考虑整体消耗代价的无线传感器网络分簇算法  

Clustering Algorithm for Wireless Sensor Network Considering the Total Network Cost

作　　者：于立娟[1] 唐智灵[2] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]桂林电子科技大学电子工程学院,广西桂林541004

出　　处：《现代电子技术》2008年第18期184-187,共4页Modern Electronics Technique

基　　金：广西自然科学基金资助项目(桂科自0447090);广西科学研究与技术开发计划资助项目(桂科基0731019)

摘　　要：在LEACH协议的基础上,研究一种无线传感器网络分簇算法,采用高级节点作为固定簇头替代LEACH中的随机簇头选择策略,推导出最优簇头节点数目即所需高级节点数的计算公式及各类节点所需能量的表达式,并从网络整体消耗代价的角度出发,通过仿真对网络性能进行分析评价。结果表明,采用一定量的高级节点作为固定簇头,当其节点硬件代价和电池能量代价之比a1/b超过一定值时,新算法的整体网络代价明显低于LEACH。In this paper,a kind of clustering algorithm is studied on the basis of LEACH. It uses some advanced nodes as fixed cluster heads, which takes place of the scheme of selecting cluster head randomly in LEACH. Then the, formulation and expressions of optimum cluster head and initial energy of these two types nodes are deduced. Finally, the network performance is evaluated from the overall network cost point of view, the simulation and evaluation results show that the Total network costs of the new algorithm is obviously lower than LEACH. when the ratio of hardware cost and battery cost a1/b is above a given value.

关 键 词：无线传感器网络 LEACH 高级节点 簇头 整体网络代价 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]