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自动化学报 2008
无线传感器网络中一种新的分布式定位方案研究DOI: 10.3724/SP.J.1004.2008.00344, PP. 344-348 Keywords: Wirelesssensornetworks(WSN),nodelocalization,virtualbeacon,energyradio Abstract: ？Nodelocalizationinwirelesssensornetworks(WSN)istreatedasafunctionaldualoftargettrackingfromanovelperspectiveinthepaper.DifferentfromthetraditionaltrackingprobleminWSN,usingthestaticlocation-warenodetoestimatethemovingtarget,themobilenodeisusedtohelpunknownnodestoaccuratelydiscovertheirpositions.Anewnodelocalizationschemevirtualbeacons-energyratioslocalization(VB-ERL)anditsrefinementsfortheWSNarepresented.Inthescheme,themobilenodemovesinthesurveillantfieldbasedontheGauss-Markovmobilitymodelandperiodicallybroadcaststheinformationpackets.Eachstaticunknownnodereceivesthevirtualbeaconsandenergyinitssensingrange,andestimatesitslocationbyfindingtheintersectionofasetofhyper-spheres.Simulationresultsshowtheproposedschemeisefficient.
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