摘要
在无线传感器网络中,节点能耗直接影响了网络的生命周期,设计高效节能的路由协议成为一个重要问题。在LEACH算法的基础上,提出一种节点能耗均衡的均匀分簇算法(EBEC)。通过利用分割线对网络均匀分簇的思想来优化簇头节点的位置,再利用定时器触发机制竞争出最优簇头,避免了簇头的随机选举;最后,采用簇头与基站多跳通信的方式,有效降低了节点能耗。仿真结果表明,与LEACH协议相比,改进算法能减少网络能耗,延长网络生存周期。
How to design energy-efficient routing protocol has become an important problem as the node energy consumption which directly affects the network lifetime in the wireless network. Based on LEACH protocol,this paper proposes an EBEC,an even clustering algorithm with balanced node energy consumption. The location of cluster head is optimized by using split line. Then the finally cluster heads are competed based on timer trigger mechanism. Finally,cluster-head adopts multi-hop mode to communicate with base station which reduces the node energy consumption. Simulation result shows that,comparing with LEACH,this protocol can balance the network energy load and lengthen the life cycle of the network.
出处
《计算机仿真》
CSCD
北大核心
2015年第7期273-276,314,共5页
Computer Simulation
基金
国家自然科学基金重点项目(61262074)
关键词
节点能耗
分割线
定时器
Node energy consumption
Split line
Timer
