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1、MIMO無線信道仿真摘要:多入多出(MIMO)技術(shù)被認(rèn)為是現(xiàn)代通信技術(shù)中的重大突破之一,越來越成為無線通信領(lǐng)域的研究熱點(diǎn)。MIMO技術(shù)是未來無線通信系統(tǒng)中實(shí)現(xiàn)高數(shù)據(jù)速率傳輸、改善傳輸質(zhì)量、提高系統(tǒng)容量的重要途徑。目前,MLMO技術(shù)已經(jīng)在寬帶無線接入、3G、B3G等無線通信系統(tǒng)中得到了廣泛的應(yīng)用。然而,MIMO無線系統(tǒng)大容量的實(shí)現(xiàn)和其它性能的提高極大地依賴于MIMO無線信道的特性;同時(shí),研究基于MIMO的各種關(guān)鍵技術(shù)和處理算法也需要建立MIMO信道的模型,進(jìn)行相應(yīng)的仿真,以便評估各種處理算法的優(yōu)劣和系統(tǒng)性能的好壞?;谏鲜鲈?,本文研究了現(xiàn)有應(yīng)用環(huán)境下MIMO無線通信系統(tǒng)的信道建
2、模方法,綜合了一個(gè)寬帶統(tǒng)計(jì)MIMO無線信道模型,可以作為研究MIMO無線通信系統(tǒng)的一個(gè)通用空時(shí)信道模型。分別建立了3GPP,IEEE802.16、IEEE802.11n和分布式MIMO系統(tǒng)的MIMO信道基于COSSAP的仿真平臺,進(jìn)行了計(jì)算機(jī)仿真.關(guān)鍵詞:多入多出,MIMO,無線衰落信道,信道建模,信道仿真20Abstract:Themorea(MIMO)technologyhasbeenconsideredamajorbreakthroughinmoderncommunicationstechnology,moreandmorebecomeoneoftheresearchfo
3、cusinthefieldofwirelesscommunication.MIMOtechnologyisthefuturewirelesscommunicationsystemtorealizehighdatarateoftransmission,improvetransmissionquality,improvesystemcapacityofimportantways.Atpresent,MLMObroadbandwirelessaccesstechnologyhasB3Getc,and3Gwirelessmobilecommunicationsystembeenwide
4、lyused.However,MIMOwirelesssystemcapacityofrealizationandotherperformanceimprovementreliesheavilyonMIMOwirelesschannelcharacteristics;Meanwhile,basedontheresearchofkeytechniquesandthemultiple-inputmultiple-output(MIMO)algorithmsalsoneedtoestablishMIMOchannelmodel,carriesonthecorrespondingsim
5、ulationtoevaluatevariousprocessingalgorithm,thefitandunfitqualityandperformanceofthesystemisgood.Basedontheabovereasons,thispaperstudiestheexistingapplicationenvironmentsMIMOwirelesscommunicationsystemchannelmodelingmethod,integratedabroadbandstatisticalMIMOwirelesschannelmodel,canbeusedasar
6、esearchMIMOwirelesscommunicationsystemwhenageneralemptychannelmodel.IEEE802.16areestablished,andthe3GPPIEEE802.11nanddistributedMIMOsystemsbasedontheMIMOchannelCOSSAPsimulationplatform,computersimulationiscarriedout.Keywords:multiple-inputmultiple—output,M1MO,wirelessfadingchannel,channelmod
7、el,charmelsimulation20目錄第一章、單入單出無線信道的仿真設(shè)計(jì)…………………………………………51.1平坦衰落信道的仿真方法…………………………………………………51.2頻率選擇性衰落信道的仿真方法…………………………………………6第二章、信道的仿真設(shè)計(jì)…………………………………………………………72.13GPPMIMO信道仿真設(shè)計(jì)…………………………………………………72.2IEEE802.16MIMO信道仿真設(shè)計(jì)…………………………………………82.3IEEE802.