The thoroughly revised and updated second edition of Ultra
Wideband Signals and Systems in Communication Engineering
features new standards, developments and applications. It addresses
not only recent developments in UWB communication systems, but also
related IEEE standards such as IEEE 802.15 wireless personal area
network (WPAN). Examples and problems are included in each
chapter to aid understanding.
Enhanced with new chapters and several sections including
Standardization, advanced topics in UWB Communications and more
applications, this book is essential reading for senior
undergraduates and postgraduate students interested in studying
UWB. The emphasis on UWB development for commercial consumer
communications products means that any communication engineer or
manager cannot afford to be without it!
New material included in the second edition:
* Two new chapters covering new regulatory issues for UWB systems
and new systems such as ad-hoc and sensor networks, MAC protocols
and space-time coding for UWB systems
* IEEE proposals for channel models and their specifications
* Interference and coexistence of UWB with other systems
* UWB antennas and arrays, and new types of antennas for UWB
systems such as printed bow-tie antennas
* Coverage of new companies working on UWB such as Artimi and
UBISense
* UWB potential for use in medicine, including cardiology,
respiratory medicine, obstetrics and gynaecology, emergency room
and acute care, assistance for disabled people, and throat and
vocals
Companion website features a solutions manual, Matlab programs
and electronic versions of all figures.
Autorentext
Mohammad Ghavami is Reader at the Centre for Telecommunications Research, King's College London. From 1998 to 2000 he was a JSPS Postdoctoral fellow in Yokohama National University, Japan, and from 2000 to 2002 he was a researcher at the Sony Computer Science Laboratories, Inc. in Tokyo, Japan.
Lachlan Michael is based at Hattori Information Processing Laboratory, Sony, Inc. and was previously Associate Researcher at Sony Corporation, Tokyo.
Ryuji Kohno is Visiting Researcher at the Fundamental Research Lab, Sony CSL and a Professor at the Yokohama National University, Yokohama, Japan. He was previouslyDirector of the Advanced Telecommunication Laboratory, Sony Coroporation, Tokyo.
Klappentext
The thoroughly revised and updated second edition of Ultra Wideband Signals and Systems in Communication Engineering features new standards, developments and applications. It addresses not only recent developments in UWB communication systems, but also related IEEE standards such as IEEE 802.15 wireless personal area network (WPAN). Examples and problems are included in each chapter to aid understanding.
Enhanced with new chapters and several sections including Standardization, advanced topics in UWB Communications and more applications, this book is essential reading for senior undergraduates and postgraduate students interested in studying UWB. The emphasis on UWB development for commercial consumer communications products means that any communication engineer or manager cannot afford to be without it!
New material included in the second edition:
- Two new chapters covering new regulatory issues for UWB systems and new systems such as ad-hoc and sensor networks, MAC protocols and space-time coding for UWB systems
- IEEE proposals for channel models and their specifications
- Interference and coexistence of UWB with other systems
- UWB antennas and arrays, and new types of antennas for UWB systems such as printed bow-tie antennas
- Coverage of new companies working on UWB such as Artimi and UBISense
- UWB potential for use in medicine, including cardiology, respiratory medicine, obstetrics and gynaecology, emergency room and acute care, assistance for disabled people, and throat and vocals
Companion website features a solutions manual, Matlab programs and electronic versions of all figures.
Inhalt
Preface xiii
Acknowledgments xvii
List of Figures xix
List of Tables xxix
Introduction 1
I.1 Ultra wideband overview 1
I.2 A note on terminology 2
I.3 Historical development of UWB 2
I.4 UWB regulation overview 3
I.4.1 Basic definitions and rules 4
I.5 Key benefits of UWB 5
I.6 UWB and Shannon's theory 6
I.7 Challenges for UWB 7
I.8 Summary 7
1 Basic properties of UWB signals and systems 9
1.1 Introduction 9
1.2 Power spectral density 10
1.3 Pulse shape 11
1.4 Pulse trains 14
1.5 Spectral masks 16
1.6 Multipath 17
1.7 Penetration characteristics 20
1.8 Spatial and spectral capacities 20
1.9 Speed of data transmission 21
1.10 Cost 22
1.11 Size 22
1.12 Power consumption 23
1.13 Summary 23
2 Generation of UWB waveforms 25
2.1 Introduction 25
2.1.1 Damped sine waves 26
2.2 Gaussian waveforms 28
2.3 Designing waveforms for specific spectral masks 31
2.3.1 Introduction 32
2.3.2 Multiband modulation 33
2.4 Practical constraints and effects of imperfections 39
2.5 Summary 40
3 Signal-processing techniques for UWB systems 43
3.1 The effects of a lossy medium on a UWB transmitted signal 43
3.2 Time domain analysis 46
3.2.1 Classification of signals 46
3.2.2 Some useful functions 48
3.2.3 Some useful operations 51
3.2.4 Classification of systems 54
3.2.5 Impulse response 57
3.2.6 Distortionless transmission 57
3.3 Frequency domain techniques 57
3.3.1 Fourier transforms 57
3.3.2 Frequency response approaches 58
3.3.3 Transfer function 60
3.3.4 Laplace transform 63
3.3.5 z-transform 64
3.3.6 The relationship between the Laplace transform, the Fourier transform, and the z-transform 67
3.4 UWB signal-processing issues and algorithms 68
3.5 Detection and amplification 71
3.6 Summary 72
4 UWB channel modeling 75
4.1 A simplified UWB multipath channel model 76
4.1.1 Number of resolvable multipath components 78
4.1.2 Multipath delay spread 78
4.1.3 Multipath intensity profile 79
4.1.4 Multipath amplitude-fading distribution 80
4.1.5 Multipath arrival times 81
4.2 Path loss model 83
4.2.1 Free space loss 83
4.2.2 Refraction 84
4.2.3 Reflection 84
4.2.4 Diffraction 85
4.2.5 Wave clutter 85
4.2.6 Aperture-medium coupling loss 85
4.2.7 Absorption 85
4.2.8 Example of free space path loss model 85
4.3 Two-ray UWB propagation model 87
4.3.1 Two-ray path loss 88
4.3.2 Two-ray path loss model 91
4.3.3 Impact of path loss frequency selectivity on UWB transmission 93
4.4 Frequency domain autoregressive model 96
4.4.1 Poles of the AR model 99
4.5 IEEE proposals for UWB channel models 100
4.5.1 An analytical description of the IEEE UWB indoor channel model 101
4.6 Summary 106
5 UWB communications 109
5.1 Introduction 109
5.2 UWB modulation methods 110
5.2.1 PPM 111
5.2.2 BPM 112
5.3 Other modulation methods 113
5.3.1 OPM 115
5.3.2 PAM 115
5.3.3 OOK 116
5.3.4 Summary of UWB modulation methods 116
5.4 Pulse trains 116
5.4.1 Gaussian pulse train 117
5.4.2 PN channel coding 117
5.4.3 Time-hopping PPM UWB system 119
5.5 UWB transmitter 120
5.6 UWB receiver 121
5.6.1 Detect…