摘要
针对经典LEACH路由协议选取簇头节点数量的随机性和分布不均匀性,提出了一种改进型的LEACH算法。通过考虑簇内节点的主要能量消耗以及引入节点剩余能量、节点消耗能量速度、网络平均剩余能量和网络平均消耗能量速度四个参数,以便合理地选择簇头数目和簇头节点,从而有效地降低能量消耗,延长网络生命周期。仿真结果表明,改进后的算法在一定程度上实现了簇头节点的能耗均衡,网络能耗降低了14.7%,网络生命周期延长了17.3%。
Aiming at the randomness and uneven distribution of cluster head nodes selection by using classical LEACH, the improved LEACH algorithm is proposed. Considering the primary energy consumption of the nodes in the cluster~ and introducing four of the parameters, i. e. , node remaining energy, node energy consumption speed, network average remaining energy and network average energy consumption speed, the numbers of cluster heads and cluster nodes are selected more reasonably~ thus effectively reduces energy consumption and prolongs the network life cycle. The results of simulation show that the improved algorithm implements energy consumption equalization in certain degree, the network energy consumption reduces 14.7%, and the network life cycle extends 17.3%.
出处
《自动化仪表》
CAS
北大核心
2014年第1期51-54,共4页
Process Automation Instrumentation
基金
吉林省教育厅"十一五"科学技术研究基金资助项目(编号:吉教科合字[2010]第76号)
关键词
无线传感器网络
路由协议
数据融合
能耗均衡
簇头选取
Wireless sensor network （ WSN } Routing protocol Data fusion Energy consumption equalization Cluster head selection
