A Correlation-Based Clustering Hierarchical P2P Network Model

In this paper, a correlation-based clustering hierarchical P2P network model is proposed,which overcomes the problems of poor scalability and low search efficiency in unstructured P2P networks.This model devides the whole unstructured P2P network into clusters formed by a number of nodes through correlation.Each cluster elects a master node to be responsible for managing the entire cluster.The whole network is divided into 2 layers.The upper layer is a structured network consisting of the master nodes of each cluster,while the lower layer is an unstructured network consisting of client nodes of a cluster. the superiority of performance in the query success rate and query delay is verified by simulating.