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1、BROADBANDISPOWER:INTERNETACCESSVIAPOWERLINENETWORKSDemonstrationoftheTechnicalViabilityofPLCSystemsonMedium-andLow-VoltageLinesintheUnitedStatesGeorgeJee,ConEdisonRamDasRaoandYehudaCern,AmbientCorporationABSTRACTcleardetailedexampleofaPLCarchitectureth
2、athasbeentested.SeveralcompaniesintheUnitedStatesareAnimportantgoalofthetrialwastodemon-interestedinapplyingpowerlinecommunica-stratethatthePLCnetworkcouldbeageneral-tionsforbroadbandInternetaccess.ThisarticlepurposecommunicationsnetworkutilizingIPaspr
3、ovidesanin-depthreportofonespecificend-thenetworkprotocol.Thisisaccomplishedinto-endPLCtrialcarriedoutintheUnitedStates.thisfieldtrialbydemonstratingapplicationsthatThisarticleincludesusefulinformationonthefallintothreemaincategories:consumer(Inter-var
4、iousdevicesutilizedtoconstructthenetwork,netaccessandvideoconferencing),municipalortheapplicationsdemonstrated,andtheperfor-communal(trafficandenvironmentalmonitor-mancecharacteristicsoftheparticularfieldtrialing),andutility(automaticmeterreading,loads
5、electedasemblematic.Insightonthemainmanagement,systemmonitoring,andoutagecomponentsandchallengesinvolvedinthetest-reporting)applications.ingactivityarealsogiven.Thisarticlebeginswithadescriptionofthecomponentsandarchitectureutilizedtoimple-INTRODUCTION
6、mentthePLCnetworkfollowedbythespecificsoftheelectricaldistributionsystemonwhichthePowerlinecommunications(PLC)technologyPLCnetworkisdeployed.Finally,somenetworkenablesutilitiestodeployacommunicationsperformanceresultsarepresented.networkoverexistingpow
7、erlineinfrastructures[1],asshowninFig.1.Thebackhauldatanet-SYSTEMCOMPONENTSworkisusedtointerconnectthepowerlinelastmiletothecommunicationsbackbone.ManyAswithmosthigh-speeddatacommunicationsutilitieshavealreadyinstalledfiberopticcablestechnologies,PLCre
8、quirestheuseofrouters,withexcesscapacity,whichcanserveastheswitches,andrepeaterstoprovideasegmenta-communicationsbackboneorbackhauldatationofthenetworkthatisconsistentwiththenetworkforPLC.Theseorotherleasedhigh-bandwidth,numberofusers,a
