文献类型：期刊文献

中文题名：连通性覆盖约束的WSN拓扑控制算法

英文题名：Connectivity and Coverage Constrained Topology Control Algorithm for Wireless Sensor Network

作者：吴雪[1];马兴凯[1]

机构：[1]华东理工大学信息科学与工程学院,上海200237

年份：2009

卷号：25

期号：13

起止页码：118

中文期刊名：微计算机信息

外文期刊名：Control & Automation

语种：中文

中文关键词：无线传感器网络;拓扑控制;功率控制;连通性

外文关键词：wireless sensor networks; topology control; power control; connectivity

摘要：本文从概率论角度分析了传感器网络平均节点度和通信半径之间的关系,给出了网络满足连通性覆盖要求时所需的通信半径,在此基础上提出了一种基于本地平均算法LMA(Local Mean Algorithm)的新方案ILMA(Improved LMA)。新方案的实施使得节点采用更低的功率工作,因此形成的网络拓扑的平均节点度大大减小,同时提高了网络的能量利用率。
This paper analyzes the relationship between the network＇s average node degree and communication radius from the view of Probability Theory. It also provides the communication radius required by connectivity and coverage demand. A new algorithm named ILMA based on the classic algorithm LMA and the above theory is proposed, in which the power adjustment strategy of LMA is adopted. The resulting network topology increases the network＇s energy-efficiency and has lower average node degree by adopting lower transmission power.