Ultra Wideband Signals and Systems in Communication Engineering

by Ghavami, M.; Michael, Lachlan; Kohno, Ryuji

• ISBN13: 9780470027639
• ISBN10: 0470027630
• Edition: 2nd
• Format: Hardcover
• Copyright: 2007-02-27
• Publisher: WILEY

Summary

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 vocalsCompanion website features a solutions manual, Matlab programs and electronic versions of all figures.

Author Biography

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.

Table of Contents

Preface

Acknowledgments

List of Figures

List of Tables

Introduction

Ultra wideband overview

A note on terminology

Historical development of UWB

UWB regulation overview

Basic definitions and rules

Key benefits of UWB

UWB and Shannon''s theory

Challenges for UWB

Summary

Basic properties of UWB signals and systems

Introduction

Power spectral density

Pulse shape

Pulse trains

Spectral masks

Multipath

Penetration characteristics

Spatial and spectral capacities

Speed of data transmission

Cost

Size

Power consumption

Summary

Generation of UWB waveforms

Introduction

Damped sine waves

Gaussian waveforms

Designing waveforms for specific spectral masks

Introduction

Multiband modulation

Practical constraints and effects of imperfections

Summary

Signal-processing techniques for UWB systems

The effects of a lossy medium on a UWB transmitted signal

Time domain analysis

Classification of signals

Some useful functions

Some useful operations

Classification of systems

Impulse response

Distortionless transmission

Frequency domain techniques

Fourier transforms

Frequency response approaches

Transfer function

Laplace transform

z-transform

The relationship between the Laplace transform, the Fourier transform, and the z-transform

UWB signal-processing issues and algorithms

Detection and amplification

Summary

UWB channel modeling

A simplified UWB multipath channel model

Number of resolvable multipath components

Multipath delay spread

Multipath intensity profile

Multipath amplitude-fading distribution

Multipath arrival times

Path loss model

Free space loss

Refraction

Reflection

Diffraction

Wave clutter

Aperture-medium coupling loss

Absorption

Example of free space path loss model

Two-ray UWB propagation model

Two-ray path loss

Two-ray path loss model

Impact of path loss frequency selectivity on UWB transmission

Frequency domain autoregressive model

Poles of the AR model

IEEE proposals for UWB channel models

An analytical description of the IEEE UWB indoor channel model

Summary

UWB communications

Introduction

UWB modulation methods

PPM

BPM

Other modulation methods

OPM

PAM

OOK

Summary of UWB modulation methods

Pulse trains

Gaussian pulse train

PN channel coding

Time-hopping PPM UWB system

UWB transmitter

UWB receiver

Detection

Pulse integration

Tracking

Rake receivers

Multiple access techniques in UWB

Frequency division multiple access UWB

Time division multiple access

Code division multiple access

Orthogonal pulse multiple access system

Capacity of UWB systems

Comparison of UWB with other wideband communication systems

CDMA

Comparison of UWB with DSSS and FHSS

OFDM

Interference and coexistence of UWB with other systems

WLANs

Bluetooth

GPS

Cellular systems

Wi-Max

The effect of narrowband interference on UWB systems

Summary

Advanced UWB pulse generation

Hermite pulses

Hermite polynomials

Orthogonal modified Hermite pulses

Modulated and modified Hermite pulses

Orthogonal prolate spheroidal wave functions

Introduction

Fundamentals of PSWFs

PSWF pulse generator

Wavelet packets in UWB PSM

PSM system model

Receiver structure

Summary

UWB antennas and arrays

Antenna fundamentals

Maxwell''s equations for free space

Wavelength

Antenna duality

Impedance matching

Voltage standing wave ratio and reflected power

Antenna bandwidth

Directivity and gain

Antenna field regions

Antenna di

Table of Contents provided by Publisher. All Rights Reserved.