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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Modified Energy Efficient Cache Invalidation Algorithm in Mobile Environment
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TL;DR: A new technique called Modified Energy Efficient Cache Invalidation Algorithm (MEECIA) is presented especially to reduce the uplink bandwidth consumption in the wireless ad-hoc network, by choosing following modes: Slow, Fast, Super-fast.
Proceedings ArticleDOI
IAVI-UIR: an efficient caching scheme for mobile computing systems
TL;DR: A hybrid cache invalidation scheme based on self-invalidation and replicated updated invalidation reports is proposed and demonstrated to be superior to existing schemes.
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TL;DR: The semantic prefetching strategy, which utilizes users' interests, relating to a users' current location, is represented and performance results show that this method is superior when compared with traditional semantic cache schemes.
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Optimistic concurrency control based on timestamp interval for broadcast environment
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Proceedings ArticleDOI
An efficient cache invalidation scheme for mobile wireless environments
TL;DR: A simulation-based analysis on the performance of the suggesting algorithms shows that the local processing algorithms of read-only transaction based on asynchronous cache invalidation scheme get better response time than the algorithm based on synchronous cache invalidations.
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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