2010_A Sub-band based Technique for Low Power

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1、ASub-bandbasedTechniqueforLowPowerMediumDataRateUltraWideBandCommunicationKiranBynam,JineshP.Nair,DebaratiSen,RahulSinha,ArunNaniyatSamsungIndiaSoftwareOperations,Bangalore,India{kiran.bynam,jinesh.p,debarati.sen,sinha.rahul,arun.naniyat}@samsung.comAbstract—Asub-bandbasedultraw

2、ideband(SUWB)systemsub-band(SUWB)technologyproposedcancatertosuchisproposed.Thetechniqueprovidesscopeforusingtheultraapplicationsthatrequiremediumdatarateorhighwidebandbandwidthefficientlybyexploitingtheavailableperformancesuchaspersonalareanetworks,wirelesssensorlinkmarginforsh

3、ortrangecommunications.Thebandwidthnetworks.of500MHzormoreisdividedintoafixednumberofsub-TheSUWBtechnologyprovidesscopeforusingthebands.Thedatatransmissionschemeovermultiplesub-bandsbandwidthefficientlybyexploitingtheavailablelinkmargincanbedesignedtoachievehigherdatarate,higher

4、reliabilityforshortrangecommunications.Inthistechnology,theorsupportmulti-useraccess.TheSUWBsystemfacilitatesbandwidthof500MHzormoreisdividedintoNnumberoflowpowerimplementationsbyreducingthesamplingratesub-bands.Anappropriatecombinationofthesub-bandscanrequirementsandalsobytheus

5、eofanorthogonalspreadingcodebasedinterferencerejectionandmulti-pathcancellationbeusedtoachieverequireddatarateorhigherreliabilityreceiver.TheSUWBsystemavoidstheneedforindividualdependingontherequirements.Sub-bandscanalsobeuseddown-conversionandfilteringofthesub-bands.Therequisit

6、eforcommunicationbetweentwoormoredifferentsetofnodespropertiesofthespreadingcodesarealsoprovided.Theprovidingscopeformulti-useraccess.simulationresultsintermsoftheBERperformanceoftheTheuseofsub-bandingforUWBoffersseveralmethodfortheIEEE802.15.4achannelmodelsarepresented.advantag

7、es.ItfacilitateslowpowerimplementationsbyThedesirableperformanceisobtainedforlowandmediumreducingsystemsamplingraterequirements.TheSUWBdelayspreadchannelsevenwithoutemployinganysystemprovidesbetterbandwidthutilizationthroughfineequalizationmethod.controloftransmitpowerspectralde

8、nsitywhilemeetingthespectralmaskrequirements.Th