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dc.contributor.authorVlachos, Evangelos
dc.contributor.authorLalos, Aristeidis
dc.contributor.authorBerberidis, Kostas
dc.date.accessioned2014-11-30T18:31:24Z
dc.date.created2013
dc.date.issued2013
dc.identifier.citationVlachos, E.; Lalos, A.; Berberidis, K. Regularized MMSE ICI equalization for OFDM systems over doubly selective channels. A: IEEE International Symposium on Signal Processing and Information Technology. "IEEE International Symposium on Signal Processing and Information Technology : December 12-16, 2013, Athens, Greece". Atenas: Institute of Electrical and Electronics Engineers (IEEE), 2013, p. 458-463.
dc.identifier.urihttp://hdl.handle.net/2117/24886
dc.description.abstractIn this work, we consider a wireless OFDM system operating over doubly selective channels, where the Doppler effect destroys the orthogonality between subcarriers and hence, results into severe intercarrier interference (ICI). To mitigate this effect, computational demanding equalization schemes that require the inversion of the channel matrix, should be applied. In order to achieve linear complexity in the number of the subcarriers, a banded approximation of the channel matrix is usually adopted, whereas the performance of the equalizer is significantly degraded. To recover this performance loss, we propose a regularized estimation framework for MMSE ICI equalization in the frequency domain, where the complexity remains linear with respect to the number of the subcarriers. Simulation results verify the effectiveness of the proposed regularization.
dc.format.extent6 p.
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
dc.subject.lcshOrthogonal frequency division multiplexing
dc.subject.lcshWireless communication systems
dc.subject.otherComplexity theory
dc.subject.otherEqualizers
dc.titleRegularized MMSE ICI equalization for OFDM systems over doubly selective channels
dc.typeConference report
dc.subject.lemacComunicació sense fil, Sistemes de
dc.identifier.doi10.1109/ISSPIT.2013.6781924
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
drac.iddocument14866774
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorVlachos, E.; Lalos, A.; Berberidis, K.
upcommons.citation.contributorIEEE International Symposium on Signal Processing and Information Technology
upcommons.citation.pubplaceAtenas
upcommons.citation.publishedtrue
upcommons.citation.publicationNameIEEE International Symposium on Signal Processing and Information Technology : December 12-16, 2013, Athens, Greece
upcommons.citation.startingPage458
upcommons.citation.endingPage463


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