An unstructured P2P network model for efficient resource discovery

Efficient resource discovery is a challenge aspect in P2P applications. The topological properties of P2P overlay networks are one of the important factors that dominate the performance of resource discovery. In this paper, we present an efficient P2P network model for resource discovery. Firstly, location of the underlying physical network is taken into account during the constructions of P2P networks aiming to alleviate the topoloty mismatch problem between the P2P overlay nerwork and the phisical nerwork. Furthermore, the nodes with similar resource are clustered together which can increase the chances of finding matching resources quickly. Comparing the performance of this model with other overlay networks, the results show the model of our claims can significantly shorten the latency of the searching process and reduce the searching overhead.