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Team-Fly®
ANY TIME, ANYWHERE
COMPUTING
puting Concepts and
Technology
The Kluwer International Series
In Engineering puter Science
ANYTIME, ANYWHERE
COMPUTING
puting Concepts and
Technology
Abdelsalam Helal
University of Florida
Gainesville, Florida, USA
Bert Haskell
MCC
Austin, Texas, USA
Jeffery L. Carter
Motorola
Austin, Texas, USA
Richard Brice
Darrell Woelk
Marek Rusinkiewicz
MCC
Austin, Texas, USA
KLUWER ACADEMIC PUBLISHERS
NEW YORK, BOSTON, DORDRECHT, LONDON, MOSCOW
eBook ISBN: 0-306-47301-1
Print ISBN: 0-792-38610-8
©2002 Kluwer Academic Publishers
New York, Boston, Dordrecht, London, Moscow
All rights reserved
No part of this eBook may be reproduced or transmitted in any form or by any means, electronic,
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Created in the United States of America
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CONTENTS
FOREWORD xi
PREFACE xiii
1 INTRODUCTION TO MOBILE
COMPUTING 1
Impressive Technology 2
Wireless and puting Architecture 4
Limitations of the Wireless and Mobile Environment 10
2 WIRELESS MUNICATION
NETWORKS 13
Digital Cellular Systems 15
Time-Division Multiple Access (TDMA) 15
Code-Division Multiple Access (CDMA) 16
The work Technology 18
In-room Infrared 18
In-room Radio Frequency 19
In-building Radio Frequency 19
Campus/Metropolitan Area works 20
Wide-Area Packet/Circuit Switched works 20
works 21
Mobility-Bandwidth Tradeoffs 21
Systems Issues 22
Multimedia Applications 25
3 PORTABLE INFORMATION APPLIANCES 27
vi ANY T IME, ANYWHERE C OMPUTING
Historical Evolution 27
The Advent of the PDA 32
puters 35
The Palm Pilot 36
Hand-puters 37
Sharp Power Zaurus 37
VADEM Clio 39