卫星时变拓扑网络节点重要度评估方法  

Evaluation method for time-varying satellite topology network node importance

作　　者：朱林[1] 方胜良[1] 胡卿[2] 骆盛[1] 樊甫华[1] 

机构地区：[1]电子工程学院光航系,安徽合肥230037 [2]中国北方电子设备研究所,北京100083

出　　处：《系统工程与电子技术》2017年第6期1274-1279,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(61171170);全军军事学研究生课题(2015JY254)资助课题

摘　　要：针对卫星网络拓扑结构的时变特征,通过构建时变拓扑图序列模型,将卫星时变拓扑网络分解为一系列具有稳定状态的拓扑图结构。综合考虑节点在网络中的全局性影响和局部性影响,以节点介数、节点紧密度和节点距离的重要度贡献为度量参数,提出了稳态卫星网络节点重要度评估方法,设计了卫星时变网络节点重要度评估算法,通过典型实例验证了算法的准确性和有效性。实验结果表明,该方法能够有效地区分卫星时变网络节点重要度差异,准确评价卫星节点对卫星网络资源的控制能力。Considering the representative time-varying feature of topology structure in satellite network, through building a time-varying topology sequence model, the time-varying satellite topology network is decomposed into a series of steady-state topology structure. Considering the influence of global importance and local importance, an evaluation method for node importance of steady-state satellite network is proposed by taking the node betweenness, node closeness and node distance importance contribution as measurement parameters. An evaluation algorithm for time-varying satellite topology network node importance is proposed. A representative example is used to validate the accuracy and validity of the algorithm. The experiment results demonstrate that the method distinguishes node importance of time-varying satellite topology network effectively, and evaluates the controlling force of the satellite node accurately.

关 键 词：节点重要度 卫星网络 重要度贡献 复杂网络 

分 类 号：TN915[电子电信—通信与信息系统] N94[电子电信—信息与通信工程]