lte-a系统载波聚合下的调度算法研究

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1、一————重壅奎堂堡主堂垡笙塞————IIABSTRACTWiththediscussionofLTE—Advancedin3GPPmeeting，theoptionsoftherequlrementandtechnologyevolutionbecomemoreandmoremature．IntheprocessoftheevolutionfromLTEtoLTE-Advanced，therequirementofwiderbandwidmisoneofthemostImportantfactorsthataffecttheevolution．So3GPPpr

2、oposedca耐eraggregationtechnology．Atpresent，schedulingalgorithminLTE．Asystemwithcarrieraggregationistheresearchfocus．1hispapermainlyresearchestheschedulingalgorithmsinLTE—Asystemwithcarrleraggregation·Atfirst，thispaperdetailedlyintroducestheschedulingtheoryinLTEsystem，discussesthesign

3、alingsrelatedwithschedulingandexpoundstheclassicalschedulingalgorithmsinLTEsystem．Andtheninallusiontotheresourceschedulingwlthcarrleraggregation，thispaperproposesaschedulingalgorithmtoimprovethecelledgeusersthroughputandfairnessbetweenallusers，adynamicadjustmentschedulingalgorithmbas

4、edoncelledgeuserstrafficandauserandLTERel一8userincellsystem．modifiedPFalgorithmwithbothLTE．AVortnenon。contiguouscarrieraggregationscene，inallusiontothedisadvantageofPoorexpenenceofthecelledgeuserswithexistingalgorithmandinordertoimDrovethecelledgeusersthroughputandfaimessbetweenallus

5、ers，thispaperproposesaceUedgeuserpnorproportionalfairalgorithm．Simulationresultsindicatematthjsalgorithmcanfairlyimprovethecelledgeusersthroughputandfairnessbetweena11users．Inaddition，itcanadjustthecelledgeusersthroughputandfairnessbetweena11usersthroughcontrollingthesizeofa．Basedont

6、heresearchofthecelledgeuserpriorproportionalfairalgorithm，inallusiontothesituationofusertramcnon—unifomdlstribution，itdynamicallyadjustsCEPPF／PFalgorithmandPF．Aalgorithmaccordingtothecelledgeusertrafficproportionb．Throughthesimulationwecallseethat、Ⅳhen61ssmall，thatusingCEPPF／PFalgori

7、thmsacrificesthesystemthroughputbutimDrovesthecelledgeusersthroughputandfairnessbetweenallusers；whenbislarge，theperlbrmanceofthecelledgeusersthroughputandfairnessbetweenalluserswhenusingPF-AalgorithmisbetterthanwhenusingtheCEPPF／PFalgorithmandPFaIgoritllIll．Vorthecontiguouscarrieragg

8、regationscen