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计算机工程

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基于多尺寸网格的LEACH 协议改进

刘国繁1,丁 燕2   

  1. (1. 湖南工程学院电气信息学院,湖南湘潭411104;2. 湘潭大学信息工程学院,湖南湘潭411105)
  • 收稿日期:2013-10-12 出版日期:2014-11-15 发布日期:2014-11-13
  • 作者简介:刘国繁(1959 - ),男,教授,主研方向:传感器网络,嵌入式系统应用;丁 燕,硕士研究生。
  • 基金资助:
    湖南省科技计划基金资助项目(2012SK3173)。

Improvement of LEACH Protocol Based on Grids with Multiple Dimensions

LIU Guofan 1,DING Yan 2   

  1. (1. School of Electrical Information,Hunan Institute of Engineering,Xiangtan 411104,China; 2. College of Information Engineering,Xiangtan University,Xiangtan 411105,China)
  • Received:2013-10-12 Online:2014-11-15 Published:2014-11-13

摘要: 针对低功耗自适应集簇分层型(LEACH)协议中节点采集的数据存在大量冗余和能量消耗不均衡问题,提出一种能量高效路由协议MDG-LEACH。该协议基于虚拟网格和多尺寸网格选取活跃节点,采用综合考虑节点剩余能量和空间分布情况的簇头选择机制,簇头与基站之间根据动态规划方法建立最短传输路由树进行数据传输。仿真结果表明,与LEACH 协议以及单剑锋的LEACH 改进协议(计算机技术与发展,2013 年第2 期)相比,MDGLEACH协议在均衡节点能量消耗和延长无线传感器网络寿命方面有了较大提高。

关键词: 低功耗自适应集簇分层型协议, 多尺寸网格, 活跃节点, 分簇, 多跳, Matlab 仿真

Abstract: A new energy efficient routing protocol of MDG-LEACH is proposed in the paper,which is based on the question of numerous redundancies with data collecting in nodes and imbalance of energy consumption in Low Energy Adaptive Clustering Hierarchy ( LEACH ) protocol. It selects active nodes based on virtual grids and multiple dimensions grids. Further,it adopts cluster head choice mechanism in overall consideration of residual energy and spatial distribution of nodes and establishes the shortest transmission route tree between cluster heads and base station by the dynamic programming method for date transmission. Simulation results show that MDG-LEACH protocol improves LEACH protocol and the improved LEACH protocol ( Computer Technology and Development,2013, No. 2 ) in balancing energy consumption of nodes and prolonging the life time of wireless sensor network effectively.

Key words: Low Energy Adaptive Clustering Hierarchy (LEACH) protocol, grids with multiple dimensions, active node, clustering, multihop, Matlab simulation

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