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.

Diakoumis Gerakoulis is the author of CDMA: Access and Switching: For Terrestrial and Satellite Networks, published by Wiley.

Evaggelos Geraniotis is the author of CDMA: Access and Switching: For Terrestrial and Satellite Networks, published by Wiley.

Preface

ix

The Generalized CDMA

1

(28)

Introduction

1

(2)

User Encoding by Real Sequences

3

(10)

Spread-Spectrum

4

(5)

Spread-Time

9

(4)

User Encoding by Complex Sequences

13

(8)

Spread-Spectrum

14

(5)

Spread-Phase

19

(2)

Composite Multiple Access Systems

21

(6)

Spread-Spectrum and Time Multiple Access

21

(2)

Applications of Composite Access Methods

23

(4)

Conclusion

27

(2)

References

28

(1)

Spreading Sequences

29

(28)

Overview

29

(1)

Orthogonal and Pseudo-Orthogonal Sequences

29

(13)

Definitions

29

(1)

Pseudo-random Noise (PN) Sequences

30

(2)

Quasi-Orthogonal (QO) Sequences

32

(2)

Orthogonal Code Sequences

34

(4)

Extended Orthogonal Sequences

38

(3)

Complex Orthogonal Matrices

41

(1)

Timing Jitter Properties of Sequences

42

(8)

The System Model

43

(1)

Jitter Impact on QR-Orthogonal Sequences

44

(2)

Jitter Impact on Gold Code Sequences

46

(1)

Jitter Impact on Extended Orthogonal Sequences

47

(3)

Results of Time-Jitter Interference

50

(1)

Interference Impact of Band-limited Pulse-Shapes

50

(4)

Conclusion

54

(3)

References

55

(2)

Switched CDMA Networks

57

(26)

Overview

57

(2)

Satellite Switched CDMA (SS/CDMA)

59

(21)

System Description

60

(3)

Satellite Switching

63

(3)

Transmitter and Receiver Units

66

(8)

Network Architecture

74

(3)

Network Control System

77

(3)

Conclusion

80

(3)

References

80

(3)

Code Division Switching

83

(24)

Overview

83

(1)

Switched CDMA (SW/CDMA) Architectures

84

(9)

Satellite Switched CDMA (SS/CDMA) System

84

(4)

SW/CDMA Applications in Terrestrial Networks

88

(5)

Performance Evaluation of Code Division Switching

93

(8)

Evaluation of the Switch Interference

93

(1)

Signal Amplitude Distribution

94

(2)

Switch Interference Coupling

96

(4)

Switch Control and Optimization

100

(1)

Switch Capacity and Complexity Assessment

101

(1)

Conclusions

102

(5)

References

103

(1)

A Switch Design Example

103

(4)

The Satellite Switched CDMA Throughput

107

(22)

Overview

107

(1)

The Demand Assignment System

107

(11)

System Control Algorithm

111

(7)

System Throughput Analysis

118

(4)

Distribution of Circuit Calls

119

(2)

Distribution of Data Packets

121

(1)

Performance Results

122

(4)

Conclusions

126

(3)

References

127

(2)

The Spectrally Efficient CDMA Performance

129

(34)

Overview

129

(1)

System Description and Modeling

129

(8)

Signal and Channel Models

133

(4)

Interference Analysis

137

(13)

Cross-correlation of Synchronous CDMA Codes

137

(2)

Normalized Power of Other-User Interference

139

(3)

Effects of Power Control on Interference

142

(8)

On-board Processing and Uplink/Downlink Coupling

150

(4)

Baseband Despreading/Respreading: Interference Model

151

(1)

Power of End-to-End Other-User Interference

152

(1)

Total End-to-End Other-User Interference Power

153

(1)

Bit Error Rate (BER) Evaluation

154

(2)

BER Evaluation for M-ary PSK SE-CDMA

154

(2)

BER Evaluation for Concatenated Turbo/RS SE-CDMA

156

(1)

Performance Results

156

(2)

Conclusions

158

(5)

References

160

(1)

Antenna Patterns and Beam Geometry

161

(2)

Network Access and Synchronization

163

(24)

Overview

163

(1)

System Description

164

(6)

Synchronization Procedures

165

(3)

System Design

168

(2)

Access Channel Performance

170

(6)

Packet Acquisition Performance Analysis

172

(3)

Packet Acquisition Performance Results

175

(1)

Performance of the Tracking Control Loop

176

(7)

Analysis of the Code Tracking

180

(3)

Conclusion

183

(4)

References

184

(3)

Carrier Recovery for `Sub-Coherent' CDMA

187

(24)

Overview

187

(1)

Symbol-Aided Demodulation

188

(4)

System Model

188

(1)

Design of Modulator and Demodulator

189

(3)

BER Analysis for SAD

192

(3)

Optimum Wiener Filtering

192

(3)

Pilot-Aided Demodulation

195

(3)

System Model

195

(1)

Design of Modulator and Demodulator

196

(2)

BER Analysis for PAD

198

(1)

The Coded SAD and PAD Systems

198

(2)

Coded SAD

199

(1)

Coded PAD

200

(1)

Performance Results

200

(8)

Conclusions

208

(3)

References

209

(2)

Nonlinear Amplification of Synchronous CDMA

211

(28)

Overview

211

(2)

System Model

213

(3)

Transmitter

213

(2)

Nonlinear Amplifiers

215

(1)

Performance Analysis

216

(5)

Numerical Results

221

(3)

Conclusions

224

(15)

References

224

(1)

Performance Evaluation

225

(14)

Optimization Techniques for `Pseudo-Orthogonal' CDMA

239

(30)

Overview

239

(1)

Adaptive Power Control

239

(14)

Power Control System Design

241

(3)

Uplink Power Control Performance

244

(9)

Multi-User Detection

253

(13)

Methods of Multiuser Detection

253

(4)

An Interative MMSE Multi-User Detector

257

(9)

Conclusions

266

(3)

References

267

(2)

Index

269

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