Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/39880
Title: Distributed group-based cooperative caching in mobile broadcast environment
Authors: Chow, CY
Leong, HV 
Chan, A 
Keywords: Cooperative caching
Mobile computing
Mobile data broadcast
Peer groups
Peer-to-peer computing
Issue Date: 2005
Source: MDM '05 Proceedings of the 6th International Conference on Mobile Data Management, Ayia Napa, Cyprus, 9-13 May, 2005, p. 97-106 How to cite?
Abstract: Caching is a key technique for improving data retrieval performance of mobile clients. The emergence of state-of-the-art peer-to-peer communication technologies now brings to reality what we call "cooperative caching" in which mobile clients not only can retrieve data items from mobile support stations, but also from the cache in their peers, thereby inducing a new dimension for mobile data caching. In this paper, we propose a distributed group-based cooperative caching scheme, in which we define the concept of a tightly-coupled group (TCG) by capturing the data affinity of individual peers and their mobility patterns, in a mobile broadcast environment. A distributed stable peer discovery protocol is proposed for discovering all TCGs dynamically. In addition, a cache signature scheme is adopted to provide hints for the mobile clients to determine whether their required data items are cached by their neighboring peers, and to perform cooperative cache replacement to increase overall data availability. Simulation studies are conducted to evaluate the effectiveness of our distributed group-based cooperative caching scheme.
URI: http://hdl.handle.net/10397/39880
ISBN: 1-59593-041-8
DOI: 10.1145/1071246.1071261
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