Ultra Wideband Systems with MIMO

by Kaiser, Thomas; Zheng, Feng

• ISBN13: 9780470712245
• ISBN10: 0470712244
• Edition: 1st
• Format: Hardcover
• Copyright: 2010-04-26
• Publisher: Wiley

Summary

Up-to-date coverage of the cutting-edge research on UWB Systems with Multiple AntennasThe authors investigate the possibilities and benefits of combining UWB and MIMO technologies; highlighting five aspects of this promising research field: channel capacity, space-time coding, beamforming, UWB-MIMO relay, and time-reversal transmission. Ultra Wideband Systems with Multiple-Antennas provides a systematic and in-depth discussion for UWB-MIMO issues. Up-to-date results are covered, some of which have never been published. Provides a thorough coverage combining the UWB and MIMO, outlining the opportunities and benefits created by the combination of these technologies Presents basics on UWB radios including the definition of UWB transmission and several commonly used UWB waveforms (mono-pulses) Highlights five aspects of this promising research field: channel capacity, space-time coding, beamforming, UWB-MIMO relay, and time-reversal transmission Aims to provide initiating "sparks" for the emerging technologies for short-range high data rate wireless communications and related applications Covers UWB MIMO channel measurement and models, Channel capacity, UWB-MIMO modulation and coding schemes, UWB beamforming and UWB Localization

Author Biography

Professor Thomas Kaiser, Leibniz University of Hannover, Germany
Professor Kaiser is the leader of the Institute of Communication Technology at the Leibniz University of Hannover, Germany, and is the founder and CEO of the spin-off company mimoOn GmbH. At mimoOn GmbH, he leads the scientific team to transfer the cutting edge signal processing algorithms combined with the up-to-date hardware, especially those for MIMO, into real products. Kaiser received the Ph.D. degree in 1995 with distinction and the German habilitation degree in 2000, both from Gerhard-Mercator-University, Duisburg, and in electrical engineering.

Professor Feng Zheng, Leibniz University of Hannover, Germany
Professor Zheng received the Ph.D. degree in automatic control in 1993 from Beijing University of Aeronautics and Astronautics, Beijing. He is now with Leibniz University of Hannover. He held Associate Professor at Chinese Academy of Sciences during 1995-1998 and Alexander-von-Humboldt Research Fellowship at University of Duisburg during 1999-2000. His research results on system and control theory are widely cited. From 2002, he has switched his research interests to signal processing, wireless communications and networks, especially on UWB and MIMO. He is one of the co-authors of the first paper on the channel capacity of UWB-MIMO systems.

Table of Contents

Preface	p. xi
Acknowledgements	p. xiii
Abbreviations	p. xv
Introduction	p. 1
Introduction	p. 1
UWB Basics	p. 2
MIMO Principle	p. 6
State-of-the-Art UWB-MIMO	p. 10
Scope of This Book	p. 13
Notation	p. 15
UWB-MIMO Channel Measurement and Models	p. 17
UWB-SISO Channel Model	p. 18
Large-Scale Path-Loss Models	p. 18
Small-Scale Fading Models	p. 20
UWB-MIMO Channel Model	p. 23
General Models	p. 23
Correlation Property	p. 24
Channel Measurement	p. 29
Measurement Setup	p. 29
Measured Results	p. 30
Ray-Tracing Simulation Tool	p. 32
Ray Tracing for Narrowband Systems	p. 32
Ray Tracing for UWB Systems	p. 35
Summary	p. 42
UWB Channel Capacity	p. 45
Introduction	p. 45
System Model	p. 46
Channel Capacity with Unknown CSI at the Transmitter	p. 47
Channel Capacity with Known CSI at the Transmitter	p. 51
The SISO Case	p. 51
The MIMO Case	p. 52
Special Case: SISO with Two Paths	p. 54
Simulation Results	p. 58
Channel Correlation	p. 68
Measured Channel Capacity	p. 69
Summary	p. 71
UWB-MIMO Space-Time Coding	p. 73
Intoduction	p. 73
A Revisit of Alamouti Space-Time Coding for Narrowband Systems	p. 74
Alamouti Space-Time Coding for UWB Systems	p. 78
The 1S/2A Coding Scheme	p. 78
The 2S/2A Coding Scheme	p. 80
Simulation Results	p. 82
General Space-Time Coding for UWB Systems	p. 84
Performance of Antenna Selection	p. 90
Spatio-Frequency Multiplexing in MB-OFDM-Based UWB Systems	p. 93
Summary	p. 98
UWB Beamforming and Localization	p. 99
Introduction	p. 99
Ideal UWB Impulse Beamforming	p. 100
The Main Lobe Beamwidth of UWB Beamformers	p. 102
Optimal Beamforming	p. 104
Various Aspects of UWB Beamformers	p. 106
UWB Localization	p. 111
Beamforming Approach	p. 113
More Than Two Beamformers	p. 115
The BeamLoc Approach	p. 117
NLOS Issue	p. 119
NLOS Mitigation Based on a Priori Information	p. 124
Multipath Issue	p. 127
Summary	p. 129
Distribution of Ranging Noise	p. 130
Time-Reversal UWB Systems	p. 135
Introduction	p. 135
Motication for the Time-Reversal Approach in UWB Systems	p. 137
Theoretical Basis	p. 138
Simulation Results	p. 140
Robustness of TR- and IC-Based Systems	p. 142
Two Schemes of UWB MIMO TR Systems	p. 145
Full TR Scheme	p. 146
Diagonal TR Scheme	p. 149
Pre-Equalizer Design for Spatial Multiplexing UWB SIMO TR Systems	p. 151
System Description	p. 151
Pre-Equalizer Design	p. 152
Numerical Results	p. 156
Antenna Selection for Time-Reversal UWB MIMO Systems	p. 161
Impact of Channel Imperfection on UWB TR Systems	p. 163
Channel Model	p. 163
Analysis of UWB SISO TR Systems	p. 165
Analysis of UWB MIMO TR Systems	p. 175
MISO TR Multiuser Communications	p. 179
Numerical Results	p. 182
Summary	p. 189
UWB Relay Systems	p. 191
Introduction	p. 191
UWB Relay Systems with SISO at Source and Destinaion	p. 194
Coherent Detection Systems	p. 194
Nonocherent Detection Systems	p. 201
Numerical Results and Concluding Remarks	p. 206
UWB Relay Systems with MIMO at Source and Destination	p. 211
Channel and Systems Models	p. 212
Receiver-CSI-Assisted Relay Systems	p. 213
Transmitter-CSI-Assisted Relay Systems	p. 222
Numerical Results and Discussion	p. 225
Opportunities Relaying for UWB Systems	p. 231
Summary	p. 233
Derivations of cdfs and pdfs of J and J	p. 234
Derivations of Equation (7.33)	p. 237
The pdf of the End-to-End SNR per Bit for the DCF Relay System	p. 237
References	p. 239
Index	p. 251
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