基于信号相关性的无线传感器网络节点选择方法研究-豆柴文库

您所在位置：网站首页 / 基于信号相关性的无线传感器网络节点选择方法研究.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

基于信号相关性的无线传感器网络节点选择方法研究
Abstract
WirelessSensorNetworks(WSNs)arewidelyusedformonitoringandsensinginvariousfields.Asthenumberofsensornodesincreases,theselectionofoptimalnodesbecomesimportanttomaximizethenetworkperformance.Inthispaper,weproposeanodeselectionmethodbasedonsignalcorrelationtoimprovetheperformanceofWSNs.Theproposedmethodselectsnodesthathavehighsignalcorrelationwithneighboringnodesandconsiderstheenergyconsumptionofnodes.Simulationresultsshowthattheproposedmethodachievesbetterperformancecomparedtotraditionalnodeselectionmethods.
Introduction
WirelessSensorNetworks(WSNs)consistofsmall,low-powerdevicescalledsensornodesthatcommunicatewitheachothertocollectandtransmitdata.WSNsareusedformonitoringandsensinginvariousfieldsincludingenvironmentalmonitoring,healthcare,andindustrialcontrol.Asthenumberofsensornodesincreases,theselectionofanoptimalsubsetofnodesbecomesimportanttoimprovenetworkperformanceandreduceenergyconsumption.Nodeselectionmethodsbasedoncoverage,connectivity,andenergyhavebeenproposedintheliterature.
Inthispaper,weproposeanodeselectionmethodbasedonsignalcorrelationtoimprovetheperformanceofWSNs.Theproposedmethodselectsnodesthathavehighsignalcorrelationwithneighboringnodesandconsiderstheenergyconsumptionofnodes.Therestofthepaperisorganizedasfollows.Section2describesrelatedwork.Section3presentstheproposednodeselectionmethod.Section4presentssimulationresults.Section5concludesthepaper.
RelatedWork
VariousnodeselectionmethodsforWSNshavebeenproposedintheliterature.Coverage-basedmethodsselectnodesthatcovertheentiresensingarea,whileconnectivity-basedmethodsselectnodesthathavemanyneighborstoensureconnectivity.Energy-basedmethodsselectnodesthathavehighresidualenergytoreduceenergyconsumption.Thesignalcorrelation-basedmethodweproposeisdifferentfromthesemethodsbecauseitselectsnodesthathavehighsignalcorrelationwithneighboringnodes.
Signalcorrelationhasbeenusedinmanyapplicationssuchasimageprocessingandsignalprocessing.Inwirelesscommunication,signalcorrelationisusedto