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ID:33322697
大小:7.55 MB
页数:52页
时间:2019-02-24
《3gpp+lte系统中下行控制信道多用户资源分配的研究》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、j£塞銮通太堂亟±堂鱼途塞垒垦墨!&△堡IABSTRACTABSTRACT:In3GPPLTEsystem,physicaldownlinkcontrolchannelgovernsthecenterposition.neresearchonPDCCHschedulerisofprimaryimportancetothewirelesscommunicationsystem,sincewhetherit’SwelldesignedCansignificantlyaffecttheusersatisfactionandsys
2、temperformance.Tmspaperanalyzesseveraldifferentperformancemetricsofbasicscheduling.resourceshufflescheduling,aggregationshapingschedulingandShapingandShuffleSchedulingalgorithmswithblockprobability,CCEutilizationratioandallocationdelaytimeevaluationindexesthroughM
3、ont—Carlosimulation.ThesimulationresultsshowthattheShapingandShuffleSchedulingperformsthebestinthethreeevaluationindexes.T1lispaperstillstudiesfourimprovedPDCCHschedulingalgorithms.whichdesigntheUEpriorityalgorithmsonPDCCH.SimulationshowsthatMin—SimprovesPDCCHsche
4、dulingefficientlybyeliminatingblockprobabilityandincreasingCCEutilizationratio.ThispaperalsoproposedanewRNTIallocatealgorithm.TllispaperalsobuildtwoevaluationmodelstosimulateOurRNTIallocatealgorithm.Throughsimulation,ourRNTIallocationmethodiSbetterthanothertwoRNTI
5、allocationmethod.BasedonnewRNTIallocationalgorithmthispaperproposedanewPDCCHschedulingalgorithmcalledRAschedulingalgorithm.nlispaperalsocombinedRAschedulingalgorithmwithMin—ALschedulingalgorithm.Tmspapercomparedbasicschedulingalgorithmwiththetwoschedulingalgorithm
6、sthroughMont—Carlosimulation,theresultshowedRAMill一ALschedulingalgorithmhadthelowestblockprobabilitywhileRAschedulingalgorithmhasthehighestCCEutilizationratio.KEYWORDS:U陋:PDCCH:RNTI;resourceallocation;priority;CCECI.ASSNO:TN929.5I星塞童逼盔堂..亟..圭.堂鱼逾塞旦丞目录中文摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.iiiABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..iv1引言⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.1课题技术背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一11.2课题研究意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.,l1.3本文的主要工作和内容安排⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一22LTE体系架构与协议⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.42.1层3-RRC层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.42。2层2一PDCP层,RLC层,MAC层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯42.2.1PDCP层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.52.2.2RLC层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯52.2.3MAC层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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