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您需要 登录 才可以下载或查看,没有账号?注册  Learn about Ultra-wideband (UWB) transmission - the most talked about application in wireless communications.
 UWB wireless communication is a revolutionary technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low power for a short distance. This exciting new text covers the fundamental aspects of UWB wireless communications systems for short-range communications. It also focuses on more advanced information about networks and applications. Chapters include: Radio Propagation and Large Scale Variations, Pulse Propagation and Channel Modelling, MIMO (Multiple Input, Multiple Output) RF Subsystems and Ad Hoc Networks.
 Focuses on UWB wireless communications rather than UWB radar, which has been covered before.
 Provides long and short-term academic and technological value.
 Teaches readers the fundamentals, challenges and up-to-date technical processes in this field.
 
 Preface xv
 Contributors xix
 Chapter 1 Introduction to Ultra Wideband 1
 Hu¡§seyin Arslan and Maria-Gabriella Di Benedetto
 1.1 Introduction 1
 1.1.1 Benefits of UWB 2
 1.1.2 Applications 3
 1.1.3 Challenges 3
 1.2 Scope of the Book 4
 Chapter 2 UWB Channel Estimation and Synchronization 11
 Irena Maravic and Martin Vetterli
 2.1 Introduction 11
 2.2 Channel Estimation at SubNyquist Sampling Rate 14
 2.2.1 UWB Channel Model 14
 2.2.2 Frequency-Domain Channel Estimation 15
 2.2.3 Polynomial Realization of the Model-Based Methods 16
 2.2.4 Subspace-Based Approach 20
 2.2.5 Estimation of Closely Spaced Paths 24
 2.3 Performance Evaluation 25
 2.3.1 Analysis of Noise Sensitivity 25
 2.3.2 Computational Complexity and Alternative Solutions 27
 2.3.3 Numerical Example 28
 2.4 Estimating UWB Channels with Frequency-Dependent Distortion 29
 2.4.1 Algorithm Outline 31
 2.5 Channel Estimation from Multiple Bands 32
 2.5.1 Filter Bank Approach 32
 2.5.2 Estimation from Nonadjacent Bands 32
 2.6 Low-Complexity Rapid Acquisition in UWB Localizers 34
 2.6.1 Two-Step Estimation 36
 2.7 Conclusions 39
 Chapter 3 Ultra Wideband Geolocation 43
 Sinan Gezici, Zafer Sahinoglu, Hisashi Kobayashi,
 and H. Vincent Poor
 3.1 Introduction 43
 3.2 Signal Model 44
 3.3 Positioning Techniques 44
 3.3.1 Angle of Arrival 45
 3.3.2 Received Signal Strength 49
 3.3.3 Time-Based Approaches 51
 3.4 Main Sources of Error in Time-Based Positioning 52
 3.4.1 Multipath Propagation 52
 3.4.2 Multiple Access Interference 53
 3.4.3 Nonline-of-Sight Propagation 53
 3.4.4 High Time Resolution of UWB Signals 54
 3.5 Ranging and Positioning 55
 3.5.1 Relationship Between Ranging and Optimal
 Positioning Algorithms 55
 3.5.2 ToA Estimation Algorithms 58
 3.5.3 Two-Way Ranging Protocols 69
 3.6 Location-Aware Applications 70
 3.7 Conclusions 71
 Chapter 4 UWB Modulation Options 77
 Hu¨seyin Arslan, Iÿsmail Gu¨enc¸, and Sadia Ahmed
 4.1 Introduction 77
 4.2 UWB Signaling Techniques 78
 4.2.1 UWB-IR Signaling 79
 4.2.2 Multiband UWB 83
 4.2.3 Multicarrier UWB 85
 4.2.4 OFDM 85
 4.3 Data Mapping 87
 4.3.1 Binary Data Mapping Schemes 87
 4.3.2 M-ary Data Mapping Schemes 89
 4.4 Spectral Characteristics 91
 4.5 Data Mapping and Transceiver Complexity 92
 4.6 Modulation Performances in Practical Conditions 93
 4.6.1 Effects of Multipath 93
 4.6.2 Effects of Multiple Access Interference 95
 4.6.3 Effects of Timing Jitter and Finger
 Estimation Error 96
 4.7 Conclusion 99
 Chapter 5 Ultra Wideband Pulse Shaper Design 103
 Zhi Tian, Timothy N. Davidson, Xiliang Luo, Xianren Wu,
 and Georgios B. Giannakis
 5.1 Introduction 103
 5.2 Transmit Spectrum and Pulse Shaper 105
 5.3 FIR Digital Pulse Design 108
 5.4 Optimal UWB Single Pulse Design 110
 5.4.1 Parks¨CMcClellan Algorithm 110
 5.4.2 Optimal UWB Pulse Design via Direct Maximization
 of NESP 111
 5.4.3 Constrained Frequency Response Approximation 113
 5.4.4 Constrained Frequency Response Design with
 Linear Phase Filters 114
 5.5 Optimal UWB Orthogonal Pulse Design 115
 5.5.1 Orthogonality Formulation 115
 5.5.2 Sequential UWB Pulse Design 117
 5.5.3 Sequential UWB Pulse Design with Linear
 Phase Filters 118
 5.6 Design Examples and Comparisons 120
 5.6.1 Single-Pulse Designs and their Spectral
 Utilization Efficiency 120
 5.6.2 Multiband Pulse Design 122
 5.6.3 Multiple Orthogonal Pulse Design 123
 5.6.4 Pulse Designs for Narrowband Interference Avoidance 125
 5.6.5 Impact of Pulse Designs on Transceiver
 Power Efficiency 126
 5.7 Conclusions 128
 Chapter 6 Antenna Issues 131
 Zhi Ning Chen
 6.1 Introduction 131
 6.2 Design Considerations 132
 6.2.1 Description of Antenna Systems 132
 6.2.2 Single-Band and Multiband Schemes 134
 6.2.3 Source Pulses 136
 6.2.4 Transmit Antenna and PDS 136
 6.2.5 Transmit¨CReceive Antenna System 141
 6.3 Antenna and Pulse versus BER Performance 148
 6.3.1 Pulsed UWB System 148
 6.3.2 Effects of Antennas and Pulses 151
 Chapter 7 Ultra Wideband Receiver Architectures 157
 Hu¡§seyin Arslan
 7.1 Introduction 157
 7.2 System Model 158
 7.3 UWB Receiver Related Issues 160
 7.3.1 Sampling 160
 7.3.2 UWB Channel and Channel Parameters Estimation 161
 7.3.3 Interference in UWB 164
 7.3.4 Other Receiver-Related Issues 165
 7.4 TH-IR-UWB Receiver Options 165
 7.4.1 Optimal Matched Filter 167
 7.4.2 TR-Based Scheme 171
 7.4.3 Differential Detector 175
 7.4.4 Energy Detector 176
 7.5 Conclusion 178
 Chapter 8 Ultra Wideband Channel Modeling and Its Impact on
 System Design 183
 Chia-Chin Chong
 8.1 Introduction 183
 8.2 Principles and Background of UWB Multipath
 Propagation Channel Modeling 184
 8.2.1 Basic Multipath Propagation Mechanisms 184
 8.2.2 Classification of UWB Channel Models 185
 8.3 Channel Sounding Techniques 187
 8.3.1 Time-Domain Technique 187
 8.3.2 Frequency-Domain Technique 188
 8.4 UWB Statistical-Based Channel Modeling 189
 8.4.1 Modeling Philosophy and Mathematical Framework 189
 8.4.2 Large-Scale Channel Characterization 190
 8.4.3 Small-Scale Channel Characterization 193
 8.4.4 Temporal Dispersion and Correlation Properties 197
 8.5 Impact of UWB Channel on System Design 199
 8.6 Conclusion 200
 Chapter 9 MIMO and UWB 205
 Thomas Kaiser
 9.1 Introduction 205
 9.2 Potential Benefits of MIMO and UWB 206
 9.3 Literature Review of UWB Multiantenna Techniques 208
 9.3.1 Spatial Multiplexing 208
 9.3.2 Spatial Diversity 209
 9.3.3 Beamforming 209
 9.3.4 Related Topics 210
 9.4 Spatial Channel Measurements and Modeling 211
 9.4.1 Spatial Channel Measurements 211
 9.4.2 Spatial Channel Modeling 213
 9.5 Spatial Multiplexing 215
 9.6 Spatial Diversity 216
 9.7 Beamforming 220
 9.8 Conclusion and Outlook 223
 Chapter 10 Multiple-Access Interference Mitigation in Ultra
 Wideband Systems 227
 Sinan Gezici, Hisashi Kobayashi, and H. Vincent Poor
 10.1 Introduction 227
 10.2 Signal Model 228
 10.2.1 Transmitted Signal 228
 10.2.2 Received Signal 229
 10.3 Multiple-Access Interference Mitigation at the Receiver Side 231
 10.3.1 Maximum-Likelihood Sequence Detection 232
 10.3.2 Linear Receivers 232
 10.3.3 Iterative (Turbo) Algorithms 240
 10.3.4 Other Receiver Structures 243
 10.4 Multiple-Access Interference Mitigation at the
 Transmitter Side 244
 10.4.1 Time-Hopping Sequence Design for MAI Mitigation 245
 10.4.2 Pseudochaotic Time Hopping 246
 10.4.3 Multistage Block-Spreading UWB Access 247
 10.5 Concluding Remarks 248
 CONTENTS ix
 Chapter 11 Narrowband Interference Issues in Ultra Wideband
 Systems 255
 Hu¡§seyin Arslan and Mustafa E. Sahin
 11.1 Introduction 255
 11.2 Effect of NBI in UWB Systems 258
 11.3 Avoiding NBI 261
 11.3.1 Multicarrier Approach 261
 11.3.2 Multiband Schemes 263
 11.3.3 Pulse Shaping 264
 11.3.4 Other NBI Avoidance Methods 266
 11.4 Canceling NBI 267
 11.4.1 MMSE Combining 268
 11.4.2 Frequency Domain Techniques 268
 11.4.3 Time¨CFrequency Domain Techniques 269
 11.4.4 Time Domain Techniques 270
 11.5 Conclusion and Future Research 271
 Chapter 12 Orthogonal Frequency Division Multiplexing for
 Ultra Wideband Communications 277
 Ebrahim Saberina and Ahmed H. Tewfik
 12.1 Introduction 277
 12.2 Multiband OFDM System 278
 12.2.1 Band Planning 278
 12.2.2 Sub-Band Hopping 278
 12.2.3 OFDM Modulation 280
 12.2.4 Frequency Repetition Spreading 280
 12.2.5 Time Repetition Spreading 280
 12.2.6 Coding 281
 12.2.7 Supported Bit Rates 281
 12.2.8 MB-OFDM Transceiver 282
 12.2.9 Improvement to MB-OFDM 283
 12.3 Multiband Pulsed-OFDM UWB system 284
 12.3.1 Pulsed-OFDM Transmitter 284
 12.3.2 Pulsed-OFDM Signal Spectrum 284
 12.3.3 Digital Equivalent Model and Diversity of
 Pulsed-OFDM 286
 12.3.4 Pulsed-OFDM Receiver 288
 12.3.5 Selecting the Up-sampling Factor 289
 12.4 Comparing MB-OFDM and MB-Pulsed-OFDM systems 290
 12.4.1 System Parameters 290
 12.4.2 Complexity Comparision 290
 12.4.3 Power Consumption Comparison 290
 12.4.4 Chip Area Comparison 291
 12.4.5 Performance Comparison 293
 12.5 Conclusion 295
 Chapter 13 UWB Networks and Applications 297
 Krishna M. Sivalingam and Aniruddha Rangnekar
 13.1 Introduction 297
 13.2 Background 298
 13.2.1 UWB Physical Layer 298
 13.2.2 IEEE 802.15.3 Standards 299
 13.3 Medium Access Protocols 300
 13.3.1 IEEE 802.15.3 MAC Protocol 300
 13.3.2 Impact of UWB Channel Acquisition Time 303
 13.3.3 Multiple Channels 305
 13.4 Network Applications 310
 13.5 Summary and Discussion 311
 Acknowledgments 311
 Chapter 14 Low-Bit-Rate UWB Networks 315
 Luca DeNardis and Gian Mario Maggio
 14.1 Low Data-Rate UWB Network Applications 315
 14.1.1 802.15.4a: A Short History 315
 14.1.2 The 802.15.4a PHY 316
 14.1.3 PHY: 802.15.4a versus 802.15.4 316
 14.1.4 Technical Requirements 317
 14.1.5 Applications 319
 14.2 The 802.15.4 MAC Standard 321
 14.2.1 Network Devices and Topologies 321
 14.2.2 Medium Access Strategy 322
 14.2.3 From 802.15.4 to 802.15.4a 324
 14.3 Advanced MAC Design for Low-Bit-Rate UWB Networks 324
 14.3.1 (UWB)2: Uncoordinated, Wireless, Baseborn Medium
 Access for UWB Communication Networks 325
 14.3.2 Transmission Procedure 328
 14.3.3 Reception Procedure 331
 14.3.4 Simulation Results 333
 CONTENTS xi
 Chapter 15 An Overview of Routing Protocols for Mobile
 Ad Hoc Networks 341
 David A. Sumy, Branimir Vojcic, and Jinghao Xu
 15.1 Introduction 341
 15.2 Ad Hoc Networks 343
 15.3 Routing in MANETs 345
 15.4 Proactive Routing 345
 15.4.1 DSDV 346
 15.4.2 WRP 348
 15.4.3 CGSR 350
 15.4.4 STAR 351
 15.4.5 HSR 352
 15.4.6 OLSR 355
 15.4.7 TBRPF 356
 15.4.8 DREAM 358
 15.4.9 GSR 360
 15.4.10 FSR 360
 15.4.11 HR 362
 15.4.12 HSLS and A-HSLS 363
 15.5 Reactive Routing 364
 15.5.1 DSR 365
 15.5.2 ARA 367
 15.5.3 ABR 369
 15.5.4 AODV 372
 15.5.5 BSR 374
 15.5.6 CHAMP 376
 15.5.7 DYMO 377
 15.5.8 DNVR 378
 15.5.9 LAR 380
 15.5.10 LBR 381
 15.5.11 MPABR 383
 15.5.12 NDMR 384
 15.5.13 PLBM 385
 15.5.14 RDMAR 387
 15.5.15 SOAR 388
 15.5.16 TORA 391
 15.6 Power-Aware Routing 393
 15.6.1 BEE 394
 15.6.2 EADSR 395
 15.6.3 MTPR/MBCR/MMBCR/CMMBCR 395
 15.6.4 PARO 396
 15.6.5 PAWF 398
 15.6.6 MFP/MIP/MFPenergy/MIPenergy 400
 15.7 Hybrid Routing 400
 15.7.1 MultiWARP 401
 15.7.2 SHARP 402
 15.7.3 SLURP 403
 15.7.4 ZRP 406
 15.7.5 AZRP 408
 15.7.6 IZR 408
 15.7.7 TZRP 408
 15.8 Other 410
 15.9 Conclusion 411
 Appendix 418
 Chapter 16 Adaptive UWB Systems 429
 Francesca Cuomo and Crishna Martello
 16.1 Introduction 429
 16.1.1 Related Work on Adaptive UWB Systems 431
 16.2 A Distributed Power-Regulated Admission Control
 Scheme for UWB 432
 16.2.1 Problem Formalization 434
 16.2.2 Power Selection in UWB 435
 16.2.3 Steps of the Access Scheme 438
 16.3 Performance Analysis 439
 16.3.1 Impact of the Initial MEI on Performance of
 MEI-Based Power Regulation Schemes 442
 16.3.2 Performance Behavior as a Function of the Offered
 Load 445
 16.4 Summary 449
 Chapter 17 UWB Location and Tracking¡ªA Practical Example
 of an UWB-Based Sensor Network 451
 Ian Oppermann, Kegen Yu, Alberto Rabbachin,
 Lucian Stoica, Paul Cheong, Jean-Philippe Montillet,
 and Sakari Tiuraniemi
 17.1 Introduction 451
 17.2 Multiple Access in UWB Sensor Systems 452
 17.2.1 Location/Ranging Support 453
 17.2.2 Constraints and Implications of UWB Technologies
 on MAC Design 453
 17.3 UWB Sensor Network Case Study 454
 17.4 System Description¡ªUWEN 456
 17.4.1 Communications System 456
 17.4.2 Transmitted Signal 456
 17.4.3 Framing Structure 458
 17.4.4 Location Approach 458
 17.5 System Implementation 459
 17.5.1 Transceiver Overview 459
 17.5.2 Transmitter 460
 17.5.3 UWB Pulse Generator 462
 17.6 Location System 463
 17.7 Position Calculation Methods 468
 17.8 Tracking Moving Objects 473
 17.8.1 Simulation Results 474
 17.9 Conclusion 476
 Acknowledgments 477
 Index 481
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