Optimizing Wireless Communication Systems (eBook)

Foreword 6
Preface 7
Acknowledgments 13
Contents 15
Contributors 19
Acronyms 30
Part I Resource Allocation 39
Power Control for Wireless Networks: Conventionaland QoS-Flexible Approaches 40
F. de S. Chaves, F. R. P. Cavalcanti, R. A. de Oliveira Neto,and R. B. Santos 40
Introduction 40
Models and Basic Definitions 41
Centralized Power Control 45
Distributed Power Control 48
Feasibility and Convergence Aspects of Distributed Power Control 52
Power Control for QoS-Flexible Services 55
Power Control Games 60
Prediction of Channel State Information 78
Conclusions and Topics for Future Research 83
References 83
RRM Performance for GSM/EDGE Radio Acess Network 87
Y. C. B. Silva, T. F. Maciel, and F. R. P. Cavalcanti 87
Introduction 87
Fundamentals of RRM in GSM/EDGE 88
Advanced Radio Resource Management for GSM/EDGE 94
Simulation and Modeling of GSM/EDGE Networks 101
RRM Performance in GSM/EDGE 107
Conclusions and Research Directions 127
References 128
Performance Optimization in Practical HSPA Networks for Wireless Broadband Access 131
M. I. J. Da Silva 131
Introduction to Broadband Wireless Access 131
System Overview 132
HSDPA Performance 148
HSDPA Field Trials: Mobility Issues 154
HSUPA Results: Field Trials 155
Applications Performance over HSPA 156
Capacity Planning 170
Conclusion and Research Directions 175
References 175
Congestion Control for Wireless Cellular Systems with Applications to UMTS 177
E. B. Rodrigues, F. R. P. Cavalcanti, and S. Wänstedt 177
Introduction 177
Congestion Control and QoS Management 178
Congestion Control Framework and Radio Resource Management 181
Resource-Based and QoS-Based Congestion Control 184
Resource-Based Framework for Circuit-Switched Networks 187
Case Study: WCDMA Performancewith Circuit-Switched Voice 194
QoS-Based Framework for Packet-Switched Networks 201
Case Study: HSDPA Performance with VoIPand WWW Services 210
Conclusions and Research Directions 216
References 218
Resource Allocation in Multiuser Multicarrier Wireless Systems with Applications to LTE 222
W. Freitas Jr., F. R. M. Lima, R. B. Santos, and F. R. P. Cavalcanti 222
Introduction 222
Scenarios for Radio Resource Allocation 224
Radio Resource Allocation Fundamental Problems 228
Optimization Problems in Multicarrier Resource Allocation 231
Optimization Tools for Multicarrier ResourceAllocation Problems 234
Algorithms for Frequency Resource Assignment 243
Subcarrier Assignment in 3GPP's Long-Term Evolution (LTE) 249
Power Allocation Algorithms and Performance in OFDMA 256
Conclusions and Research Directions 263
References 264
Common RRM for Multiaccess Wireless Networks 267
A. P. da Silva, L. S. Cardoso, V. A. de Sousa Jr., and F. R. P. Cavalcanti 267
Introduction 267
Multiaccess Networks 268
Common Radio Resource Management 270
Performance of Access Selection 277
Access Selection Solutions Performance in Practical Scenarios 283
Performance of Access Selection and Vertical Handover 288
Case Study: Access Selection in an UTRAN and WLAN 291
Conclusions and Research Directions 295
References 297
Part II Transceiver Architectures 300
Strategies for Link-Level Performance Assessment in the Simulation of Wireless Systems 301
E. M. G. Stancanelli, C. H. M. de Lima, and D. C. Moreira 301
Introduction 301
Rationale for Link-Level Performance Evaluation 302
Link-Level Modeling 304
Link-Level Software Development Framework 313
Design of Link-to-System Interfaces 323
Conclusions and Research Directions 338
References 339
Channel Equalization Techniques for Wireless Communications Systems 342
C. M. Panazio, A. O. Neves, R. R. Lopes, and J. M. T. Romano 342
Introduction and Motivation 342
Channel Modeling 344
Equalization Criteria and Adaptive Algorithms 345
Improving Equalization Performance Over Time Dispersive Channels 355
Equalization with Multiple Antennas 359
Turbo-equalization: Near Optimal Performance in Coded Systems 367
Conclusions 381
References 382
Channel Estimation for OFDM Systems: Techniques, Algorithms, and Performance 384
R. F. Vigelis, D. C. Moreira, and C. C. Cavalcante 384
Introduction 384
OFDM Fundamentals 384
Channel Estimation for Time-Varying Channels 396
Recursive Methods 407
Channel Estimation for MIMO-OFDM Wireless Systems 412
Conclusions and Research Directions 418
Appendix 1 419
Appendix 2 420
References 422
Link Adaptation for MIMO-OFDM Systems 424
D. C. Moreira, W. C. Freitas Jr., C. A. de Araújo, and C. C. Cavalcante 424
Introduction 424
Fundamentals of MIMO Transceiver Architectures 425
Advanced MIMO Transceiver Architectures 434
Link Adaptation in Multiple Signal Dimensions 441
Summary 447
References 448
Multiuser MIMO Systems Using STFMA PARAFAC Tensor Modeling 451
A. L. F. de Almeida, G. Favier, and J. C. M. Mota 451
Introduction 451
Tensor Decompositions: A New Signal Processing Tool 454
Background on the PARAFAC Tensor Decomposition 455
Space--Time--Frequency Multiple-Access MIMO System 458
STFMA Performance with Perfect Channel Knowledge 469
PARAFAC Tensor Modeling for the STFMA System 474
Blind Detection 476
Simulation Results with Blind Detection 482
Conclusions and Research Directions 486
References 487
MIMO Transceiver Design for Enhanced Performance Under Limited Feedback 492
Í. L. J. da Silva, A. L. F. de Almeida, F. R. P. Cavalcanti, and G. Favier 492
Introduction 492
Background on Limited Feedback-Based MIMO Systems 494
Channel-Adaptive Limited Feedback Beamforming Techniques 501
Linear Precoding for Spatial Multiplexing Systems 511
Linear Precoding for Space--Time-Coded Systems 520
Tensor-Based Space--Time Precoding (TSTP) 522
Conclusions and Research Directions 533
References 534
Index 537