一种新的基于非结构化P2P网络的语义覆盖网络

A Novel Semantic Overlay Network Based on Unstructured P2P Network

在经典的语义覆盖网络中,所有节点都处于对等地位,没有考虑节点间共享资源数量及相对位置的差异,这使网络中节点分组信息的维护与资源搜索成本较高。文中分析了节点间共享资源数量及相对位置的差异对语义覆盖网络中节点分组信息的维护与资源搜索代价的影响,并在此基础上提出了一种新的基于非结构化P2P网络的语义覆盖网络。该结构利用P2P网络的拓扑匹配与区分索引技术有效减少了经典语义覆盖网络中节点分组信息的维护及资源搜索代价,提升了网络的整体性能。

In the classical semantic overlay network, all the nodes are regarded as the same, and the number of mak aria cla shared resources between the nodes and the differences of their relative locations are not c ing lyzi ssif the resource classification maintenance and search costs in such network very high. In ng ica onsidered, thus this paper, by number of shared resources between the nodes and the network distance between them on the resource tion maintenance and search costs in semantic overlay network, a novel semantic overlay network based on unstructured P2P network is proposed. In this proposed network, by P2P network topology matching method and limited use of resource classification, the resource classification maintenance and search costs in the classical semantic overlay network could be greatly reduced, and thus the network performance be improved.