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1、4THQUARTER2007,VOLUME9,NO.4IEEE
COMMUNICATIONSSURVEYSTheElectronicMagazineof
OriginalPeer-ReviewedSurveyArticleswww.comsoc.org/pubs/surveysASURVEYONPOWERCONTROLISSUESINWIRELESSSENSORNETWORKSNIKOLAOSA.PANTAZIS,TECHNOLOGICALEDUCATIONALINSTITUTEOFATHENSANDUNIV
2、ERSITYOFTHEAEGEANDIMITRIOSD.VERGADOS,UNIVERSITYOFTHEAEGEANANDUNIVERSITYOFPIRAEUSABSTRACTAWirelessSensorNetwork(WSN)isactuallycomposedofalargenum-berofverysmallinsize,low-cost,low-power,multifunctionalsensornodesthataredenselydeployedeitherinsidethephenomeno
3、norveryclosetoit,andtheyarecapableofcommunicatingfreelyinshortdistances.PowercontrolisanimportantresearchtopicinWSNssinceitcanguaranteebasiclevelsofsystemperformance,suchasdelay,connectivity,andthroughput,inthepresenceorabsenceofmobility.Alargevarietyofsche
4、mesforpowercontrolissuesinWSNshavebeenproposedintheliterature,where-bydifferentapproachestypicallyfocusondifferentperformancemetrics.Thisarticleprovidesaclassificationandpresentsacomprehensivesurveyconcerningpassiveandactivepowercontrolmechanismsinwirelesss
5、ensornetworks,basedonthisclassification.Wealsoevaluateandcomparetheiththeproliferationinsensornodesandthedevel-•ThetopologyofaWSNchangesveryfrequently.Wopmentinwirelesscommunicationtechnologies,•ThenumberofsensornodesinaWSNcanbeseveralWirelessSensorNetworks
6、(WSNs)havegainedordersofmagnitudehigherthanthenumberofsensorworldwideattentioninrecentyears.Theyfacilitatemonitoringnodesinawirelessad-hocnetwork.andcontrollingofphysicalenvironmentsfromremoteloca-•Sensornodesaredenselydeployedinasensorfieldtionswithgreatac
7、curacyandrepresentasignificantimprove-•Sensornodesmainlyuseabroadcastcommunicationmentoverwiredsensornetworks.WSNsareemployedinaparadigm,whereasmostwirelessad-hocnetworksarevastvarietyoffields,suchas:environmentalmonitoring(e.g.,basedonpoint-to-pointcommuni
8、cations.temperature,humidity),monitoringdisasterareasproviding•Sensornodesmaynothaveglobalidentificationduetorelief,fileexchange,conferencing,home,health(monitoringtheirlargeamountofoverheadandlargenum
