基于能量异构的 WSN 多链路算法

王卫星 黄虹 孙道宗 李亮斌 胡子昂

doi:10.3969/j.issn.1000-565X.2015.09.012

华南理工大学学报(自然科学版) >

2015 , Vol. 43 >Issue 9: 74 - 80

DOI: https://doi.org/10.3969/j.issn.1000-565X.2015.09.012

计算机科学与技术

基于能量异构的 WSN 多链路算法

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1．华南农业大学电子工程学院，广东广州 510642; 2．华南农业大学南方农业机械与装备关键技术省部
共建教育部重点实验室，广东广州 510642

王卫星(1963-)，男，教授，博士生导师，主要从事无线传感器网络、电子信息技术在农业中的应用研究．

收稿日期: 2015-01-23

修回日期: 2015-04-08

网络出版日期: 2015-09-07

基金资助

国家星火计划项目(2013GA780046);广东省科技计划项目(2013B020314014);广东省自然科学基金项目
(2014A030313451)

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Energy Heterogeneity-Based Multi-Chain Algorithm for WSN

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1． College of Electronic Engineering，South China Agricultural University，Guangzhou 510642，Guangdong，China;2． Key Laboratory of Key Technology on Agricultural Machinery and Equipment of the Ministry of Education，South China Agricultural University，Guangzhou 510642，Guangdong，China

王卫星(1963-)，男，教授，博士生导师，主要从事无线传感器网络、电子信息技术在农业中的应用研究．

Received date: 2015-01-23

Revised date: 2015-04-08

Online published: 2015-09-07

Supported by

Supported by the National Spark Project(2013GA780046)，the Science and Technology Planning Project of
Guangdong Province(2013B020314014)and the Natural Science Foundation of Guangdong Province(2014A030313451)

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摘要

为了有效均衡网络能耗，提升网络生命周期，提出了一种基于能量异构的多链路算法 EHMCA．该算法采用两级异构的网络结构，网络区域被划分为若干等宽子区域，根据各层间距确定最优簇域半径，簇域内根据高级节点的能量和全网平均能量来确定簇首的阈值，各层之间采用簇间多跳路由并行传输机制，因此，在整个网络区域，簇首通过层间多跳多链路并行传输方式和最优簇域内单跳传输的模式将数据传送给基站．算法仿真结果表明，EHMCA 的网络性能明显优于其他3 种算法，从而验证了 EHMCA 算法的有效性和实用性．

关键词： 无线传感器网络; 网络分层; 能量异构; 分簇; 多链路

本文引用格式

王卫星黄虹孙道宗李亮斌胡子昂 . 基于能量异构的 WSN 多链路算法[J]. 华南理工大学学报(自然科学版), 2015 , 43(9) : 74 -80 . DOI: 10.3969/j.issn.1000-565X.2015.09.012

Abstract

In order to balance the energy consumption of WSN effectively and improve the network lifetime，an
energy heterogeneity-based multi-chain algorithm (EHMCA) is proposed． In the algorithm，a two-stage heterogeneous network is adopted first，and the network area is divided into a number of equal subregions． Then，the optimal domain radius of clusters is determined according to the spacing between layers，the threshold value of the cluster head is also determined based on the energy of the advanced nodes and the average energy of the whole network，and the multi-hop routing inter-cluster parallel transmission mechanism is employed between layers． Therefore，in the whole network area，the cluster head transmits data to the base station by means of the multi-hop inter-layer multi-link parallel transmission mode and the single hop transmission mode of the optimal cluster． Simulation results show that the network performance of the EHMCA is better than those of the other three kinds of protocols，which
proves that the EHMCA is effective and practical．

Key words： wireless sensor networks; hierarchical network; energy heterogeneity; clustering; multi-chain

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