Proxy-based index caching for content-addres sable networks

In this paper, we propose a caching technique for Content-Addressable Network (CAN). CAN provides a mechanism that could retrieve objects distributed over a P2P network by maintaining indices to those objects in a fully decentralized manner We introduce index caching to the CAN architecture for fast index retrieval and propose an efficient caching technique. The key point of the proposed technique is to achieve high cache hit ratio by exploiting access locality among participating hosts based on the notion of proxy caching techniques. By the result of simulations, we conclude that it can improve the response time of index retrieval by 30% compared with conventional techniques.