Research On The Trimmed-hypercube P2P Resources Network Construction Method

Peer to Peer computing networks(P2P)is one of the hottest fields in the Internet technology research.Based on the "Public Electronic Reading Room Building Program" as background,this paper analyzes the needs,characteristics,constraints and problems of the cultural information resource network,leading to the conclusion that the basic support of Resource Network is the overlay network under the Internet environment.Hence,it is taking an in-depth study on the key technologies and developing trends of the P2 P Overlay Network,analyzing and comparing the unstructured and structured P2 P network computing model,object search method,typical applications and defects that lays the foundation for the proposed construction methods of constructed topologic P2 P Overlay Network of the generalized TH(generalized Trimmed-HyperCube).The paper attempts to construct a common decentralized network layer for carrying resource placement,positioning and other tasks.In order to obtain a distributed shared mode Internet applications,presents a variant mode that is based on hypercube structure – the TH hypercube topology model,thus forming the generalized trimming tH hypercube topology model;in the accordance with the tH model,it realizes the structured P2 P Overlay Network by any numbers of M(M? network size N)nodes,therefore making the tH network search efficiency less than the average O(LogN).The research contributes to the structured overlay network connectivity that is not restricted by the hypercube node with the redundancy limit of n-1 limits,where n = LogN;conducting simulation experiments,validating the system evaluation indexes of the connectivity,searching hit rates,routing efficiency of the tH network and so on ensures that the experimental results meet the design requirements.