资源描述：
《无线传感器网络中的数据融合问题_英文_.pdf》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、第18卷第1期重庆邮电学院学报(自然科学版)Vol.18No.12006年2月JournalofChongqingUniversityofPostsandTelecommunications(NaturalScience)Feb.2006文章编号:1004-5694(2006)01-0053-07*Datafusioninwirelesssensornetwork:AsurveySHAOKai,ZHANGHong-wei,LIANGYan,ZHANGZhi-zhong,LUOJiang-tao(KeyLaboratoryonCommunicationNetwo
2、rksandTestingTechnology,ChongqingUniversityofPostsandTelecommnications,Chongqing400065,P.R.China)Abstract:Afundamentalchallengeinthedesignofwirelesssensornetworks(WSNs)istoover-comeresource-constraints:energyandbandwidth.Datafusionhasemergedasabasicapproachinordertoreducethenumberof
3、transmissionsofsensornodes,andhenceminimizetheoverallpowerconsumptionandtheprobabilityofcollisioninthenetwork.Lotsoffactorsaffecttheperformanceofdatafusion,suchasthetypeofthesourcesofinterest,thedensityofthesensors,theplace-mentofaggregationpoints,theaggregationfunction,andthecommun
4、icationnetworktopology.Inthispaper,theauthorsdividealltheapproachesinto2aspects:self-organizationandin-networkprocessing.Theaimofthispaperistoprovideabetterunderstandingofthecurrentresearchis-suesinthefieldofdatafusion.Inthosetwoaspects,thispaperintroducesseveralimportantis-sues,inc
5、ludingdatadisseminationparadigm,networktopology,synchronization,aggregationfunctionandcollaborativesignalprocessing,andsomeapproachesareintroducedforbetterunder-standingineachissue.Keywords:datafusion;wirelesssensornetwork;self-organization;in-networkprocessingCLCnumber:TN929Documen
6、tcode:Atimeofsensornetworkthustomakebetteruseof1Introductionsensornetworkistoperformin-networkfusion(aggregation)ofdatapacketsforovercomingtheRecentadvancesinelectronicandcomputertech-resource-constrained.Theideaofdatafusionistonologieshavepavedthewayfortheproliferationofwirelesssen
7、sornetwork.Fastdeploymentofsen-combinethedatacomingfromdifferentsources,e-sornetworkishighlydesirableundermanysitua-liminateredundancy,minimizethenumberoftions,suchasestablishingefficient,survivabledy-transmissionsandthussaveenergyandreducecol-namiccommunicationsforemergencyandrescu
8、elision.operations.
