空间信息网拓扑故障检测与诊断算法

ccording to the characteristics of space information networks,, a fault detection and diagnosis algorithm is presented in this paper. Some nodes are selected to be the selection nodes that cooperate with each other to detect faults in the network. The importance of nodes and links are evaluated in order to avoid severe damages caused by important elements. Based on the selected detection nodes and the importance evaluation mechanism, faults are positioned and diagnosed. The performance of the algorithm is evaluated via NS2. Simulation results indicate the proposed algorithm is suitable to space information networks.