基于域的P2P信任模型设计

P2P Credit Model Design Based on Domain

通过幂规律的引入,充分利用P2P网络存在少数节点度数较大的这一属性来架构网络拓扑结构和设计P2P信任模型。在此基础上的信任模型,通过把信任分为域内信任和域间信任先后处理,可以有效的减少网络时延和网络带宽。网络监测表明,度数较大节点在性能、稳定性、对系统贡献方面都有明显优势。因而通过这些节点的利用,可以使信任模型在查找路由、查询时间、模型代价小、负载平衡等方面具有显著改善,对于构建和谐的P2P运行环境具有重要的应用价值。

Imported the Power-law,framed the network topo-structure and designed credit model by taking full advantage of the inhere property that there are minority nodes have biggish degrees in P2P network.Based on the Power-law,the credit is differentiated as the inside domain credit and outside domain credit,in this way can reduce the delay of the network and the bandwidth.Inspecting the network indicates that the node has biggish degrees also has the advantage of the capability,the stability and the contribution to the system.Thus by using there nodes,the credit model will be improved in the routing,the inquire time,the less cost of the model,load balance and so on.This model has important application value for establishing a harmonious circumstance of the P2P.