计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (19): 71-74.

• 网络、通信、安全 • 上一篇    下一篇

无线传感网中基于能量矩阵的多簇头分簇算法

党小超1,郝占军2,3   

  1. 1.西北师范大学 网络教育学院,兰州 730070
    2.西北师范大学 数学与信息科学学院,兰州 730070
    3.西京学院 工程技术系,西安 710123
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-07-01 发布日期:2011-07-01

Multi-cluster header clustering algorithm in wireless sensor networks based on energy matrix

DANG Xiaochao1,HAO Zhanjun2,3   

  1. 1.College of Network Education,Northwest Normal University,Lanzhou 730070,China
    2.College of Mathematics & Information Science,Northwest Normal University,Lanzhou 730070,China
    3.Department of Engineering Technology,Xijing University,Xi’an 710123,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-01 Published:2011-07-01

摘要: 在能量异构的无线传感器网络环境下,提出了一种基于能量矩阵的剩余能量预测模型和新的聚簇路由协议。模型中引入卡尔曼过滤算法,协议中节点通过建立相邻节点剩余能量预测机制,使选举簇头节点的概率与节点当前剩余能量直接相关,以均衡节点的能量消耗,延长网络寿命。此外,还通过多簇头方法,提高数据传输可靠性。仿真实验结果表明,LEACH-EM协议在延长网络生命周期和减少能量消耗上比其他协议有了很大改善。

关键词: 无线传感器网络, 能量矩阵, 簇, 网络寿命, 能量损耗

Abstract: This paper proposes the remaining energy prediction model based on energy matrix and a novel clustering routing protocol in energy heterogeneous wireless sensor networks environment.The Kalman filtering algorithm is introduced into the model,in which a node,according to energy prediction mechanism,independently makes its decision to compete for becoming a master cluster head in order to improve energy efficiency and prolong system lifetime.In addition,this protocol selects multi-cluster-heads so that data transmission reliability is enhanced.The results of simulation show that LEACH-EM protocol is greatly improved upon other protocol in regard to extending network lifetime and reducing energy consumption.

Key words: wireless sensor network, energy matrix, cluster, network lifetime, energy consume