无线传感器网络的节点分布均匀性分析  

Analysis of distribution uniformity of nodes in wireless sensor networks

作　　者：胡风华[1] 李敬兆[1] 

机构地区：[1]安徽理工大学计算机科学与工程学院,安徽淮南232001

出　　处：《现代电子技术》2013年第5期41-43,47,共4页Modern Electronics Technique

基　　金：国家自然科学基金(61170060);安徽省自然科学基金(11040606M135);安徽省高等学校自然科学基金重点项目(KJ2011A083);淮南市科技计划项目(2011A07904)

摘　　要：针对无线传感器网络节点分布均匀性直接影响节点能耗,对整个网络生命期长短有决定作用的问题,通过模拟实验,在均匀设计理论的基础上,以最理想布点为标准,采用最大最小空穴半径均匀性度量方法,用密集性偏差稀疏性偏差评价整个网络内节点分布的均匀性,分析均匀性对节点能耗和整个网络生命周期的影响,得出结论:无线传感器网络节点分布越均匀,相同覆盖条件下网络能耗越少。The fact that distribution uniformity of nodes in wireless sensor networks directly affects node energy consumption determines the life cycle of the whole network. On the basis of uniform design theory, the simulation experiment adopts a series of parameters which include compression discrepancy, sparseness discrepancy, self discrepancy, maximum cavity radius and mini- mum cavity radius to evaluate the nodes distribution uniform performance. The method can measure the distribution uniformity of nodes in wireless sensor networks under the condition that the nodes are deployed randomly. The impact of uniformity on node ener- gy consumption and the life cycle of the entire wireless sensor network are analyzed. The conclusion is drawn that distribution of nodes in wireless sensor network is more uniform, network energy consumption under the conditions of the same covera~,e is less.

关 键 词：无线传感器网络 节点 均匀分布 随机分布 

分 类 号：TN711.34[电子电信—电路与系统]