空间网双指标节点重要性评估

Importance Evaluation of Dual Index Nodes in Space Network

为了提高通信网络中节点重要性评估的准确度和有效性,提出一种同时考虑拓扑与业务影响的评价节点重要性的双指标评估方法。在拓扑因子的确定时,应用计算节点的核度积的方法,一是可知网络的连通程度,二是可以计算出最短路径的增加的部分,从而动态调整网络。业务因子部分是应用接连失效的理论,考虑网络上负载的动态变化。该双指标方法能对令现有多种单指标方法失效的网络进行节点重要性评价,克服了现有各种方法的缺陷。实验分析表明:该方法简单有效。

In order to improve the accuracy and effectiveness of node importance evaluation in the communication network, a dual index method of assessing the importance of nodes is proposed. When determining factors in the topology, the method of computing the kernel of a node is used, first, we can know the connectivity degree of the network, the two is to calculate the increased part of the shortest path, so as to dynamically adjust the network. The service factor is applied to the theory of successive failures, considering the dynamic change of the load on the network. The dual index method can evaluate the node importance of the network which has a plurality of single index method failures, and overcome the defects of the existing methods. Experimental results show that the method is simple and effective.