Data Dissemination in Wireless Computing Environments: 19 - Rilegato

Beng Chin Ooi; Kian-Lee Tan

Rilegato

ISBN 10: 0792378660 ISBN 13: 9780792378662

Casa editrice: Springer-Verlag GmbH, 2000

Riassunto

In our increasingly mobile world the ability to access information on demand at any time and place can satisfy people's information needs as well as confer on them a competitive advantage. The emergence of battery-operated, low-cost and portable computers such as palmtops and PDAs, coupled with the availability and exploitation of wireless networks, have made possible the potential for ubiquitous computing. Through the wireless networks, portable equipments will become an integrated part of existing distributed computing environments, and mobile users can have access to data stored at information servers located at the static portion of the network even while they are on the move. Traditionally, information is retrieved following a request-response model. However, this model is no longer adequate in a wireless computing environment. First, the wireless channel is unreliable and the bandwidth is low compared to the wired counterpart. Second, the environment is essentially asymmetric with a large number of mobile users accessing a small number of servers. Third, battery-operated portable devices can typically operate only for a short time because of the short battery lifespan. Thus, clients are expected to be disconnected most of the time. To overcome these limitations, there has been a proliferation of research efforts on designing data delivery mechanisms to support wireless computing more effectively. This work focuses on such mechanisms. The purpose is to provide a review of recent advances on energy-efficient data delivery protocols, efficient wireless channel bandwidth utilization, reliable broadcasting and cache invalidation strategies for clients with long disconnection time.

Su questo libro

Contenuti

Preface. 1. Introduction. 2. Models for Information Dissemination. 3. Data Broadcast Scheduling. 4. Indexing on Air. 5. Fault-Tolerant Broadcast Organization. 6. Cache Invalidation Mechanisms. 7. Balancing Push and Pull. 8. Supporting Relational Operations. 9. Conclusions. References. Index.

Product Description

Book by KianLee Tan Beng Chin Ooi

Dettagli dell'edizione

• Editore: Springer-Verlag GmbH
• Data di pubblicazione: 2000
• Lingua: Inglese
• ISBN 10: 0792378660
• ISBN 13: 9780792378662
• Rilegatura: Copertina rigida
• Numero di pagine: 188
• Contatto del produttore: ProductSafety@springernature.com; ProductSafety@springernature.com; ; Poststr. 9; Darmstadt; 64293; Germania