摘要
针对低功耗自适应分簇(LEACH)路由算法存在节点分布不均匀导致远离Sink节点的簇头能量消耗很大以及簇首选择的问题,提出一种改进的LEACH算法.在簇首选举过程中,通过引入节点剩余能量因素,有效降低了剩余能量过低节点成为簇首的几率,并且在簇首与基站通信过程中,采用多跳路的通信方式,降低节点能量消耗.实验证明,改进后的LEACH算法可有效提高网络的能量均衡性,延长无线传感网络的生存时间.
An improved Low Energy Adaptive Clustering Hierarchy （LEACH） is proposed for decreasing the cluster head node energy consumption which is caused by cluster-head nodes, be- ing far away from sink station of traditional LEACH routing protocol and for selecting the clus- ter-head. It is less likely that the nodes with lower residual energy become cluster-head nodes via using remaining energy of the nodes in selecting cluster-head. In the process of date trans- mission between cluster-head nodes and sink station, multi-hop channel of transmission is a- dopted to reduce node energy consumption. Experiments show that improved LEACH can ef- fectively improve the balance of network and prolong the survival time of wireless sensor net- works （WSN）.
出处
《西安工程大学学报》
CAS
2015年第6期720-723,745,共5页
Journal of Xi’an Polytechnic University
