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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Proceedings ArticleDOI
Research issues on mobile sensor networks
TL;DR: The communication and data management issues on MWSNs are surveyed and extensible research directions of MW SNs are provided to help in the development of future research directions.
Patent
Intelligent client agent for a hybrid online/offline application
Rafiul Ahad,Pradeep B. Chulliyan +1 more
TL;DR: In this article, an intelligent client agent and a method for using the client agent to operate a hybrid online/offline client application is presented, where a mobile client device is configured with a client agent comprising a dispatcher for receiving and responding to page requests from a client browser.
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An adaptive AVI-based cache invalidation scheme for mobile computing systems
TL;DR: Performance studies show that the IAVI scheme can significantly reduce the mean response time and invalidation report size under various system parameters.
Journal ArticleDOI
Approaches for broadcasting temporal data in mobile computing systems
TL;DR: The notion of absolute validity interval (AVI) is introduced to capture the temporal constraints of the data items, a temporal data model is formulated and both static and dynamic approaches to select data items based on their access frequencies as well as their AVI are examined.
Journal ArticleDOI
Scalable cache invalidation algorithms for mobile data access
TL;DR: The study shows that the proposed algorithms are effective for a large number of cached data items with low update rates and illustrates that the algorithms ran be used with other complementary techniques to address the problem of cache invalidation for data itemsWith varied update and access rates.
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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