【摘要】 针对LEACH路由协议随机选取簇头,导致距离基站较远的簇头节点能量开销较大的问题,提出了一种基于距离的改进LEACH路由算法LEACH-DB。LEACH-DB分析无线传感网络中节点与基站相对位置分布,以及两者之间能量开销情况,在原LEACH协议路由算法中引入距离因子φ及其权重指数α,从而改变网络中簇头的位置分布,降低簇头与基站之间的通信开销,网络生存时间得到延长。经过Matlab仿真,该算法有效的延长了网络生存时间。更多还原

【Abstract】 The LEACH-DB routing algorithm aims at solving the problem of huge energy consumption between the far away cluster nodes and the base station,this problem is caused by the cluster nodes election strategy of LEACH routing protocol.LEACH-DB analyses different location distributions and energy consumption situations between nodes in WSN and the base sta tion,introduces the distance factor φ and its weight coefficient α.This improvement changes the comparative location distribu tion of cluster nodes and lowers the communication consumption,then prolongs the network lifetime.By the simulation re searches of Matlab,the LEACH-DB can prolong the lifetime of WSN efficiently.更多还原