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1、ACCEPTEDFROMOPENCALLASurveyonSensorNetworksIanF.Akyildiz,WeilianSu,YogeshSankarasubramaniam,andErdalCayirciGeorgiaInstituteofTechnologyABSTRACTpromisingsensingtechniqueformilitarycom-mand,control,communications,computing,intel-Recentadvancementinwirelesscommunic
2、a-ligence,surveillance,reconnaissance,andtargetingtionsandelectronicshasenabledthedevelop-systems.Inhealth,sensornodescanalsobementoflow-costsensornetworks.Thesensordeployedtomonitorpatientsandassistdisablednetworkscanbeusedforvariousapplicationpatients.Someothe
3、rcommercialapplicationsareas(e.g.,health,military,home).Fordifferentincludemanaginginventory,monitoringproductapplicationareas,therearedifferenttechnicalquality,andmonitoringdisasterareas.issuesthatresearchersarecurrentlyresolving.Realizationoftheseandothersenso
4、rnet-Thecurrentstateoftheartofsensornetworksisworkapplicationsrequirewirelessadhocnet-capturedinthisarticle,wheresolutionsaredis-workingtechniques.Althoughmanyprotocolscussedundertheirrelatedprotocolstacklayerandalgorithmshavebeenproposedfortradi-sections.Thisar
5、ticlealsopointsouttheopentionalwirelessadhocnetworks,theyarenotresearchissuesandintendstosparknewinter-wellsuitedtotheuniquefeaturesandapplica-estsanddevelopmentsinthisfield.tionrequirementsofsensornetworks.Toillus-tratethispoint,thedifferencesbetweensensornetwo
6、rksandadhocnetworksare:INTRODUCTION•Thenumberofsensornodesinasensornet-Recentadvancesinwirelesscommunicationsandworkcanbeseveralordersofmagnitudeelectronicshaveenabledthedevelopmentoflow-higherthanthenodesinanadhocnetwork.cost,low-power,multifunctionalsensornode
7、sthat•Sensornodesaredenselydeployed.aresmallinsizeandcommunicateuntetheredin•Sensornodesarepronetofailures.shortdistances.Thesetinysensornodes,which•Thetopologyofasensornetworkchangesconsistofsensing,dataprocessing,andcommuni-veryfrequently.catingcomponents,leve
8、ragetheideaofsensor•Sensornodesmainlyuseabroadcastcom-networks.Sensornetworksrepresentasignificantmunicationparadigm,whereasmostadhocimprovementovertraditionalsensors
