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Preface xiii
1 Fundamentals 1
1.1 Adaptive Communications and the Book Layout 1
1.2 Spread Spectrum Fundamentals 10
1.3 Theory versus Practice 16
References 19
2 Pseudorandom sequences 23
2.1 Properties of Binary Shift Register Sequences 23
2.2 Properties of Binary Maximal-Length Sequence 26
2.3 Sets of Binary Sequences with Small Cross-Correlation
Maximal Connected Sets of m-Sequences 30
2.4 Gold Sequences 30
2.5 Goldlike and Dual-BCH Sequences 33
2.6 Kasami Sequences 33
2.7 JPL Sequences 35
2.8 Kroncker Sequences 36
2.9 Walsh Functions 36
2.10 Optimum PN Sequences 37
2.11 Theory and Practice of PN Codes 39
2.12 PN Matched Filter 39
Symbols 40
References 41
3 Code acquisition 43
3.1 Optimum Solution 43
3.2 Practical Solutions 45
3.3 Code Acquisition Analysis 46
3.4 Code Acquisition in CDMA Network 51
3.5 Modeling of the Serial Code Acquisition Process for RAKE
Receivers in CDMA Wireless Networks with Multipath
and Transmitter Diversity 54
3.6 Two-Dimensional Code Acquisition in Spatially and Temporarily
White Noise 57
3.7 Two-Dimensional Code Acquisition in Environments with Spatially
Nonuniform Distribution of Interference 62
3.8 Cell Search in W-CDMA 71
References 75
4 Code tracking 79
4.1 Code-Tracking Loops 79
4.2 Code Tracking in Fading Channels 87
4.3 Signal Subspace-Based Channel Estimation for CDMA Systems 94
4.4 Turbo Processor Aided RAKE Receiver Synchronization
for UMTS W-CDMA 102
Appendix: Linear and Matrix Algebra 114
References 120
5 Modulation and demodulation 123
5.1 Maximum Likelihood Estimation 123
5.2 Frequency-Error Detection 125
5.3 Carrier Phase Measurement: Nonoffset Signals 129
5.4 Performance of the Frequency and Phase Synchronizers 136
Symbols 145
References 145
6 Power control 147
6.1 Algorithms 147
6.2 Closed-Loop Power Control in DS-CDMA Cellular
System: Problem Definition 150
6.3 Reference Power Level 156
6.4 Feedback Control Loop Analysis 159
6.5 Nonlinear Power Control 163
6.6 Fuzzy Logic Power Control 165
6.7 Imperfect Power Control in CDMA Systems 177
6.8 Adaptive Communications 182
Symbols 185
References 186
7 Interference suppression and CDMA overlay 191
7.1 Narrowband Interference Suppression 191
7.2 Generalization of Narrowband Interference Suppression 194
7.3 Recursive Solutions for the Filter Coefficients |
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