Comparison of different MIMO-OFDM signal detectors for LTE

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorTirkkonen, Olav
dc.contributor.authorShao, Qiwen
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.supervisorTirkkonen, Olav
dc.date.accessioned2015-01-15T11:27:58Z
dc.date.available2015-01-15T11:27:58Z
dc.date.issued2014-12-15
dc.description.abstractLong Term Evolution (LTE), is a standard for radio communications of high-speed data transmission for mobile phones and data business [1]. It is based on the Global System for Mobile communications (GSM)/ Enhanced Data rate for GSM Evolution (EDGE) and Universal Mobile Telecommunications System (UMTS)/ High-Speed Packet Access (HSPA) network technologies, increasing the capacity and speed using new modulation techniques [1, 2]. Orthogonal frequency-division multiplexing (OFDM) and multiple-input multiple-output (MIMO) are the key technologies of LTE. MIMO technology can significantly increase channel capacity and spectrum efficiency without occupying any more bandwidth. Signal detection algorithms are studied in this thesis: Zero-Forcing (ZF) detector, Minimum Mean Square Error (MMSE) detector, Maximum Likelihood (ML) detector, QR decomposition with M-algorithm maximum likelihood detector (QRM-MLD) and Sphere Decoding (SD) detector. The results of the study show that the optimal signal detector is superior to other signal detectors on bit-error-rate (BER) performance. The BER performance in a correlated MIMO-OFDM scenario of the detectors are also studied.en
dc.format.extent51+5
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/14944
dc.identifier.urnURN:NBN:fi:aalto-201501161100
dc.language.isoenen
dc.locationP1fi
dc.programmeEST - Master’s Programme in Radio Science and Engineeringfi
dc.programme.majorRadio Communicationsfi
dc.programme.mcodeS3019fi
dc.rights.accesslevelopenAccess
dc.subject.keywordsignal detectionen
dc.subject.keywordOFDMen
dc.subject.keywordMIMOen
dc.subject.keywordBERen
dc.subject.keywordspatial correlationen
dc.titleComparison of different MIMO-OFDM signal detectors for LTEen
dc.typeG2 Pro gradu, diplomityöen
dc.type.okmG2 Pro gradu, diplomityö
dc.type.ontasotMaster's thesisen
dc.type.ontasotDiplomityöfi
dc.type.publicationmasterThesis
local.aalto.digifolderAalto_92209
local.aalto.idinssi50416
local.aalto.openaccessyes
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