mimo信号检测系统量子算法的优化及运用英文小论文-英语论文

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1、MIMO信号检测系统量子算法的优化及运用英文小论文•英语论文MIMO信号检测系统量子算法的优化及运用英文小论文AbstractTheoptimalsolutionofsignaldetectionisaNP(NondeterministicPolynomial)problem・Aimedattheproblemsthatneuralnetworkispronetothelocaloptimumandsimplegeneticalgorithmhastheshortcomingofs1owconvergence,ane

2、wtypeofalgorithmoptimizedbyquantumisproposedandappliedintotheMIMO/MIMO・0FDMdetectionsystems:ItmakesuseofQuantumGeneticAlgorithm(QGA)tooptimizetheinitialdataofneuralnetwork.Inthisscheme,theoutputofdetectorbytheQGAastheinputofdetectorbyneuralnetworktoavoidthebit・

3、errorrateforselectinginitialdatarandomlyandimprovefurtherthedetectionproperty.Simulationresultsshowtheproposedmethodisgoodfortheimprovementofthedetectionrateandreductionofbit-errorrate・1.IntroductionQuantumcomputingisanemergingcomputingmodel,whichcombineswithqu

4、antumtheory、informationtheoryandcomputerscience・itmakesuseofthesuperposition'quantumparallel'quantumentanglementandotherpropertiesofquanlumsystemstoachievemoreefficientthantheclassiccomputingmodelcalculation[1].Becausequantumpropertieshaveauniquefunctionininfor

5、mationfield,itmayexceedtheexisting1imitofclassicalinformationsystemsincaseofimprovingprocessingspeed、ensuringinformationsecurity'increasingcapacityandimprovingaccuracyofinformationandsoon.Soitisveryimportantsignificanttoapplyquantumcomputationtoinformationproce

6、ssingresearch.Currentresearchtopicsinclude:quantumcomputers'quantumcommunicationandquantumcryptographywhichhavemadeamajorbreakthroughintheoryandexperiment.Anewtypeofquantumoptimizationalgorithmcombineswithquantumcomputation、geneticalgorithmsandneuralnetworksisp

7、roposedinthispaperandappliedintosignaldetectionofMIMO(Muitiple-InputMuitiple-Output)andMIMO-OFDM(Muitiple-InputMuitiple-OutputOrthogonalFrequencyDivisionMuitiplexing)systems・Geneticalgorithmisamechanismalgorithmwhichsimulatesthenaturalevolutionofspecies.However

8、,theoptimalsolutionforsomeproblemsisdifficulttofindbyclassicGA,itmakespeopletrytoresearchmoreefficientandfastquantumgeneticalgorithmwhichcombineswithquantumtheoryandgenetica