ofdma系统资源分配策略的研究与实现

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1、北京邮电大学硕士论文OFDMA系统资源分配策略的研究和实现量，轮询算法公平性最好，比例公平算法能够取得较好的折中性能；总结多用户的联合子载波和功率分配算法，并就一种联合分配算法进行了仿真，联合算法的复杂度较高。多小区场景下：归纳总结干扰抑制技术，对下行干扰协调的提案进行研究并仿真，通过频率复用方法可以协调小区间的同频干扰，直接影响系统吞吐量和小区边缘用户的性能。此外，本文还对用于分布式网络资源分配的干扰议价进行了初步的研究，加深了对无线资源分配的理解。关键词：OFDMA系统资源分配功率分配子载波调

2、度粒子群算法北京邮电大学硕士论丈OFIⅪIA系统资源分配策略的研究和实现RESEARCHANDSIMUIATIoNONRESoURCEALLOCATIONMETHODSINOFDML～SYSTEMABSTRACTWithrapiddevelopmentofwirelesscommunicationtechnologyandfastgrowthofvarioustraffics，limitedwirelessresources，suchasfrequencyandpower,appearprecio

3、us．TheaimofwirelesscommunicationsystemistomakeefficientuseofsuchpreciousresourcesunderdifferentQoS(QualityofService)requirements．Thus，thedesignofeffectiveandflexibleresourceallocationplaysanimportantroleinsystemperformance．一OFDM(OrthogonalFrequencyDiv

4、isionModulation)hasbecomemoreandmorepopularforitshighfrequencyefficiencyandstrongabilitytoanti-jamming，andhasbecomeonekeyphysical—layertechnologyinthenextgenerationofwirelesscommunicationsystem．ResourceallocationinOFDMsystemistoallocatesubcarrierandtr

5、ansmitpowerwiththeknowledgeofinstantaneouschannelconditions，whichiscrucialtoguaranteehighfrequencyefficiencyforsystemandexcellentQoSperformanceforuserinthefuturewirelesssystem．Withthisinmind，thisthesisfocusesonthestudyofvariousresourceallocationscheme

6、s，andgivestheirperformancesimulationresultsinOFDMAsystems．Inthisthesis，westartwithanintroductionofwirelessresourceallocationaswellassomeessentialOFDMknowledge，andthenputemphasisonthestudyofpowerallocationandsubcarrierschedulinginOFDMAsystem．Thestudysc

7、enarioincludesbothsingle—cellOFDM北京邮电大学硕士论文OFDMA系统资源分配策略的研究和实现systemandmulti-cellOFDⅣ认system．Incaseofsingle—cellOFDMAsystem，thestudyrangesfromsingleuserpowerallocation，multi-usersubcarrierschedulingtojpintsubcarrierandpowerallocation．Inmulti—cellcase，

8、wefocusonpowerallocationschemeandinterferencecoordinationtechnology．ThemaincontributionofthisworkistoemploythePSO(ParticleSwarmOptimization)techniquetoresourceallocation，andproposeanewresourceallocationschemeinmulti．eellOFDMAsystem．Thesimulati