无线传感器网络簇级拓扑演化模型研究

Cluster-level Topology Evolution of Wireless Sensor Network Research Based on Scale-free Network

复杂网络理论研究表明,复杂系统的容错能力不仅仅存在于具有冗余组件的系统之中;而且也同样存在于具有无标度(scale-free)特征的网络之中;文章借助于复杂网络理论和偏好依附机制提出一种无线传感器网络簇级拓扑演化模型;拓扑动态分析表明,该模型能够很好地体现无线传感器簇间的拓扑生长过程,由该模型演化成的无线网络拓扑具有无标度网络的性质,所以该拓扑模型具有很强的容错性。

Complex networks theory has demonstrated that scale--free networks have good fault--tolerance ability, acluster--level evol- ving sensor network model based on complex networks theory and preferential attachment regime is proposed. The analysis of growth dynamic demonstrates that such network exhibits a power--law distribution of node degree. Therefore, the proposed topology model has a good fault-- tolerance ability.