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Preface | xi | |
Introduction | xvii | |
1. | Overview of Non-Iterative Detection | 1 |
1.1 | Decision Theory Framework | 1 |
1.1.1 | The Bayes Decision Rule | 3 |
1.1.2 | Composite Hypothesis Testing | 4 |
1.1.3 | Statistical Sufficiency | 6 |
1.2 | MAP Symbol and Sequence Detection | 7 |
1.2.1 | The General Combining and Marginalization Problem and Semi-Ring Algorithms | 15 |
1.2.2 | Detection with Imperfect CSI | 23 |
1.3 | Data Detection for an FSM in Noise | 28 |
1.3.1 | Generic FSM Model | 28 |
1.3.2 | Perfect Channel State Information | 31 |
1.3.3 | Detection with Imperfect CSI | 45 |
1.4 | Performance Bounds Based on Pairwise Error Probability | 49 |
1.4.1 | An Upper Bound using Sufficient Neighborhood Sets | 51 |
1.4.2 | Lower Bounds Based on Uniform Side Information | 54 |
1.4.3 | An Upper Bound for MAP-SqD | 59 |
1.4.4 | A Lower Bound for MAP-SyD | 64 |
1.5 | Chapter Summary | 67 |
1.6 | Problems | 68 |
2. | Principles of Iterative Detection | 77 |
2.1 | Optimal Detection in Concatenated Systems | 77 |
2.2 | The Marginal Soft-Inverse of a System | 85 |
2.2.1 | Some Common Subsystems | 88 |
2.3 | Iterative Detection Conventions | 95 |
2.3.1 | Summary of a General Iterative Detector | 98 |
2.3.2 | Explicit Index Block Diagrams | 100 |
2.4 | Iterative Detection Examples | 101 |
2.4.1 | Normalization Methods and Knowledge of the AWGN Noise Variance | 101 |
2.4.2 | Joint "Equalization" and Decoding | 105 |
2.4.3 | Turbo Codes | 111 |
2.4.4 | Multiuser Detection | 120 |
2.5 | Finite State Machines SISOs | 128 |
2.5.1 | The Forward-Backward Fixed-Interval SISO | 130 |
2.5.2 | Fixed-Lag SISOs | 131 |
2.5.3 | Forward-Only (L[superscript 2]VS) FL-SISO | 133 |
2.5.4 | Sliding Window SISOs | 136 |
2.5.5 | A Tree-Structured SISO | 138 |
2.5.6 | Variations on Completion and Combining Windows | 142 |
2.5.7 | Soft-Output Viterbi Algorithms | 143 |
2.6 | Message Passing on Graphical Models | 144 |
2.6.1 | Optimality Conditions for Message Passing | 146 |
2.6.2 | Revisiting the Iterative Detection Conventions | 156 |
2.6.3 | Valid Configuration Checks | 161 |
2.6.4 | Other Graphical Models | 169 |
2.7 | On the Non-uniqueness of an Iterative Detector | 175 |
2.7.1 | Additional Design Guidelines | 181 |
2.8 | Summary and Open Problems | 182 |
2.9 | Problems | 184 |
3. | Iterative Detection for Complexity Reduction | 193 |
3.1 | Complexity Reduction Tools | 193 |
3.1.1 | Operation Simplification | 194 |
3.1.2 | Decision Feedback Techniques | 194 |
3.2 | Modified Iterative Detection Rules | 199 |
3.2.1 | Altering the Convergence Rate | 199 |
3.2.2 | Modified Initialization Schemes | 202 |
3.3 | A Reduced-State SISO with Self-Iteration | 204 |
3.3.1 | Reduced-State SISO Algorithm | 205 |
3.3.2 | Example Applications of the RS-SISO | 209 |
3.4 | A SISO Algorithm for Sparse ISI Channels | 213 |
3.4.1 | Sparse ISI Channel | 213 |
3.4.2 | Existing Algorithms for S-ISI Channels | 217 |
3.4.3 | The Sparse SISO Algorithms for S-ISI Channels | 218 |
3.4.4 | Features of the S-SISOs | 223 |
3.4.5 | Design Rules for the S-SISO Algorithms | 223 |
3.4.6 | Using the Sparse SISO Algorithms | 229 |
3.4.7 | On Performance Bounds for S-ISI Channels | 231 |
3.5 | Summary and Open Problems | 234 |
3.6 | Problems | 235 |
4. | Adaptive Iterative Detection | 239 |
4.1 | Exact Soft Inverses--Optimal Algorithms | 242 |
4.1.1 | Separate Sequence and Parameter Marginalization | 243 |
4.1.2 | Joint Sequence and Parameter Marginalization | 244 |
4.2 | Approximate Soft Inverses--Adaptive SISO Algorithms | 246 |
4.2.1 | Separate Sequence and Parameter Marginalization | 246 |
4.2.2 | Joint Sequence and Parameter Marginalization | 248 |
4.2.3 | Fixed-Lag Algorithms | 250 |
4.2.4 | Forward Adaptive and Forward-Backward Adaptive Algorithms | 252 |
4.3 | TCM in Interleaved Frequency-Selective Fading Channels | 253 |
4.4 | Concatenated Convolutional Codes with Carrier Phase Tracking | 259 |
4.4.1 | SCCC with Carrier Phase Tracking | 259 |
4.4.2 | PCCC with Carrier Phase Tracking | 262 |
4.5 | Summary and Open Problems | 268 |
4.6 | Problems | 269 |
5. | Applications in Two Dimensional Systems | 273 |
5.1 | Two Dimensional Detection Problem | 273 |
5.1.1 | System Model | 273 |
5.1.2 | Optimal 2D Data Detection | 274 |
5.2 | Performance Bounds for Optimal 2D Detection | 276 |
5.2.1 | Finding Small Distances | 281 |
5.3 | Iterative 2D Data Detection Algorithms | 283 |
5.3.1 | Iterative Concatenated Detectors | 283 |
5.3.2 | Distributed 2D SISO Algorithms | 290 |
5.4 | Data Detection in POM Systems | 294 |
5.4.1 | POM System Model | 294 |
5.4.2 | Existing Detection Algorithms | 296 |
5.4.3 | The Performance of Iterative Detection Algorithms | 297 |
5.5 | Digital Image Halftoning | 300 |
5.5.1 | Baseline Results | 301 |
5.5.2 | Random Biasing | 302 |
5.5.3 | Larger Filter Support Regions | 306 |
5.5.4 | High Quality and Low Complexity using 2D-GM2 | 307 |
5.6 | Summary and Open Problems | 308 |
5.7 | Problems | 310 |
6. | Implementation Issues: a Turbo Decoder Design Case Study | 315 |
6.1 | Quantization Effects and Bitwidth Analysis | 316 |
6.1.1 | Quantization of Channel Metrics | 316 |
6.1.2 | Bitwidth Analysis of the Forward/Backward State Metrics | 320 |
6.1.3 | Soft-Out Metric Bitwidths | 323 |
6.2 | Initialization of State Metrics | 326 |
6.3 | Interleaver Design and State Metric Memory | 328 |
6.4 | Determination of Clock Cycle Time and Throughput | 330 |
6.5 | Advanced Design Methods | 333 |
6.5.1 | Block-level Parallelism | 333 |
6.5.2 | Radix-4 SISO Architectures | 334 |
6.5.3 | Fixed and Minimum Lag SISOs | 335 |
6.5.4 | Minimum Half Window (Tiled) SISOs | 335 |
6.5.5 | Sliding Window SISOs | 336 |
6.5.6 | Tree SISOs | 336 |
6.5.7 | Low-Power Turbo Decoding | 337 |
6.6 | Problems | 338 |
References | 341 | |
Index | 357 |
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Add Iterative Detection, Iterative Detection: Adaptivity, Complexity Reduction, and Applications is a primary resource for both researchers and teachers in the field of communication. Unlike other books in the area, it presents a general view of iterative detection that does, Iterative Detection to the inventory that you are selling on WonderClubX
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Add Iterative Detection, Iterative Detection: Adaptivity, Complexity Reduction, and Applications is a primary resource for both researchers and teachers in the field of communication. Unlike other books in the area, it presents a general view of iterative detection that does, Iterative Detection to your collection on WonderClub |