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1、陶丹等:基于虚拟势场的有向传感器网络覆盖增强算法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.基于虚拟势场的有向传感器网络覆盖增强算法*SupportedbytheNationalN
2、aturalScienceFoundationofChinaunderGrantNo.90612013(国家自然科学基金);theNationalHigh-TechResearchandDevelopmentPlanofChinaunderGrantNo.2006AA01Z304(国家高技术研究发展计划(863));theProgramforNewCenturyExcellentTalentsinUniversityofChinaunderGrantNo.NCET-04-0110(新世纪优秀人才支持计划);theBeijingNaturalScie
3、nceFoundunderGrantNo.4062024(北京市自然科学基金)Received2007-01-01;Accepted2007-03-05陶丹+,马华东,刘亮(智能通信软件与多媒体北京市重点实验室(北京邮电大学),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:首先从视频传感器节点方向性感知特性出发,设计了一种方向可调感知模型,并以此为基础对有向传感器网络覆盖增强
