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Abstract

The problem of cache sharing for supporting data access in mobile ad hoc networks is studied in this paper. The key to this problem is to discover a requested data item in an efficient manner. In the paper, we propose two caching protocols, IXP and DPIP, which distinguish themselves from the existing ones in that they fully exploit in-zone broadcasts to facilitate cache sharing operation. In particular, the DPIP protocol offers an implicit index push property, which is highly useful for enhancing cache hit ratio in the neighborhood of a data requester node. Moreover, our protocols also exploit the broadcasts to facilitate the design of a simple but efficient count-based cache replacement scheme. Performance study shows that the proposed protocols can significantly improve the performance of data access in a mobile ad hoc network.


refered by : Issue Date: March 2009
Volume: 8 Issue:3
On page(s): 384 - 397
ISSN: 1536-1233
INSPEC Accession Number: 10401552
Digital Object Identifier: 10.1109/TMC.2008.127
Date of Publication: 12 September 2008
Date of Current Version: 20 January 2009
Sponsored by: IEEE Computer Society