基于拓扑关键点保护的P2P网络拓扑优化

网络连通性是对P2P网络拓扑结构进行优化的前提.为了确保P2P网络中每一个节点的相互连通,增强网络拓扑的抗毁性,应以分布式的方法有效地检测到拓扑关键点并合理地将其消除,以从本质上增强网络应对分割的抵抗力,同时显著地提高系统的容错性.对非结构化P2P网络的CAM拓扑关键点发现算法进行研究分析,提出ECAM拓扑关键点发现算...

Optimization of Peer-to-Peer Overlay Network Topology Based on Topologically-critical Nodes' Protection

Connectivity of network is the premise to optimize the topology of P2P network. In order to ensure that each node has connected to each other in the P2P network and enhance the survivability of the network topology, an effective distributed method was carried out in the unstructured P2P network which detects the topologically-critical nodes and eliminates them appropriately, it will strengthen the overlay network to defeat the partition and improve the system' s fault tolerance significantly. I}his paper proposed an SCAM topologically-critical nodes discovery algorithm, which improves the CAM The theoretical analysis and simulation results show that, the SCAM reduces the network consumplion and improves the discovery efficiency significantly by maintaining the high accuracy at the same level.