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基于推荐信道感知序列的频谱切换方案(英文).docx

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基于推荐信道感知序列的频谱切换方案(英文) Title:SpectrumSwitchingSchemesBasedonRecommendationChannelPerceptionSequences Abstract: Withtherapidgrowthanddevelopmentofwirelesscommunicationtechnology,theneedforefficientspectrumutilizationhasbecomeincreasinglyimportant.Frequencyspectrumswitchingisapromisingsolutionforthescarcityofspectrumresources.Inthispaper,weproposeaspectrumswitchingschemebasedonrecommendationchannelperceptionsequences.First,wediscusstheconceptofchannelperceptionandintroducethenotionofchannelperceptionsequence.Then,weproposeourspectrumswitchingschemethatincorporatesbothchannelstateinformationandchannelperceptionsequencestooptimizethespectralefficiencyofthesystemwhilemaintainingahigh-qualitycommunicationlink.Finally,weevaluatetheperformanceoftheproposedschemethroughsimulationexperimentsandcompareitwithseveralexistingspectrumswitchingschemes.Theresultsshowtheeffectivenessofourproposedschemeinimprovingspectralefficiencyandmaintainingastableconnectioninthedynamicspectrumenvironment. Introduction: Wirelesscommunicationshaveevolvedovertheyears,andthedemandfordataserviceshasreachedunprecedentedlevels.Withthepopularityofvariouswirelessdevices,thefrequencyspectrumisbecomingincreasinglycongested.Therefore,spectrumscarcityhasbecomeasevereproblem,whichneedstobeaddressed.Inthiscontext,frequencyspectrumswitchinghasemergedasaneffectivesolution.Spectrumswitchingcanenabletheoptimizationofspectralusagebymakinguseofunderutilizedspectrumportions.However,conventionalspectrumswitchingschemesrelysolelyonchannelstateinformation(CSI),resultinginsuboptimalperformance.Theperceptionofradiochannelscanbeimprovedbyestimatingthechannelparametersthroughsignalfeaturerecognition,whichistermedchannelperception.Ourproposedschemeaddressestheselimitationsbyleveragingtheperceptionsequenceofchannelstocustomizespectrumswitchingschemes. ChannelPerception: Channelperceptionreferstotherecognitionandunderstandingofwirelesscommunicationchannels.Channelperceptionisbasedonchannelparameterestimationthatdetectsandidentif