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
Flexible data dissemination strategy for effective cache consistency in mobile wireless communication networks
TL;DR: In this paper, a multicast based approach is proposed to maintain cache consistency in mobile environment using AVI as the cache invalidation scheme, where the client queries the DTA (Dynamic Transmitting Agent) for latest updates and the query is answered.
Dissertation
Utility-based resource-aware framework for information caching and sharing in mobile and distributed systems
TL;DR: A utility based resource aware framework to enhance ubiquitous information availability to mobile users through data caching and peer-to-peer sharing and results show that the framework can efficiently provide ubiquitous information services in mobile and distributed environments.
Proceedings ArticleDOI
Energy-efficient caching strategy using probability-based data request for mobile environments
TL;DR: This paper approaches the IR-based caching strategy in view of the energy efficiency and proposes the energy-efficient caching strategy, which has a great effect on the conservation of the battery capacity of mobile terminals and the uplink bandwidth.
Disseminating Updates to Mobile Clients
TL;DR: This paper addresses the problem of propagating data updates to a large number of mobile clients by proposing a hybrid approach that dynamically modifies the contents and the structure of the air-cache according to the number and the (dis)connection habits of the clients.
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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