一种基于模糊决策的安全簇头选择算法  

A Security Cluster-head Selection Algorithm Based on Fuzzy Decision

作　　者：罗忠[1] 冉全[2] 

机构地区：[1]湖北第二师范学院计算机学院,武汉430205 [2]武汉工程大学计算机科学与工程学院,武汉430073

出　　处：《内蒙古大学学报（自然科学版）》2014年第2期208-213,共6页Journal of Inner Mongolia University：Natural Science Edition

基　　金：湖北省自然科学基金(2011CDB228);基础教育信息技术服务湖北省协同创新中心项目

摘　　要：采用分簇管理的无线传感器网络,能够显著地节省能量.簇头在数据的汇总、融合、转发过程中起到关键作用,但是一旦簇头被俘,存储的密钥信息泄露,这将影响整个簇的安全通信.为有效延长网络寿命和可信簇头选举,本文设计了一种基于模糊决策的簇头选择算法,以剩余能量、信任值、向心度和共享密钥数作为安全性评估的关键指标.实验结果表明,通过模糊决策方法选取簇头能均衡能耗,提高网络生命周期并能阻止恶意节点成为簇头.Clustering is a method to make the consumed energy efficient in wireless sensor net- works,and the cluster head plays a key role in the process of data aggregation,fusion and forward- ing. Once the cluster head is captured, it will effect the communication security of the whole cluster. In order to prolong the network lifetime efficiently and increase the possibility of trusted nodes be- ing cluster-head in the process of selection, a cluster head selection algorithm based on fuzzy decision is proposed. The residual energy,node centrality, true value and shared key number are chosen as the crucial factors of security evaluation. The experimental results show that vsing the fuzzy decision method to select cluster head can balance energy consumption and ensure the communication security.

关 键 词：无线传感器网络 分簇 模糊决策 安全 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]