Comparison of different MIMO-OFDM signal detectors for LTE

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Tirkkonen, Olav
dc.contributor.author Shao, Qiwen
dc.date.accessioned 2015-01-15T11:27:58Z
dc.date.available 2015-01-15T11:27:58Z
dc.date.issued 2014-12-15
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/14944
dc.description.abstract Long 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.extent 51+5
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Comparison of different MIMO-OFDM signal detectors for LTE en
dc.type G2 Pro gradu, diplomityö en
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.subject.keyword signal detection en
dc.subject.keyword OFDM en
dc.subject.keyword MIMO en
dc.subject.keyword BER en
dc.subject.keyword spatial correlation en
dc.identifier.urn URN:NBN:fi:aalto-201501161100
dc.programme.major Radio Communications fi
dc.programme.mcode S3019 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Tirkkonen, Olav
dc.programme EST - Master’s Programme in Radio Science and Engineering fi
dc.location P1 fi


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