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1、陶丹等:基于虛擬勢場的有向傳感器網(wǎng)絡覆蓋增強算法1163ISSN1000-9825,CODENRUXUEWE-mail:jos@iscas.ac.cnJournalofSoftware,Vol.18,No.5,May2007,pp.1152-1163http://www.jos.org.cnDOI:10.1360/jos181152Tel/Fax:+86-10-62562563?2007byJournalofSoftware.Allrightsreserved.基于虛擬勢場的有向傳感器網(wǎng)絡覆蓋增強算法*SupportedbytheNationalN
2、aturalScienceFoundationofChinaunderGrantNo.90612013(國家自然科學基金);theNationalHigh-TechResearchandDevelopmentPlanofChinaunderGrantNo.2006AA01Z304(國家高技術研究發(fā)展計劃(863));theProgramforNewCenturyExcellentTalentsinUniversityofChinaunderGrantNo.NCET-04-0110(新世紀優(yōu)秀人才支持計劃);theBeijingNaturalScie
3、nceFoundunderGrantNo.4062024(北京市自然科學基金)Received2007-01-01;Accepted2007-03-05陶丹+,馬華東,劉亮(智能通信軟件與多媒體北京市重點實驗室(北京郵電大學),北京100876)AVirtualPotentialFieldBasedCoverage-EnhancingAlgorithmforDirectionalSensorNetworksTAODan+,MAHua-Dong,LIULiang(BeijingKeyLaboratoryofIntelligentTelecommuni
4、cationsSoftwareandMultimedia(BeijingUniversityofPostsandTelecommunications),Beijing100876,China)+Correspondingauthor:Phn:+86-10-62282277,Fax:+86-10-62283523,E-mail:tdfxy@vip.sina.com,http://www.bupt.edu.cnTaoD,MaHD,LiuL.Avirtualpotentialfieldbasedcoverage-enhancingalgorithmfor
5、directionalsensornetworks.JournalofSoftware,2007,18(5):1152-1163.http://www.jos.org.cn/1000-9825/18/1152.htmAbstract:Motivatedbythedirectionalsensingfeatureofvideosensor,adirectionadjustablesensingmodelisproposedfirstinthispaper.Then,thecoverage-enhancingproblemindirectionalse
6、nsornetworksisanalyzedanddefined.Moreover,apotentialfieldbasedcoverage-enhancingalgorithm(PFCEA)ispresented.Byintroducingtheconceptof“centroid”,thependingproblemistranslatedintothecentroidpoints’uniformdistributionproblem.Centroidpointsrepeleachothertoeliminatethesensingoverla
7、ppingregionsandcoverageholes,thusenhancethewholecoverageperformanceofthedirectionalsensornetwork.Asetofsimulationresultsareperformedtodemonstratetheeffectivenessoftheproposedalgorithm.Keywords:directionalsensornetwork;directionalsensingmodel;virtualpotentialfield;coverageenhan
8、cement摘要:首先從視頻傳感器節(jié)點方向性感知特性出發(fā),設計了一種方向可調感知模型,并以此為基礎對有向傳感器網(wǎng)絡覆蓋增強
