移动衰落信道中非频率选择性信道统计特性的分析与研究(3)

2021-01-20 15:43

硕士学位论文

武汉理工大学硕士学位论文

Abstract

Withthedevelopmentofthesociety,people’Sneedsforcommunication

areareincreasing,anddemandsforcommunicationqualit)r

Especiallysincethebeginningofthe21st

greatlyalsomoreandmorehigh.hasbeencentury,mobilecommunicationdeveloped,andthewidelyuseofallkindsofnewmobile

acommunicationsubject.The

thetechnologymakesthestudyaboutthewirelesschannelwirelesschannelistheclassicaltransmissionmediaformobilecommunication,all

informationaretransmittedinthischannel.Theperformanceofwirelesschannelwillaffectthequalityofpeople’Scommunication

witlldirectly,inordertotransmithigh-quality.1arge-capacityusefulinformationlimitedspcctrmn1"eSOtlrCesas

muchaspossible,andtheeharacteristiesofwirelesschannelclearly

impacts

ChannelOnandtheirinformationtransmissionmustbethemost

areknown.TheFrequency-nonselectivestatisticaliscommonwirelesschannel.Inthispaper,itscharacteristicsstudiedindetail.

Theresearchbackgroundandsignificationofthis

atfirst,andthehistory

basicsubjectisintroducedbrieflyandthetrendofMobilecommunicationissummarized.TheenneeptandcharacteristicofMobilefadingchannelsareintroduced,theoryoffadingchannels,i.e.,themultipathpropagationandtheDopplerEffectisanalyzed,andthesortofchannelsandthebasicmethodforstudyingMobilefadingchannelsaleintroducedroundly,thisisthebasisforsimulationandstudyingofradiochannels.ThereferencemodelofFrequency—nonselectiveChannelsismodeledwhichis

ondiscussedbasedthe

fading,andtheSuzkiRayleighandRichdistributionandtow

powerdistributionfordescribedSmallscalekindfamiliarDopplerpowerspectrumdensity‘_——JakesmadGanssi

ftrst-orderspectrumdensityareintroducedbfiefly,thepropertiesisanalyzedandsecond—orderstatisticalweightily.The

ofEqual

arcsimulationmodelofFrequency-nonselectiveChannelswhichismodeledbyRicemethodincludesRice,RayleighmadSuzkisimulationmodels.TheMethodJakesDistance(MED),MonteCarloMethod(MCM),andmethod(nD


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