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A Novel Cooperative Caching Scheme for Unstructured Peer-to-Peer Networks

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3 Author(s)
Tomonori Mori ; Grad. Sch. of Inf., Kyoto Univ., Kyoto ; Takuya Asaka ; Tatsuro Takahashi

Unstructured peer-to-peer (P2P) networks have power-law topology, and the number of content requests also follows power-law distributions. These properties cause two problems: the high-load of high-degree peers and the quick deletion of rarely requested contents. We propose a new caching scheme that replaces the cache on the basis of the number of request messages per unit of time. It significantly reduces the load of high-degree peers and improves the hit rate. Moreover, we use a simulation to show the effectivity of our proposed method.

Published in:

2009 6th IEEE Consumer Communications and Networking Conference

Date of Conference:

10-13 Jan. 2009