RMCC: An Efficient Cooperative Caching Scheme for Mobile Ad-hoc Networks

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Title:	RMCC: An Efficient Cooperative Caching Scheme for Mobile Ad-hoc Networks
Authors:	Chuang, Po-Jen;Yu-Yiu Chen;Hang-Li Chen
Contributors:	淡江大學電機工程學系
Keywords:	Mobile ad-hoc networks (MANETs);cooperative caching schemes;cache hit ratios;access latency;experimental evaluation
Date:	2013-06-01
Issue Date:	2013-07-24 21:30:08 (UTC+8)
Publisher:	Daejon: Science and Engineering Research Support Society
Abstract:	For mobile ad-hoc networks (MANETs), caching data is important and useful. By exercising cache cooperation between mobile nodes, cooperative caching schemes can improve data accessibility and system performance. Seeing that the cache hit ratios tend to degrade due to high node mobility, restricted battery energy and limited wireless bandwidth in a MANET, we introduce a new cooperative caching scheme, the Regionally Maintained Cooperative Caching (RMCC) scheme, to solve the problem. RMCC allows one node in a region to cache a data item while the other nodes in the same region to cache the path to the node when to acquire the same item. Such a design helps generate more cache space and wider cached data variety for nodes in one region, and as a result attains higher cache hit ratios as well as lower data access latency. Experimental evaluation shows that the proposed RMCC outperforms other schemes in terms of cache hit ratios, in-cache ratios and amounts of required file packets.
Relation:	International Journal of Future Generation Communication and Networking 6(3), pp.13-24
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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