Proceedings ArticleDOI
Consistency of cooperative caching in mobile peer-to-peer systems over MANET
Jiannong Cao,Yang Zhang,Li Xie,Guohong Cao +3 more
- Vol. 7, pp 573-579
TLDR
Simulation results demonstrated that RPCC outperforms the traditional push and pull based strategies by taking their advantages while at the same time avoiding their weakness.Abstract:
Caching consistency is an important issue for cooperative caching in mobile environments but has not been adequately addressed for mobile ad hoc networks (MANETs). In this paper, we proposed a novel approach, called RPCC (relay peer-based caching consistency), to addressing the caching consistency issues in a MANET. With the help of relay peers between the source host and cache hosts, both push-based and pull-based strategies can be employed, which helps to reduce the communication overhead and query latency. The source host pushes the data to relay peers and cache hosts pull the data from relay peers. These operations can be performed asynchronously and simultaneously. Moreover, the proposed RPCC approach is flexible in that it can deal with different consistency requirements adaptively. Simulation results demonstrated that RPCC outperforms the traditional push and pull based strategies by taking their advantages while at the same time avoiding their weakness.read more
Citations
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Journal ArticleDOI
Data Consistency for Cooperative Caching in Mobile Environments
TL;DR: A proposed relay-peer-based cache consistency protocol offers a generic and flexible method for carrying out cache invalidation in mobile wireless environments.
Journal ArticleDOI
DCIM: Distributed Cache Invalidation Method for Maintaining Cache Consistency in Wireless Mobile Networks
Kassem Fawaz,Hassan Artail +1 more
TL;DR: The consistency ratio, delay, and overhead traffic are reported versus several variables, where DCIM showed to be superior when compared to the other systems, where it was also implemented using ns2, and compared against client-based and server-based schemes to assess its performance experimentally.
Proceedings ArticleDOI
Achieving Flexible Cache Consistency for Pervasive Internet Access
TL;DR: This paper proposes a general consistency model called probabilistic delta consistency (PDC), which covers all existing consistency models including DC and PC, and integrates the flexibility granted by bothDC and PC and proposes a consistency maintenance algorithm, called flexible combination of push and pull (FCPP), which can meet users' consistency requirements.
Journal ArticleDOI
Flexible Cache Consistency Maintenance over Wireless Ad Hoc Networks
TL;DR: A general consistency model called Probabilistic Delta Consistency (PDC) is proposed, which integrates the flexibility granted by existing consistency models, covering them as special cases, and the Flexible Combination of Push and Pull (FCPP) algorithm which satisfies user-specified consistency requirements under the PDC model.
Journal ArticleDOI
SSUM: Smart Server Update Mechanism for Maintaining Cache Consistency in Mobile Environments
Khaleel Mershad,Hassan Artail +1 more
TL;DR: Estimates for the average response time of node requests and the average node bandwidth utilization are derived in order to determine the gains and costs of employing a cache consistency scheme based on a previously proposed architecture for caching database data in MANETs.
References
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Mobile Ad hoc Networking (MANET): Routing Protocol Performance Issues and Evaluation Considerations
S. Corson,Joseph P. Macker +1 more
TL;DR: The characteristics of Mobile Ad hoc Networks (MANETs), and their idiosyncrasies with respect to traditional, hardwired packet networks, are described, with an emphasis on routing performance evaluation considerations.
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 Article
World-wide web cache consistency
James S. Gwertzman,Margo Seltzer +1 more
TL;DR: Using trace-driven simulation, it is shown that a weak cache consistency protocol (the one used in the Alex ftp cache) reduces network bandwidth consumption and server load more than either time-to-live fields or an invalidation protocol and can be tuned to return stale data less than 5% of the time.
Proceedings ArticleDOI
Maintaining strong cache consistency in the World-Wide Web
Chenjie Liu,Pei Cao +1 more
TL;DR: It is shown that, contrary to popular belief, strong cache consistency can be maintained for the Web with little or no extra cost than the current weak consistency approaches, and it should be maintained using an invalidation based protocol.