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1、摘要第四章研究分析了信道信息不完整情況下的基于空間距離和基于信號空間維度算法的波束賦形矩陣設(shè)計，以及對能量效率的影響。第五章總結(jié)全文，簡述下一步研究工作。關(guān)鍵詞：多用戶MIMO，波束賦形，廣播信道，能量效率，功率分配IIAbstractABSTRACTAlongwiththerapiddevelopmentofwirelessmobilecommunicationtechnology,
reliableandefficientmobilecommunicationbecomesmoreandmoresignificantto
humanbeings.Limitedspectrum
2、resources,energyresourcesplacerestrictionsonthe
appealofcommunication;thereforeconstantlyimprovingspectrumefficiencyand
energyefficiencybecomeevenmoreimminency.Beamformingplaysanimportantrole
inimprovingthecapacityofMIMOwirelesscommunicationsystems,suppressing
interference,thusimprovingthespe
3、ctralefficiencyofthesystem.Now,thetechnology
hasbeenwritteninto3GPPprotocol.Withnecessarysignal-processingofthetransmittingantennaandreceiving
antenna,beamformingalgorithmcanimproveSINRandsuppressinterference.
Beamformingtechnologycanalsobeseenasthetransmissionsignalspatialfiltering.
Multiply
4、ingtransmittingsignalsfromleftbyatransmittingbeaformingmatrix,and
multiplyingreceivingsignalsfromleftbyanotherreceivingbeaformingmatrix,the
desiredsignalpowerofreceivingsidecanbeenhancedwhileinterferencesignalpower
beingsuppressed.Afterdesigningthebeamformingmatrix,howtoconducta
reasonableand
5、effectiveallocationofpowerisalsooneofthekeytechnologiesto
enhancetheefficiencyofthesystemfrequencyandenergyefficiency.Ontheonehand,
improvingthepowerofthetransmissionsignal,caneffectivelyimprovethesystem
capacityandthetransmitsignalpower,buttoacertainextent,thespectralefficiency
andtheenergye
6、fficiencymaynotbeincreasedasthepowerenhancement.Onthe
otherhand,inthespiritofenergysavingideas,systempowermustbecontrolled.
Combiningbeamformingtechnology,forthepurposeofimprovingenergy
efficiency,researchingontherationaldesignofpowerdistributionsub-covariance
matrixisworthtoanalysis.Inthedes
7、ignofthereceiverbeamformingmatrixandthe
transmitterbeamformingmatrix,thecompletechannelinformationonitsperformance
hasanextremelyimportantrole.However,inpracticalcommunicationsystems,taking
acompletechannelinformationisdifficult,andthereforeh
