LEACH协议中的最佳建簇概率  

Optimum Probability of Clustering Establishing in LEACH Protocol

作　　者：张瑞华[1] 高蕊[2] 范春荣 

机构地区：[1]西安航空技术高等专科学校,陕西西安710077 [2]宝鸡文理学院,陕西宝鸡721007 [3]西北机器有限公司设计研究所,陕西西安710119

出　　处：《现代电子技术》2010年第21期28-29,34,共3页Modern Electronics Technique

摘　　要：无线传感器网络中,传感器节点是通过携带能量有限的电池供电,因此如何有效利用能量,延长节点的生命周期是无线传感器网络首要研究的问题。为了达到降低网络能源消耗的目的,本文在第一顺序无线电模型的基础上利用能量消耗的关系得到了典型分簇路由协议LEACH的最佳建簇概率。研究结果表明,当分簇数目小于最佳建簇数目时,传感器网络每轮消耗的总能量就会以指数方式增加,说明确立最佳建簇数目可以降低网络能耗,从而提高无线传感器网络的整体生存时间。Since the power of the node is supplied by battery with finite energy,how to make use of energy effectively and extend the life period of the nodes is the key issue in the research of wireless sensor network.The optimum probability of clustering establishing for the typical clustering protocol LEACH is achieved by applying the relationship of energy dissipation based on the first order radio model to reduce energy consumption by the network.It shows that the energy consumed by the wireless sensor network in every cycle can increase exponentially when the number of clustering is lower than the number of the optimum clustering establishing,which means that the determination of optimum number of clustering establishing can reduce its energy consumption and improve the general life space of the wireless network.

关 键 词：无线传感器网络 LEACH 簇 能量消耗 

分 类 号：TN[电子电信]