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时间:2020-04-24
《分布式能量高效的WSN非均匀分簇路由多跳算法-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、一L35I江氢—■■圆.35No.21l■JoURNALOFJlANGSUUNIVERSITY(NaturalScienceEdition)doi:10.3969/j.issn.1671—7775.2014.02.013分布式能量高效的WSN非均匀分簇路由多跳算法吴玉成,谢璐(1.重庆大学通信工程学院。重庆400030;2.国家保密科技测评中心,北京100044)摘要:针对无线传感器网络路由存在能量空洞的问题,提出一种分布式非均匀分簇路由算法.该算法在选择候选簇首时引入位置因子和平均能量因子来平衡全网节点的剩余能量;网络运
2、行过程中,候选簇首通过自适应校正其竞争半径进行非均匀分簇.采用基于能量和距离的能耗函数入簇机制以均衡全网能量消耗,利用多跳动态路由以避免稳定传输阶段转发节点因能耗过大而快速死亡.通过构建网络模型,采用Matlab对文中算法和UCR算法进行仿真分析比较.仿真结果表明:文中算法簇首消耗能量的方差波动不大较稳定,相比UCR更好地均衡了簇首能量消耗,并且能够有效避免能量空洞,均衡网络负载,网络生命周期较UCR算法提高了约34%.关键词:无线传感器网络;非均匀分簇;能量空洞;分布式;能量高效;动态路由中图分类号:TN92文献标志码:
3、A文章编号:1671—7775(2014)02—0196—05引文格式:吴玉成,谢璐.分布式能量高效的WSN非均匀分簇路由多跳算法[J].江苏大学学报:自然科学版,2014,35(2)196—200Distributedenergyeficientunequalmulti—hopclusteringalgorithmforwirelesssensornetworksWuYucheng,XieLu(1CollegeofConmmnicationEngineering,ChongqingUniversity,Chongqing
4、400030,China;2.NationalSecrecyScienceandTechnologyEvaluationCenter,Beijing100044,China)Abstract:Toavoidtheenergyholeinwirelesssensornetworks(WSN),adistributedenergy—eficientun—equalmulti—hopclusteringalgorithmwasproposed.Whententativeclusterheadswereselected,locat
5、ionfactorandaverageenergyfactorwereintroducedtobalancetheresidualenergyofthewholenetworknodes.DuringtheoperationoftheWSN,thetentativeclusterheadsadjustedtheircompetitionrangesa—daptivelytoconstructunevenclusters.Accordingtotheproposedenergyconsumptionfunction,then
6、odeswereusedtodecidewhichclustertojointobalanceenergyconsumptionofwholenetwork.Atthestageofstabletransmission,eachclusterheadwithdynamicroutingwasadoptedtoavoidtherapiddeathofrelaynodeduetoexcessiveenergyconsumption.AnetworkmodelwasbuiltbyMatlabtocomparethepropose
7、dalgorithmandUCRalgorithm.Thesimulationresultsshowthattheenergyconsumptionofclusterheadvariancevolatilityintheproposedalgorithmisrelativelystable,andtheenergyconsumptionofclusterheadisbetterbalancedthanthatinUCR.Theproposedalgorithmprolongsthenetworklifetimeupto34
8、%againstUCR,andcaneffectivelyavoidtheproblemofenergyhole.Keywords:wirelesssensornetwork;unequalclustering;energyhole;distributed;energy—eficient;dynamic
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