Taking a close look at an integral part of next generation wireless communications, this book presents SS/CDMA system architecture (Satellite Switched Code Division Multiple Access) and its various communications services. TDMA-based satellite communications as well as related satellite systems and services are also examined in detail.
Author(s): Diakoumis Gerakoulis, Evaggelos Geraniotis
Edition: 1
Publisher: Wiley
Year: 2001
Language: English
Pages: 280
Cover......Page 1
Preface......Page 8
Contents......Page 4
1.1 Introduction......Page 10
1.2 User Encoding by Real Sequences......Page 12
1.2.1 Spread-Spectrum......Page 13
1.2.2 Spread-Time......Page 18
1.3 User Encoding by Complex Sequences......Page 22
1.3.1 Spread-Spectrum......Page 23
1.3.2 Spread-Phase......Page 28
1.4 Composite Multiple Access Systems......Page 30
1.4.1 Spread-Spectrum and Time Multiple Access......Page 31
1.4.2 Applications of Composite Access Methods......Page 32
1.5 Conclusion......Page 36
2.2.1 De.nitions......Page 38
2.2.2 Pseudo-random Noise (PN)Se quences......Page 39
2.2.3 Quasi-Orthogonal (QO)Se quences......Page 41
2.2.4 Orthogonal Code Sequences......Page 44
2.2.5 Extended Orthogonal Sequences......Page 47
2.2.6 Complex Orthogonal Matrices......Page 50
2.3.1 The System Model......Page 52
2.3.2 Jitter Impact on QR-Orthogonal Sequences......Page 53
2.3.3 Jitter Impact on Gold Code Sequences......Page 55
2.3.4 Jitter Impact on Extended Orthogonal Sequences......Page 56
2.4 Interference Impact of Band-limited Pulse-Shapes......Page 59
2.5 Conclusion......Page 63
3.1 Overview......Page 66
3.2 Satellite Switched CDMA (SS/CDMA)......Page 68
3.2.1 System Description......Page 69
3.2.2 Satellite Switching......Page 72
3.2.3 Transmitter and Receiver Units......Page 75
3.2.4 Network Architecture......Page 84
3.2.5 Network Control System......Page 86
3.3 Conclusion......Page 89
4.1 Overview......Page 91
4.2.1 Satellite Switched CDMA (SS/CDMA)System......Page 92
4.2.2 SW/CDMA Applications in Terrestrial Networks......Page 96
4.3.1 Evaluation of the Switch Interference......Page 101
4.3.2 Signal Amplitude Distribution......Page 102
4.3.3 Switch Interference Coupling......Page 104
4.3.4 Switch Control and Optimization......Page 108
4.4 Switch Capacity and Complexity Assessment......Page 109
4.5 Conclusions......Page 110
Appendix 4A: A Switch Design Example......Page 111
5.2 The Demand Assignment System......Page 114
5.2.1 System Control Algorithm......Page 118
5.3.1 Distribution of Circuit Calls......Page 126
5.4 Performance Results......Page 129
5.5 Conclusions......Page 133
6.2 System Description and Modeling......Page 136
6.2.1 Signal and Channel Models......Page 141
6.3.1 Cross-correlation of Synchronous CDMA Codes......Page 144
6.3.2 Normalized Power of Other-User Interference......Page 146
6.3.3 E.ects of Power Control on Interference......Page 149
6.4 On-board Processing and Uplink/Downlink Coupling......Page 157
6.4.1 Baseband Despreading/Respreading: Interference Model......Page 158
6.4.2 Power of End-to-End Other-User Interference......Page 159
6.5.1 BER Evaluation for M-ary PSK SE-CDMA......Page 161
6.5.2 BER Evaluation for Concatenated Turbo/RS SE-CDMA......Page 163
6.6 Performance Results......Page 164
6.7 Conclusions......Page 166
Appendix 6A: Antenna Patterns and Beam Geometry......Page 168
7.1 Overview......Page 170
7.2 System Description......Page 172
7.2.1 Synchronization Procedures......Page 173
7.2.2 System Design......Page 175
7.3 Access Channel Performance......Page 177
7.3.1 Packet Acquisition Performance Analysis......Page 180
7.3.2 Packet Acquisition Performance Results......Page 182
7.4 Performance of the Tracking Control Loop......Page 183
7.4.1 Analysis of the Code Tracking......Page 187
7.5 Conclusion......Page 191
8.1 Overview......Page 193
8.2.1 System Model......Page 194
8.2.2 Design of Modulator and Demodulator......Page 195
8.3.1 Optimum Wiener Filtering......Page 198
8.4.1 System Model......Page 201
8.4.2 Design of Modulator and Demodulator......Page 203
8.5 The Coded SAD and PAD Systems......Page 204
8.5.1 Coded SAD......Page 205
8.5.2 Coded PAD......Page 206
8.6 Performance Results......Page 207
8.7 Conclusions......Page 214
9.1 Overview......Page 216
9.2.1 Transmitter......Page 218
9.2.2 Nonlinear Ampli.ers......Page 220
9.3 Performance Analysis......Page 222
9.4 Numerical Results......Page 226
9.5 Conclusions......Page 229
Appendix 9A: Performance Evaluation......Page 230
10.1 Overview......Page 243
10.2 Adaptive Power Control......Page 244
10.2.1 Power Control System Design......Page 245
10.2.2 Uplink Power Control Performance......Page 248
10.3 Multi-User Detection......Page 257
10.3.1 Methods of Multiuser Detection......Page 258
10.3.2 An Interative MMSE Multi-User Detector......Page 261
10.4 Conclusions......Page 270
Index......Page 273
