Proceedings ArticleDOI
Energy-efficient caching for wireless mobile computing
Kung-Lung Wu,Philip S. Yu,Ming-Syan Chen +2 more
- pp 336-343
TLDR
An energy-efficient cache invalidation method, called GCORE (Grouping with COld update-set REtention), that allows a mobile computer to operate in a disconnected mode to save the battery while still retaining most of the caching benefits after a reconnection is presented.Abstract:
Caching can reduce the bandwidth requirement in a mobile computing environment. However, due to battery power limitations, a wireless mobile computer may often be forced to operate in a doze (or even totally disconnected) mode. As a result, the mobile computer may miss some cache invalidation reports broadcast by a server, forcing it to discard the entire cache contents after waking up. In this paper, we present an energy-efficient cache invalidation method, called GCORE (Grouping with COld update-set REtention), that allows a mobile computer to operate in a disconnected mode to save the battery while still retaining most of the caching benefits after a reconnection. We present an efficient implementation of GCORE and conduct simulations to evaluate its caching effectiveness. The results show that GCORE can substantially improve mobile caching by reducing the communication bandwidth (or energy consumption) for query processing.read more
Citations
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Journal ArticleDOI
Energy-efficient selective cache invalidation
Jun Cai,Kian-Lee Tan +1 more
TL;DR: This study shows that the proposed schemes, based on periodic broadcast of invalidation reports, are not only effective in salvaging the cache content that are still valid (and hence result in lower access time), but are also efficient in energy utilization.
Proceedings ArticleDOI
On the design of relay caching in cellular networks for energy efficiency
TL;DR: This work designs a relay caching mechanism to improve the energy efficiency in cellular networks, especially for multimedia applications, and forms the problem as a Markov decision process (MDP) and obtains the optimal decision table.
MonographDOI
Advances in Mobile Commerce Technologies
Keng Siau,Ee-Peng Lim +1 more
TL;DR: In this article, the authors present an overview of mobile commerce development by examining the enabling technologies, the impact of Mobile commerce on the business world, and the implications to mobile commerce providers.
Proceedings ArticleDOI
On incremental cache coherency schemes in mobile computing environments
TL;DR: This study shows the effectiveness of these algorithms in reducing uplink transmission and average access times and proposes a taxonomy of cache coherency schemes, and studies extended versions of this class of algorithms to further cut down on the work performed by the server.
Proceedings ArticleDOI
An efficient cache maintenance scheme for mobile environment
TL;DR: Analytical and simulation results are presented to show the superiority of the new cache maintenance scheme, called AS, suitable for the wireless mobile environment, which integrates the mobility management scheme of Mobile IP with caches used in the CODA file system.
References
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Journal ArticleDOI
Mobile wireless computing: challenges in data management
Proceedings Article
Sleepers and Workaholics: Caching Strategies in Mobile Environments
Daniel Barbará,Tomasz Imielinski +1 more
TL;DR: In this paper, a taxonomy of different cache invalidation strategies and study the impact of client's disconnection times on their performance is presented, and the authors determine that for the units which are often disconnected (sleepers) the best cache invalidization strategy is based on signatures previously used for efficient file comparison.
Proceedings ArticleDOI
Sleepers and workaholics: caching strategies in mobile environments
Daniel Barbará,Tomasz Imielinski +1 more
TL;DR: A taxonomy of different cache invalidation strategies is proposed and it is determined that for the units which are often disconnected (sleepers) the best cache invalidations strategy is based on signatures previously used for efficient file comparison, and for units which is connected most of the time (workaholics), the best Cache invalidation strategy isbased on the periodic broadcast of changed data items.
Proceedings ArticleDOI
Energy efficient indexing on air
TL;DR: This work describes two methods, (1,m) Indexing and Distributed Indexing, for organizing and accessing broadcast data and demonstrates that the proposed algorithms lead to significant improvement of battery life, while retaining a low access time.
Journal ArticleDOI
Adaptation and mobility in wireless information systems
TL;DR: 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.
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