Research On Key Technologies Of Unstructured Peer-to-Peer Network

Peer-to-peer Network has already broken traditional client/server mode, let all members has the equal performance, don't distinguish between client and server. It is this equivalence work mode, which has greatly enhanced the network work efficiency, network bandwidth is also effectively use.This paper analyzed the major search algorithm and routing method research of peer-to-peer network, of which routing algorithm and the dynamic node algorithm are one of hotspots and difficult problem of unstructured currently.Since unstructured peer-to-peer network using flooding method, the efficiency is low, a deep research on peer-to-peer network based on interest group, inspired by small world theoretical models, using clustering methods will have similar interests be built, establishing a direct connection nodes that constitutes a subnet routing in interest sub-net, thus effectively subnet avoids routing radio diffusion. Improve the efficiency of the initial route. Preliminary simulation experiments prove the efficiency of this algorithm.According to the dynamic and heterogeneous of network. Key research on unstructured peer-to-peer network because of their frequently switching nodes information brings the network dynamic,designed a kind of adaptive algorithm,selective update routing updates thus can be reduced because of the cost, and bring routing will also be eliminated part of poor ordinary nodes, it also improves the nodes in the network performance. Let super nodes of unstructured peer-to-peer network have high connection degrees,so as to improve the stability of the network.