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author: Henk Wymeersch (Massachusetts Institute of Technology)
discriptions:based the sum-product algrithm, a new method was used in communications
contents:
1 Introduction 1
1.1 Motivation 1
1.2 The structure of this book 2
2 Digital communication 5
2.1 Introduction 5
2.2 Digital communication 6
2.3 Single-user, single-antenna communication 9
2.4 Multi-antenna communication 12
2.5 Multi-user communication 15
2.6 Goals and working assumptions 17
2.7 Main points 17
3 Estimation theory and Monte Carlo techniques 19
3.1 Introduction 19
3.2 Bayesian estimation 19
3.3 Monte Carlo techniques 25
3.4 Main points 33
4 Factor graphs and the sum–product algorithm 35
4.1 A brief history of factor graphs 35
4.2 A ten-minute tour of factor graphs 37
4.3 Graphs, factors, and factor graphs 42
4.4 Marginals and the sum–product algorithm 50
4.5 Normal factor graphs 62
4.6 Remarks on factor graphs 66
4.7 The sum and product operators 71
4.8 Main points
5 Statistical inference using factor graphs 77
5.1 Introduction 77
5.2 General formulation 77
5.3 Messages and their representations 86
5.4 Loopy inference 100
5.5 Main points 104
6 State-space models 105
6.1 Introduction 105
6.2 State-space models 106
6.3 Hidden Markov models 113
6.4 Linear Gaussian models 117
6.5 Approximate inference for state-space models 127
6.6 Main points 133
7 Factor graphs in digital communication 135
7.1 Introduction 135
7.2 The general principle 135
7.3 Opening nodes 137
7.4 Main points 141
8 Decoding 143
8.1 Introduction 143
8.2 Goals 144
8.3 Block codes 145
8.4 Repeat–accumulate codes 149
8.5 Low-density parity-check codes 154
8.6 Convolutional codes 163
8.7 Turbo codes 170
8.8 Performance illustration 174
8.9 Main points 175
9 Demapping 177
9.1 Introduction 177
9.2 Goals 178
9.3 Bit-interleaved coded modulation 178
9.4 Trellis-coded modulation 182
9.5 Performance illustration 184
9.6 Main points 184
10 Equalization–general formulation 187
10.1 Introduction 187
10.2 Problem description 188
10.3 Equalization methods 189
10.4 Interaction with the demapping and the decoding node 203
10.5 Performance illustration 203
10.6 Main points
11 Equalization: single-user, single-antenna communication 207
11.1 Introduction 207
11.2 Single-carrier modulation 208
11.3 Multi-carrier modulation 213
11.4 Main points 216
12 Equalization: multi-antenna communication 217
12.1 Introduction 217
12.2 Single-carrier modulation 218
12.3 Multi-carrier modulation 223
12.4 Main points 225
13 Equalization: multi-user communication 227
13.1 Introduction 227
13.2 Direct-sequence code-division multiple access 228
13.3 Orthogonal frequency-division multiple access 234
13.4 Main points 236
14 Synchronization and channel estimation 237
14.1 Introduction 237
14.2 Channel estimation, synchronization, and factor graphs 237
14.3 An example 239
14.4 Main points |
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