一种基于优先级的LEACH算法改进及仿真  

The improvement and simulation of LEACH algorithm based on the priority

作　　者：张岩[1] 

机构地区：[1]西安文理学院信息工程学院,陕西西安710065

出　　处：《电子设计工程》2016年第1期77-79,共3页Electronic Design Engineering

基　　金：国家自然科学基金资助项目(41301413);西安市科技计划项目(CXY1443WL19)

摘　　要：针对传统协议LEACH在簇头分布、簇头选取及数据传输等方面存在的不足,提出一种基于优先级的算法对LEACH协议簇头选举公式及簇头分布位置加以改进,保证簇头分布均匀并且处于网络节点密集区域,达到均衡能耗的目的;数据传输阶段采用单、多跳结合的方式平衡网络负载。仿真结果表明,与LEACH及LEACH-EI相比,本文算法有效延长了网络生命周期。Be aimed at the insufficient in the distribution and selection of the cluster heads,the data transmission of the LEACH protocol, this paper proposes an algorithm that improved the LEACH in the selection and the distribution of Cluster head, which Ensures the distribution of cluster heads are uniform and the cluster heads in the dense regions of nodes in the network;The data transmission adopts the methods of one-hop and Multiple-hop. The simulation results show that compared with LEACH algorithm and LEACH-EI algorithm, the scheme prolongs the life cycle of network effectively.

关 键 词：无线传感器网络 邻居节点 能量优先 网络生命周期 

分 类 号：TN915.04[电子电信—通信与信息系统]