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1、AbstractBecauseofitsexcellentperformance,OFDMtechnologyiswidelyusedinvariousfieldsofwirelesscommunications.Ithastheadvantagesoflowcomplexity,highimplementationalflexibility,highfrequencyefficiency,strongrobusttoanti-frequencyselectivefading,andsoon.Accordingtorequiresoftheservicesandthereal-ti
2、mechannelconditions,theOFDMadaptiveresourceallocationtechniquecanallocatesub-carriers,bitsandpoweradaptivelytoimprovethesystemperformance.Therefore,thisarticlemainlyresearchesontheOFDMadaptiveresourceallocationtechnique.Firstly,weintroducethetheoreticalknowledgeoftheradiochannelcharacteristics
3、andOFDMtechnology.Basedonthesetheoreticalknowledges,webuildasimulationsystemforOFDMadaptiveresourceallocationsimulationintheMatlabenvironment.Secondly,thearticledescribesthetheoreticalknowledgeoftheOFDMadaptiveresourceallocationandmakessimulationsofclassicadaptiveresourceallocationalgorithms.F
4、inally,weproposealowcomplexitybuthighperformancemulti-useradaptiveresourceallocationalgorithmnamedBABS-ACG-Campelloalgorithm.Wemakedetailtheoreticalanalysesoftheproposedalgorithmincomplexityandconvergencespeed,andthenwemakesimulationsandanalysesofthefairnessoftheproposedalgorithm.Wealsopresent
5、theuser’ssub-carrier,bitandpowerallocationsimulationresultsofBABS-ACG-Campelloadaptiveresourceallocationalgorithm.Bymakingcomparisonstooptimalmulti-useradaptiveresourceallocationoptimalalgorithmincomplexity,convergencespeedandbiterrorrate,wedrawtheconclusionthattheproposedalgorithmhastheadvant
6、agesofgoodfairness,highconvergencespeedandlowcomputationcomplexity,andthattheproposedlowcomplexityalgorithmsofferscomparableperformancewiththeoptimalalgorithm.Keyword：OFDMAdaptiveresourceallocationBABSACGCampello目录第一章绪论...........................................................................
7、..........................................11.1研究背景...............................................................................................................................11.2OFDM自适应资源分配研究进展........................................
