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| 基于LEACH协议的簇头选举改进算法 | |
| 引用本文： | 廖明华,张华,王东. 基于LEACH协议的簇头选举改进算法[J]. 计算机工程, 2011, 37(7): 112-114. DOI: 10.3969/j.issn.1000-3428.2011.07.037 |
| 作者姓名： | 廖明华 张华 王东 |
| 作者单位： | 1. 湖南大学计算机与通信学院,长沙410082;湖南财政经济学院信息管理系,长沙410205 2. 湖南财政经济学院信息管理系,长沙,410205 3. 湖南大学计算机与通信学院,长沙,410082 |
| 基金项目： | 湖南省自然科学基金资助项目 |
| 摘 要： | 以减小LEACH协议簇形成过程中的能量消耗为目的，提出一种改进的簇头选举算法LEACH-ECHC。当所有簇头的剩余能量最小值小于某个阈值时，进行全网选举；当簇头能量小于该簇剩余能量的平均值时，进行簇内选举，并对簇头产生的阈值进行优化。仿真结果显示，LEACH-ECHC算法有更高的能量有效性，可以延长网络寿命，使节点能耗更均衡。 |
| 关 键 词： | 无线传感器网络 LEACH协议 簇内选举 剩余能量 距离因子 |
Improved Cluster-head Election Algorithm Based on LEACH Protocol |
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| LIAO Ming-hua,ZHANG Hua,WANG Dong. Improved Cluster-head Election Algorithm Based on LEACH Protocol[J]. Computer Engineering, 2011, 37(7): 112-114. DOI: 10.3969/j.issn.1000-3428.2011.07.037 | |
| Authors: | LIAO Ming-hua ZHANG Hua WANG Dong |
| Affiliation: | 1(1.School of Computer and Communication,Hunan University,Changsha 410082,China;2.Department of Information Management,Hunan College of Finance and Economics,Changsha 410205,China) |
| Abstract: | In order to reduce the energy of clustering in Low Energy Adaptive Clustering Hierarchy（LEACH）,this paper proposes an improved cluster-head election algorithm namely Election of Cluster Heads in the Cluster（LEACH-ECHC）.If the residual energy of each cluster-head is lower than the given threshold,cluster-head election is done in the whole network.If the cluster-head＇s residual energy is lower than the average residual energy,the election is done in the cluster.And the selection method of the threshold for electing cluster-head is optimized.Simulation results demonstrate that LEACH-ECHC has better energy efficiency,prolongs network lifetime,and makes node energy consumption more balanced. |
| Keywords: | WSN Low Energy Adaptive Clustering Hierarchy（LEACH） protocol election in the cluster remaining energy distance factor |
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