基于概率覆盖模型的无线传感器网络密度控制算法  

A Density Control Algorithm Based on Probability Coverage Model in Wireless Sensor Networks

作　　者：柳立峰[1] 邹仕洪[1] 张雷[1] 程时端[1] 

机构地区：[1]北京邮电大学网络与交换国家重点实验室,北京100876

出　　处：《北京邮电大学学报》2005年第4期14-17,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(9020400360402012)

摘　　要：密度控制是一种常用的提高大规模无线传感器网络生命周期的方法,目前的密度控制算法大多基于0～1覆盖模型,而在实际的应用环境中概率覆盖模型能够更准确地定义网络覆盖能力. 所提出的一种基于概率覆盖模型的密度控制算法,能够在保证足够的网络覆盖能力的前提下,关闭掉冗余节点,减少网络的总能量消耗.Density control is the common way to improve the network lifetime of large scale wireless sensor network. Many density control algorithms are based on 0- 1 coverage model, whereas probability coverage model defines network coverage ability more accurately than 0- 1 coverage model in real applications. A density control algorithm based on probability coverage model was presented, which can turn off redundant sensor nodes to reduce total network energy consumption and ensure adequate network coverage ability.

关 键 词：无线传感器网络 密度控制 概率覆盖模型 覆盖概率 

分 类 号：TN929.5[电子电信—通信与信息系统]