无线传感器网络中的聚类协议综述

无线传感器网络中的聚类是将传感器网络划分成多个簇的过程,可用于延长网络生存期.每个聚类中都存在一个称为聚类头的节点.聚类头可由同一聚类中的节点选出,也可由网络设计人员预先指定.首先给出了无线传感器网络中聚类协议的分类特性;接着对已有的聚类协议从聚类头选择方式上进行了分类,并对已有的聚类协议从基本特性、聚类属性和聚类头选择方式3个方面进行了比较;最后总结了已有聚类协议研究的不足之处,并指出了未来有待研究的关键问题.

Survey on Clustering Protocols in Wireless Sensor Network

Clustering in wireless sensor network is a process to divide the network into a number of clusters,which can extend the lifespan of network.Each cluster has a node called cluster head,which can be elected by the nodes in the same cluster or pre-assigned by the network designer.Firstly the classification characteristics of clustering protocols in wireless sensor network were given,and then current clustering protocols were classified by the selection methods of cluster head.After that current clustering protocols were compared from three aspects:basic characteristics,clustering attributes and selection methods of cluster head.Lastly the shortcomings of current research on clustering protocols were summarized and the key problems of clustering protocols which need to be solved in the future were pointed out.