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ID:33533515
大小:2.62 MB
页数:70页
时间:2019-02-26
《3gpplte中上行sc-fdma系统的资源分配的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、北京邮电人学硕士学位论文(HLGA)的基础上提出了“修剪”富余资源块的方法。然后综合上述研究提出了适用于动态业务模型下的最优调度策略,通过仿真分析证明了它在该系统模型下较之前的算法能获得更好的分组时延效果。关键词:LTESC.FDMA资源分配比例公平算法效用函数II?●厶“北京邮电大学硕士学位论文RESEARCHoNRESoURCEALLoCATIoNFoR3GPPLTEUPLINKSC—FDMASYSTEMAbstractLTEisshortforLongTermEvolution;itisthelargestresearchpr
2、ojectonnewtechniquesinitiatedby3GPEIthasimprovedandenhanced3Gairaccesstechnologies.TKSmtechniquehastakenOFDMandMIMOasthesolecriterionfortheevolutionofwirelessnetworks.ThisPaperfocusesonresourceallocationofLTEuplinkSC.FDMAsystem.First,itintroducesthehistoryofthedevelopm
3、entofLTE,systemperformancerequirements,technologyofphysicallayer.TheninthesubsequentsecondchapterdescribesavarietyofSC—FDMAimplementationmethodandthetrade.offofresourceallocationinLTEproject.Analysisofthestrengthsandweaknessesofbothlocalizedanddistributedmode.Pavethewa
4、yfortheresearchoflocalizedresourceallocationinsubsequentchapters.ThenanalysisthebasicprincipleofSC.FDMAbasedonOFDM,itdescribes也etransmitterstructure,subcarriermapping,framestructure,thedefinitionofcyclicprefix,resourceblocksize,modulationcoding,referencesignalstructure
5、.Thethirdchapterisatheoreticalbasisforthefulltext.Firstly,itgivesanoverviewofresourcemanagementinwirelesscommunicationsystems.andthendescribestheresourceallocationprobleminSC—FDMAsystem,proposedtheschedulingframework.Finally,describedseveralcommonpacketschedulingalgori
6、thmsforwirelesscommunications.Thefourthchapteristhemostimportantpartofthetext.Firstly,ithasintroducedtheprogressofthestudy.Thentransformthetraditionaltime-domainproportionalfairalgorithmintothefrequencydomainproportionalfairschedulingalgorithm.Simulateandanalyzethefreq
7、uencydomainpacketschedulingalgorithm(FDPS),comparedthefirstmaximumexpansionmethod(FME),therecursivemaximumUI~‘一北京邮电大学硕士学位论文dilatation(RME),thesmallestdifferencebetweenthevalueoftheenvelopemethod(MADE)bothinfaimessandthroughput,proposedtheextremeconditionsoftheseheurist
8、icalgorithm.MostoftheresearchofSC-FDMApacketschedulingalgorithmisbasedonsaturationtraffic.Thispaperpresentsamorereali
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