Multi-Carrier Systems & Solutions 2009 (eBook)

Preface 6
Program Committee 7
Additional Reviewers 7
Contents 8
Part I General Issues 12
Multicarrier Signals: A Natural Enabler for Cognitive Positioning Systems 13
1 Introduction 13
2 The (Modified) Cram´er-Rao Bound (CRB) 14
3 MCRB( 15
) in the Frequency Domain 15
4 Filter-Bank Multicarrier Ranging Signals 18
5 Towards Cognitive Positioning 19
6 And Finally: Cognitive Positioning 20
7 Conclusions and FurtherWorks 22
References 23
Linearisation of Transmitter and Receiver Nonlinearities in Optical OFDM Transmission 24
1 Introduction 24
2 System Model 24
3 Stochastic Analysis of the System Output Process 27
4 Power Constraint 29
5 Simulation Results 30
6 Conclusion 32
References 33
Multi-user OFDM Based on Braided Convolutional Codes 34
1 Introduction 34
2 Braided Convolutional Codes 35
3 Braided Code Division Multiple Access 38
4 Simulation Results 40
5 Conclusions 42
References 42
Interference Aware Subcarrier and Power Allocation in OFDMA-Based Cognitive Radio Networks 44
1 Introduction 44
2 System Model and Problem Formulation 46
3 Interference-Aware OFDMA Subcarrier and Power Allocation 48
4 Simulation Results 52
5 Conclusions 53
References 54
An Efficient ICA Based Approach to Multiuser Detection in MIMO OFDM Systems 55
1 Introduction 55
2 The Proposed Method 56
3 Blind Source Separation 59
4 Simulation Results 60
5 Conclusion 62
Appendix 62
References 63
Windowing in the Receiver for OFDM Systems in High-Mobility Scenarios 65
1 Introduction 65
2 System Model 66
3 Windows 68
4 Simulation Results 70
5 Conclusions 72
References 73
Part II Multiple-Input and Multiple-Output (MIMO) 74
MIMO–OFDM with Doppler Compensating Antennas in Rapidly Fading Channels 75
1 Introduction 75
2 System Model 76
3 Channel Estimation and Equalization 80
4 Simulation Results 81
5 Conclusions 83
References 83
Resource Allocation Algorithms for Minimum Rates Scheduling in MIMO–OFDM Systems 85
1 Introduction 85
2 System Model and Problem Formulation 86
3 Extended Eigenvalue Update Algorithm 88
4 Rate Based Coding Algorithm 89
5 Simulation Results 91
6 Conclusion 93
References 94
Transmit Antenna and Code Selection for Mimo Systems with Linear Receivers 95
1 Introduction 95
2 System Model 97
3 The TACS Selection Criteria 99
4 Simulation Results 100
5 Conclusions 105
References 105
Space-Time-Frequency Diversity in the Next Generation of Terrestrial Digital Video Broadcasting 107
1 Introduction 107
2 The DVB-T2 System 108
3 Doppler Diversity 111
4 Results 112
5 Summary 115
References 115
Part III Channel Estimation & Characterization
Robust 2-D Channel Estimation for Staggered Pilot Grids in Multi-Carrier Systems: LTE Downlink as an Example 118
1 Introduction 118
2 Robust 2-D Channel Estimation 120
3 Simulation Results 123
4 Conclusion 124
References 125
Block-IFDMA – Iterative Channel Estimation Versus Estimation with Interpolation Filters 127
1 Introduction 127
2 System Model 128
3 Channel Estimation 129
4 Performance Analysis 132
5 Conclusion 135
References 135
A Study on Channel Estimation Using EM Algorithm for MobileWiMAX Systems 137
1 Introduction 137
2 SignalModel 138
3 Channel Estimation Algorithm 140
4 Numerical Examples & Conclusions
5 Conclusions 144
References 145
A Technique for Correcting Residual Frequency Offset in OFDM Systems 146
1 Introduction 146
2 Signals and Offset Correction Method 147
3 Proposed Methods 149
4 Results and Discussions 151
5 Conclusions 154
References 155
A Joint Channel and Carrier Frequency Offset Estimation Based on Spread Pilot for Future Broadcasting Systems 156
1 Introduction 156
2 System Model 157
3 Simulation Results 161
4 Conclusion 164
References 164
Channel Characteristics of Different Floors for Joint Communications and Positioning 165
1 Introduction 165
2 Channel Measurement Campaign 166
3 Data Processing and Evaluation 169
4 Results 170
5 Conclusion 173
References 174
Part IV Long Term Evolution (LTE) 175
Uplink Power Control Performance in UTRAN LTE Networks 176
1 Introduction 176
2 Uplink Power Control Algorithm 177
3 Simulation Model 178
4 Simulation Results 178
5 Conclusions 184
References 185
Improving UMTS LTE Performance by UEP in High Order Modulation 186
1 Introduction 186
3 UEP and Proposed Bit Reordering 189
4 Simulation Results 191
5 Conclusion 194
References 195
Performance Evaluation of a Low-Complexity LTE Base Station Receiver 196
1 Introduction 196
2 Receiver Overview 197
3 Preamble Detection and Timing Advance 197
4 Channel Estimation 199
5 Discontinuous Timing Advance Tracking 200
6 MIMO Equalization and Frequency Offset Compensation 201
7 Turbo Decoding 203
8 Discussion 203
References 204
Part V Peak-to-Average Power Ratio (PAPR) 206
On DT-CWT Based OFDM: PAPR Analysis 207
1 Introduction 207
2 The Dual-Tree ComplexWavelet Transform (DT-CWT) 208
3 OFDM and WPM Systems 209
4 PAPR in OFDM Based on DT-CWT 212
5 Conclusions 215
References 215
SOCP Approach for PAPR Reduction Using Tone Reservation for the Future DVB-T/H Standards 218
1 Introduction 218
2 System Description 219
3 Dedicated Subcarriers Power Control 220
4 Performance Evaluation of the Method 222
5 Conclusions 224
References 224
Reduced-PAPR Code Allocation Strategy for MC-CDMA Transmissions 226
1 Introduction 226
2 System Description 227
3 PAPRAnalysis 228
4 Reduced PAPR Code Allocation 229
5 Numerical Results 232
6 Conclusions 234
References 235
Part VI Adaptive Transmission 236
Adaptive Multiuser OFDMA Systems with High Priority Users in the Presence of Imperfect CQI 237
1 Introduction 237
2 System Model 238
3 Channel Quality Information 238
4 Adaptive Transmission Applying WPFS 239
5 Joint Impact of Imperfect CQI and User Priority 241
6 Numerical Results 244
7 Conclusions 246
References 246
Adaptive BICM-OFDM Systems 247
1 Introduction 247
2 System Model 248
3 Link Adaptation for Single Antenna Systems 248
4 Extension to Multiple Antenna Systems 252
5 Conclusion 254
References 255
Power Allocation with Interference Constraint in Multicarrier Based Cognitive Radio Systems 256
1 Introduction 256
2 System Model and Problem Formulation 257
3 Proposed Algorithm 259
4 Multi User Resource Allocations in Downlink 261
5 Simulation Results 262
6 Conclusion 264
References 265
Limited-Feedback Multiuser MIMO-OFDM Downlink with Spatial Multiplexing and Per-Chunk / Per-Antenna User Scheduling 266
1 Introduction 266
2 Preliminaries 267
3 Multi-User MIMO-OFDM Downlink Transmission Schemes Based on Limited Feedback 268
4 Numerical Results 272
5 Conclusions 274
References 274
Part VII Performance Evaluation 276
Simple Series Form Formula of BER Performance of M-ary QAM/OFDM Signals Over Nonlinear Fading Channels 277
1 Introduction 277
2 System Description 278
3 Bit Error Rate Analysis 279
4 Numerical Results 283
5 Conclusion 285
References 286
A Novel Exponential Link Error Prediction Method for OFDM Systems 287
1 Introduction 287
2 Channel Model 288
3 PER Prediction Based on Effective SNR Mapping 289
4 291
ESM 291
5 Numerical Results 293
6 Conclusions 295
References 295
WIMAX Performance in the Airport Environment 297
1 Introduction 297
2 System Characteristics 298
3 Channel Model 301
4 Results 302
5 Conclusions 305
References 305
Throughput Enhancement Through Femto-Cell Deployment 307
1 Introduction 307
2 System Model and Simulation Setup 309
3 Results 310
4 Conclusion 314
References 315
Part VIII Modulation & Demodulation
Phase Rotation/MC-CDMA for Uplink Transmission 317
1 Introduction 317
2 Proposed System Model 318
3 Computer Simulation 322
4 Conclusions 325
References 325
Hierarchical Modulation in DVB-T/H Mobile TV Transmission 327
1 Introduction 327
2 Hierarchical Modulation 328
3 Laboratory Transmission Setup 329
4 Experimental Results 330
5 Conclusion 335
References 335
Efficient Compensation of Frequency Selective TX and RX IQ Imbalances in OFDM Systems 336
1 Introduction 336
2 System Model 337
3 IQ Imbalance Compensation Scheme 339
4 Simulation Results 342
5 Conclusion 344
References 344
Part IX Spectrum & Interference
Dynamic Cross-Layer Spectrum Allocation for Multi-Band High-Rate UWB Systems 346
1 Introduction 346
2 System Model 347
3 Optimal Spectrum Allocation 349
4 Cross-Layer Solution 351
5 System Performance 352
6 Conclusion 354
References 354
Egress Reduction for OFDM Via Transmit Windowing – Framework and Comparison 356
1 Introduction 356
2 System Model 357
3 TransmitWindowing Techniques 358
4 Performance Measure and Optimization 360
5 Comparison: Case Study 360
6 Conclusions 364
References 364
Interference Mitigation for the Future Aeronautical Communication System in the L-Band 365
1 Introduction 365
2 Modelling of Interference 366
3 Interference Mitigation 368
4 Simulation Results 371
5 Conclusions and Outlook 373
References 373
Part X Demonstration 375
Ranging and Communications with Impulse Radio Ultrawideband 376
1 Introduction 376
2 UWB System Description 377
3 UWB Transceiver System Description 378
4 Ranging and Positioning Technique 381
5 Results 383
6 Conclusions 383
References 384
Generic SDR Platform Used for Multi-Carrier Aided Localization 385
1 Introduction 385
2 Platform Overview 386
3 Software Features 389
4 Parameter Measurement Procedure 390
5 Conclusions 391
References 392