标签: mimo-ofdm

OFDM無線通信4G基礎BroadbandMIMO-OFDMWirelessCommunicationsBroadbandMIMO-OFDMWirelessCommunicationsGORDONL.STBER,FELLOW,IEEE,JOHNR.BARRY,MEMBER,IEEE,STEVEW.MCLAUGHLIN,SENIORMEMBER,IEEE,YE(GEOFFREY)LI,SENIORMEMBER,IEEE,MARYANNINGRAM,SENIORMEMBER,IEEE,ANDTHOMASG.PRATT,MEMBER,IEEEInvitedPaperOrthogonalfrequencydivisionmultiplexing(OFDM)isapopularmethodforhighdataratewirelesstransmission.OFDMmaybecombinedwithantennaarraysatthetransmitterandreceivertoincreasethediversitygainand/ortoenhancethesystemcapacityontime-variantandfrequency-selectivechannels,resultinginamultiple-inputmultiple-output(MIMO)configuration.ThispaperexploresvariousphysicallayerresearchchallengesinMIMO-OFDMsystemdesign,includingphysicalchannelmeasurementsandmodeling,analogbeam……

AHardwareArchitectureofMIMO-OFDMSynchronizerAHardwareArchitectureofSynchronizerMIMO-OFDMSOCLaboratoryofMicroelectronicsInstituteChineseAcademyofSciencesBeijng,100029,ChinaEmail:hxfabc@yeah.netAbstract-Inthispaper,ahardwarearchitectureforMIMOOFDMsystemsynchronizerispresented.Theproposedsynchronizationunitcanachievesynchronizationinthetime-domainandfrequency-domain.Thetime-domainsynchronizationcanbeachievedbyagroupofmatchedfiltersofZCZcodes.SinceMIMO-OFDMsystemhavemultipletransmittingantennasandmultiplereceivingantennas,everyreceivingantennacanreceivethesignalfromalltransmittingantennas.Whentheallsub-channelsdelaybetweenreceiving/transmittingantennasaredifferent,everyframedetectioninreceivingantennaswillbeinterferedfromothertransmit……