Efficient Schemes for Cache Consistency Maintenance in a Mobile Database System 


Vol. 8,  No. 3, pp. 221-232, Jun.  2001
10.3745/KIPSTD.2001.8.3.221


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  Abstract

Due to rapid advance of wireless communication technology, demand on data services in mobile computing environment is gradually increasing. Caching at a mobile client could reduce bandwidth consumption and query response time, and yet a mobile client must maintain cache consistency. It could be efficient for the server to broadcast a periodic cache invalidation report for cache consistency in a cell. In case that long period of disconnection prevents a mobile client from checking validity of its cache based solely on the invalidation report received, the mobile client could request the server to check cache validity. In doing so, some schemes may be more efficient than others depending on the number of available channels and the mobile clients involved. In this paper, we propose new cache consistency schemes, efficient especially (1) when channel capacity is enough to deal with the mobile clients involved or (2) when that is not the case, and evaluate their performance.

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[IEEE Style]

S. M. Lim and H. C. Kang, "Efficient Schemes for Cache Consistency Maintenance in a Mobile Database System," The KIPS Transactions:PartD, vol. 8, no. 3, pp. 221-232, 2001. DOI: 10.3745/KIPSTD.2001.8.3.221.

[ACM Style]

Sang Min Lim and Hyun Chul Kang. 2001. Efficient Schemes for Cache Consistency Maintenance in a Mobile Database System. The KIPS Transactions:PartD, 8, 3, (2001), 221-232. DOI: 10.3745/KIPSTD.2001.8.3.221.

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