協(xié)同通信中的功率分配研究.pdf

1、南京郵電大學碩士學位論文協(xié)同通信中的功率分配研究姓名：許育進申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：邵世祥20090301南京郵電人學碩Ij研究生學位論文AbstractAbstractInwirelesscommunication，manydiversitytechnologieshasbeenputforwardinordertoconfrontthedeclineofthewirelesschannelCooperativ

2、ediversityisanewdiversitytechnologyitformvirtualMIMOantennaarraytoimprovethesystemperformancebyUSerScooperativecommunicatingCooperativediversitysystemsandtheirpropertiesbecomearesearchhotspotWithindepthstudyofcooperative

3、systems，powerallocationtechnologyisintroducedtothecooperativesystem，theuseofpowerallocationtechnologyplayanimportantroleinreducingthesymbolerrorrateofcooperativesystem，improvingcooperativesystemcapacityandSOonFirstlypape

4、rintroducesthebasicprinciplesofcooperativediversityandanalysisseveralcommoncooperativesystemanditsperformanceThenpaperanalyzedtheoptimalpowerallocationofDFandAFformakingSERtobethesmallestIndifferentchannelconditionswesim

5、ulateandcomparetheperformanceofthecooperationsystemswitheitherDForAFAccordingtheInstantaneouschannelstateinformation(ISCI)andstatisticschannelstateinformation(SCSI)toworkingouttheoptimalpowerallocationofmaximizingsystemc

6、apacityinthispaperBasedonthis，indifferentchannelconditionswesimulateandcomparethedifferentpowerallocationinfluencingthesystemcapacityFinallypaperstudiesthetwodifferentpowerallocationmechanismsofmultinodecooperativecommun

7、icationsystem：centralizedpowerdistributionanddistributedpowerallocationThroughtheanalysisofthese，weproposedasub—optimizationpowerallocationunderAFcooperativesystemThesimulationresultsshowthat，withonlypartoftheICSItheAFco