireless service providers, which will speed up the development of these systems. Simulation results demonstrate the performance benefits of the proposed systems versus their third-generation predecessors Up-to-date overview of the standardised air interface This authoritative new book reviews two systems and deals with the challenges engineers face in bringing these next-generation devices to market. This is the first book to cover both of the leading CDMA standards, and it provides an authoritative, current review of the newest third-generation technologies. Cellular telephony systems are radio systems that involve distributed transmission.