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Optimization of Energy Heterogeneous Cluster-Head Selection in Farmland WSN

文献类型： 外文期刊

作者： Miao Yi-sheng 1 ; Yuan Ling 4 ; Wu Hua-rui 1 ; Li Qing-xue 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

2.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

3.Minist Agr, Key Lab Informat Technol Agr, Beijing 100097, Peoples R China

4.Peking Univ, Ctr Comp, Beijing 100871, Peoples R China

关键词： energy heterogeneous;farmland wireless sensor network;Cluster-head Selection;power consumption balance

期刊名称：MACHINERY ELECTRONICS AND CONTROL ENGINEERING III

ISSN： 1660-9336

年卷期： 2014 年 441 卷

页码：

收录情况： SCI

摘要： Power consumption is a key point of WSN (Wireless Sensor Network) lifespan. Because of difference among monitoring objects and complex signal channel condition, the power consumption of each node in farmland WSN is uneven, which makes the network performing as multi-level energy heterogeneous. LEACH and its improving algorithms average the power consumption between nodes by clustering and cluster-head switching. But the cluster-head voting brings a lot extra power consumption. To solve this problem, this paper proposes EACHS (Energy Approximation Cluster-Head Selection), an optimized cluster-head selection mechanism that approximates the energy of cluster-head targeting the lowest energy level in the network. When approaching the target, the current cluster-head collects the energy status of all nodes and determines which one becoming the new cluster-head. The simulation results show that, EACHS can balance the network power consumption and reduce most protocol cost, prolong the overall network lifespan.

  • 相关文献

[1]Clustering Nodes Selection Mechanism in Energy Heterogeneous Farmland Wireless Sensor Networks. Liu, Dayong,Liu, Dayong,Zhao, Chunjiang,Wu, Huarui,Li, Feifei,Zhao, Chunjiang,Wu, Huarui,Li, Feifei. 2016

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