Resource Search in Unstructured Peer-to-Peer System Based on Multiple-Tree Overlay Structure

摘要

We propose a multiple-tree overlay structure for resource discovery in unstructured P2P systems. Peers that havesimilar interests or hold similar type of resources will be groupedinto a tree-like cluster. We exploit the heterogeneity of peers ineach cluster by connecting peers with more capacities closer to theroot of the tree. The capacity of a peer can be defined in differentways (e.g. higher network bandwidth, larger disk space, more dataitems of a certain type etc.) according to different needs of users orapplications.