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dc.contributor.authorVigelis, Rui Facundo-
dc.contributor.authorCavalcante, Charles Casimiro-
dc.date.accessioned2012-12-07T14:19:54Z-
dc.date.available2012-12-07T14:19:54Z-
dc.date.issued2007-
dc.identifier.citationVIGELIS, R. F. ; CAVALCANTE, C. C. A QR factorization based algorithm for pilot assisted channel estimation in OFDM systems. In: INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH. AND SIGNAL PROCESSING, 32., 2007, Honolulu. Anais... Honolulu: ICASSP, 2007. p. 305-308pt_BR
dc.identifier.urihttp://www.repositorio.ufc.br/handle/riufc/4111-
dc.description.abstractThis paper deals with the pilot assisted time-varying channel estimation in orthogonal frequency division multiplexing (OFDM) systems. Since the pilot sub-carrier correlations are rank deficient, an estimation scheme can be implemented by discarding the noise subspace components and filtering the subspace components. The subspace can be estimated by some subspace tracking (ST) algorithm. We propose to implement the subspace components filtering via a QR factorization based algorithm, which is suitable for operating in conjunction with the ST algorithm. The performance of the proposed schemes is verified by simulation in computer.pt_BR
dc.language.isoenpt_BR
dc.publisherInternational Conference on Acoustics, Speech, and Signal Processingpt_BR
dc.subjectTeleinformáticapt_BR
dc.subjectMultiplexaçãopt_BR
dc.titleA QR factorization based algorithm for pilot assisted channel estimation in OFDM systemspt_BR
dc.typeArtigo de Eventopt_BR
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