边界节点对无线传感器网络连通性的影响  

Effects of Border Nodes on the Connectivity of Wireless Sensor Networks

作　　者：张强[1] 孙雨耕[1] 刘丽萍[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《传感技术学报》2011年第5期737-741,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(60702037)

摘　　要：无线传感器网络的连通性是确保节点成功组网的基础,相对于内部节点,边界节点对无线传感器网络的连通性有着更大的影响。本文以节点的有效通讯面积为基础,通过理论推导,分析了边界节点的连通性和网络的整体连通性,而后通过仿真研究,分析了存在边界节点与消除边界效应后的网络连通度分布、连通度期望和网络是k点连通的概率,从而说明了边界节点对无线传感器网络连通性的影响。Wireless Sensor Network connectivity is the basis for the nodes to form a network successfully.Compared with inner nodes,border nodes make more effects on the connectivity of a Wireless Sensor Network.Based on the effective communication area of a node,the connectivity of border nodes and network were analyzed through theoretical derivation.Then,through simulation method,the distribution of network connectivity,the expectation of network connectivity and the probability of a k-connected network were discussed in the situation of existing border nodes and eliminating border effects.Finally,the effects of border nodes on the connectivity of Wireless Sensor Networks were summarized.

关 键 词：无线传感器网络 边界节点 连通度 边界效应 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]