多用戶MIMO及中繼通信網(wǎng)絡(luò)中的預(yù)編碼研究與FPGA實(shí)現(xiàn).pdf

1、東南大學(xué)碩士學(xué)位論文多用戶MIMO及中繼通信網(wǎng)絡(luò)中的預(yù)編碼研究與FPGA實(shí)現(xiàn)姓名：羅元釬申請學(xué)位級(jí)別：碩士專業(yè)：信號(hào)與信息處理指導(dǎo)教師：楊綠溪20080707AbstractTheincreasingdemandforhigherdatarateofnewservicescallsforinnovativetechnologiestoimprovenetworkcapacityMultiuserprecodingandschedulin

2、gcouldimprovethesystemperformancebyexploitingmultiuserdiversityAndtherealybasedwirelesscommunicationhavesolvedmanyproblemsthatexistinthetraditionalcellularwirelessnetworks，eg1ackofexpansibilityandrobustness，tosatisfypeop

3、le’SaspirationofcommunicatinganywhereatanytimeSomultiuserprecoding、schedulingandrelaycooperationareallthekeytechnologiesofthefuturewirelesscommunicationMultiuserorthogonalprecodingsceduling，innovativeadaptiveSDMA(SpaceDi

4、visionMultipleAccess)，severalrelaycommunicationtechnologiesandhardwareimplementationofoptimalprecodingmatrixarethemaintopicofthispaper。1Weintroducethedevelopmentoftechnologyincludinglinearandnonlinearbetweenthesetwotypes

5、wirelesscommunication，especiallytheprecodingprecodingThengivethedifferenceperformance2WeproposeanewadaptiveSDMAalgorithmunderthelowerusernumbersystemFisrt，weintroducethemulti—USerprecodingtechnologyandscheduling，usingspa

6、cediversitytoimprovethesystemperformanceComparingtheperformanceofrandombeamformingorthogonalrandombeamforming，SDMAbasedonbeamselectionandanewadaptiveSDMAwegetabettercapacityperformanceunderthelowerusernumber3Relaybasedco

7、mmunicationnetworkscombibedwithMIMOtechnologyhavebeenintroducedFirst，weprovideatwo—hoprelayingsystemmodelandtheanalyticalevaluationsofcorrelatedanduncorrelatedrelayingsystemwithseveralcommunicationschemescombinedwithMIMO

8、technologyareintroducedThroughsimulationandanalysiswedemonstratetherelayschemewhichcombinedwithMIMOtechnologyissuperiorityandapplicationprosperity4WefocusedontheField。ProgrammableGateArray(FPGA)implementationofoptimalpre

9、codingbasedonthesingularityvaluedecomposition(SVD)algorithmofchannelspaceFirst，theresearchworksaremadeonsystemmodelofoptimalprecodingandCORDIC(CoordinateRotationalDigitalComputer)algorithmforimplementationThenweintroduce

10、theFPGAdesignmodeandthenumericalvalueoftheimplementationprecisionThepipeliningdesignof2rangeprecodingmatrixhasbeenimplementedusingXilinxSpartan3EFPGAdevelopmentboardKeyword：Multiple—input—multiple—output(MIMO)Beamforming