Abstract :
The author begins by discussing the background, defining key terms and showing how wireless information systems can be viewed as a natural evolution of computing´s relentless march toward greater distribution and ubiquity of access. Next, the research issues faced by designers of wireless information systems are detailed, and some large-scale engineering challenges for such designers are presented. The existing cellular system architecture, evolved from telephony, is compared with an alternative architecture more closely integrated with a computer networking view of wireless systems. Existing wireless systems are reviewed, and the final section presents the author´s summary and conclusions, and charts the future of wireless information systems.<>
Keywords :
cellular radio; data communication systems; digital radio systems; local area networks; personal communication networks; satellite relay systems; cellular system architecture; computer networking; large-scale engineering challenges; mobility; telephony; wireless information systems; Cellular networks; Computer architecture; Computer networks; Design engineering; Distributed computing; Information systems; Large-scale systems; Telephony;