Channel estimation for space-time block coded OFDM systems in the presence of multipath fading

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dc.authorid0000-0001-7328-6626
dc.authorid0000-0002-3591-6567
dc.contributor.authorPanayırcı, Erdalen_US
dc.contributor.authorÇırpan, Hakan Alien_US
dc.date.accessioned2015-07-14T23:48:28Z
dc.date.available2015-07-14T23:48:28Z
dc.date.issued2002
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.description.abstractIn this paper, a computationally efficient, non-data-aided maximum a posterlori(MAP) channel estimation algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems with transmitter diversity using space-time block coding. The Alamouti's transmit diversity scheme with two transmit antennas is employed here and generalized for OFDM systems. The algorithm requires a convenient representation of the discrete multipath fading channel based on the Karhunen-Loeve orthogonal expansion and estimates the complex channel parameters of each subcarriers iteratively using the Expectation Maximization(EM) method, which converges to the true MAP estimation of the unknown channel. Ananalytical expression is derived for the Modified Cramer-Rao. lower bound of the proposed MAP channel estimator. The performance is presented in terms of the mean-square error for a system employing QPS signaling.en_US
dc.description.sponsorshipIEEEen_US
dc.description.sponsorshipICC GLOBECOMen_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationPanayırcı, E. & Çırpan, H. A. (2002). Channel estimation for space-time block coded OFDM systems in the presence of multipath fading. Paper presented at the IEEE Global Telecommunications Conference (GLOBECOM 02), 1157-1161. doi:10.1109/GLOCOM.2002.1188377en_US
dc.identifier.endpage1161
dc.identifier.isbn0780376323
dc.identifier.scopus2-s2.0-0036967321
dc.identifier.scopusqualityN/A
dc.identifier.startpage1157
dc.identifier.urihttps://hdl.handle.net/11729/678
dc.identifier.urihttp://dx.doi.org/10.1109/GLOCOM.2002.1188377
dc.identifier.wosWOS:000182118500230
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakConference Proceedings Citation Index – Science (CPCI-S)en_US
dc.institutionauthorPanayırcı, Erdalen_US
dc.institutionauthorid0000-0001-7328-6626
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEEEen_US
dc.relation.ispartofIEEE Global Telecommunications Conference (GLOBECOM 02)en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDiversityen_US
dc.subjectBlock codesen_US
dc.subjectChannel estimationen_US
dc.subjectChannel state informationen_US
dc.subjectFadingen_US
dc.subjectIterative algorithmsen_US
dc.subjectMaximum likelihood decodingen_US
dc.subjectOFDM modulationen_US
dc.subjectReceiving antennasen_US
dc.subjectTransmittersen_US
dc.subjectTransmitting antennasen_US
dc.subjectAlamouti's transmit diversity schemeen_US
dc.subjectExpectation Maximizationen_US
dc.subjectKarhunen-Loeve orthogonal expansionen_US
dc.subjectModified Cramer-Rao lower bounden_US
dc.subjectQPS signalingen_US
dc.subjectComplex channel parametersen_US
dc.subjectDiscrete multipath fading channelen_US
dc.subjectMaximum a posteriorien_US
dc.subjectMean-square erroren_US
dc.subjectMultipath fadingen_US
dc.subjectOrthogonal frequency division multiplexingen_US
dc.subjectSpace-time block coded OFDM systemsen_US
dc.subjectSpace-time block codingen_US
dc.subjectTransmit antennasen_US
dc.subjectTransmitter diversityen_US
dc.subjectUnknown channelen_US
dc.subjectFading channelsen_US
dc.subjectFrequency responseen_US
dc.subjectMean square error methodsen_US
dc.subjectMultipath channelsen_US
dc.subjectSpace-time codesen_US
dc.titleChannel estimation for space-time block coded OFDM systems in the presence of multipath fadingen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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