Proceedings ArticleDOI
Energy-efficient caching for wireless mobile computing
Kung-Lung Wu,Philip S. Yu,Ming-Syan Chen +2 more
- pp 336-343
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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
Organization of invalidation reports for energy-efficient cache invalidation in mobile environments
TL;DR: In this article, the authors examined the Bit-Sequences method and study different organizations of the invalidation report to facilitate clients to selectively tune to the portion of the report that are of interest to them.
Proceedings ArticleDOI
Effective Web caching for GPRS networks
TL;DR: This paper employs a known Web caching scheme, CNP, and extends its support of Web access for wireline networks into wireless GPRS environments and presents how to incorporate CNP to deal with the Web proxy placement problem for G PRS.
Journal ArticleDOI
Dynamic cache invalidation scheme for wireless mobile environments
TL;DR: The results demonstrate that it can substantially improve mobile caching by reducing the communication bandwidth for query processing and compared to previous IR-based schemes, AEECIS can significantly improve the bandwidth consumption and the number of uplink requests.
Proceedings ArticleDOI
On cache invalidation for internet-based vehicular ad hoc networks
TL;DR: A novel cache invalidation algorithm that takes advantage of the underlying location management scheme to reduce the number of broadcast operations and the corresponding query delay and thus is proven to be a viable solution for IVANETs.
Journal ArticleDOI
Energy saving strategies for cooperative cache replacement in mobile ad hoc networks
TL;DR: Simulations show that the proposed policies can significantly reduce energy consumption and access latency when compared to other replacement policies, and are presented to solve the Energy-efficient COordinated cache Replacement Problem (ECORP) as a 0-1 knapsack problem.
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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