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. Data Dissemination in
Wireless Computing Environments focuses on such mechanisms.
The purpose is to provide a thorough and comprehensive 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. Besides surveying existing methods, this book also compares and
evaluates some of the more promising schemes.
By:
Kian-Lee Tan, Beng Chin Ooi Imprint: Springer-Verlag New York Inc. Country of Publication: United States [Currently unable to ship to USA: see Shipping Info] Edition: Softcover reprint of the original 1st ed. 2002 Volume: 19 Dimensions:
Height: 235mm,
Width: 155mm,
Spine: 10mm
Weight: 290g ISBN:9781475772753 ISBN 10: 1475772750 Series:Advances in Database Systems Pages: 169 Publication Date:14 March 2013 Audience:
Professional and scholarly
,
Undergraduate
Format:Paperback Publisher's Status: Active
Models for Information Dissemination.- Data Broadcast Scheduling.- Indexing on Air.- Fault-tolerant Broadcast Organization.- Cache Invalidation Mechanisms.- Balancing Push and Pull.- Supporting Relational Operations.- Conclusions.