The need for “information anywhere anytime” has been a driving force for the increasing growth in Web and Internet technology, wireless communication, and portable computing devices. The field of mobile computing is the result of the merger of these advances in computing and communication with the aim of providing a seamless and ubiquitous computing environment for mobile users. In such mobile environments, database applications are enhanced with useful features of wireless technology | Handbook of Wireless Networks and Mobile Computing Edited by Ivan Stojmenovic Copyright 2002 John Wiley Sons Inc. ISBNs 0-471-41902-8 Paper 0-471-22456-1 Electronic CHAPTER 26 Data Management in Wireless Mobile Environments SANDEEP K. S. GUPTA Department of Computer Science and Engineering Arizona State University Tempe PRADIP K. SRIMANI Department of Computer Science Clemson University Clemson South Carolina INTRODUCTION Theneed for information anywhere anytime has been a driving force for the increasing growth inWebandhaternettechnology wirelessconrnnmication and portable computing devices. The field of mobile computing is the result of the merger of these advances in um . . tn . . . 0 . cm-putmg environment for mobile users. In such mobileenvieonments database applications are enhanced with useful features of wireless technology. For example users are allowed to establish a mobile office from which they can communicate with other users access information andmmagetheir work while staying mobile. This feature is important for supporting ubiquitous services such as weather and forecasting services financial market pages roadmapsand dii tioia. ti lcnia i ics . point-ol -salcapplicat ions in-fieldworkdispatch andlaw enforcementandmilitarysupporttomobile ea-oatntsapaunstabinoper-a-iagronOitioas weicy addanpw dtmansion tothetacPmcatsaaltonenafon drts procass-ing oodroa-anitpi MppycoPt-vai p yroPtpmrascocraped -vithdiitainaaagemaat. tteatacdoao-eaagamaap s nd e rpcoveanhave tlarisrai-d indistriddteddatoOyresyttams. . arobComsdecame mpre gil f icait Casafe-p mninCybpcauspoftPp narrow bandwidtd oROywuveecrcomrnenicationcdppn s i e 10 1-10 rhor-e- tit a iifeof the p wc- suppty inm bi-edavicee enp rhpchanginglocatignson -onrntaaliibo n taon tromePime-incacha n rnetimc r la aa . n n acrdi it etans amln i ro Furthpr
