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dc.contributor.authorRey Micolau, Francesc
dc.contributor.authorLamarca Orozco, M. Meritxell
dc.contributor.authorVázquez Grau, Gregorio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2008-01-17T11:54:34Z
dc.date.available2008-01-17T11:54:34Z
dc.date.created2005-03-31
dc.date.issued2005-03-31
dc.identifier.citationRey, F.; Lamarca, M.; Vázquez, G. Robust power allocation algorithms for MIMO OFDM systems with imperfect CSI. IEEE Transactions on Signal Processing 2005, vol. 53, núm.3, p. 1070-1085.
dc.identifier.issn1053-587X
dc.identifier.urihttp://hdl.handle.net/2117/1494
dc.description.abstractThis paper presents a Bayesian approach to the design of transmit prefiltering matrices in closed-loop schemes robust to channel estimation errors. The algorithms are derived for a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. Two different optimization criteria are analyzed: the minimization of the mean square error and the minimization of the bit error rate. In both cases, the transmitter design is based on the singular value decomposition (SVD) of the conditional mean of the channel response, given the channel estimate. The performance of the proposed algorithms is analyzed, and their relationship with existing algorithms is indicated. As with other previously proposed solutions, the minimum bit error rate algorithm converges to the open-loop transmission scheme for very poor CSI estimates.
dc.format.extent1070-1085
dc.language.isoeng
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
dc.subject.lcshMIMO systems
dc.subject.otherBayes methods
dc.subject.otherChannel estimation error
dc.subject.otherClosed loop systems
dc.subject.otherError statistics
dc.subject.otherMatrix algebra
dc.subject.otherMean square error methods
dc.subject.otherMIMO systems
dc.subject.otherOFDM modulation
dc.subject.otherOptimisation
dc.subject.otherSingular value decomposition
dc.subject.otherRobust power allocation algorithm
dc.subject.otherOFDM system
dc.subject.otherImperfect CSI
dc.subject.otherBayesian approach
dc.subject.otherPrefiltering matrix
dc.subject.otherClosed-loop scheme
dc.subject.otherBit error rate algorithm
dc.subject.otherOpen-loop transmission scheme
dc.subject.otherChannel state information
dc.subject.otherFading channel
dc.subject.otherTransceiver optimization
dc.subject.otherWireless communication
dc.subject.otherBER
dc.subject.otherMIMO Channels
dc.subject.otherPower allocations
dc.subject.otherFeedback
dc.subject.otherDiversity
dc.subject.otherJoint transceiver optimization
dc.subject.otherLinear precoding
dc.subject.otherSVD
dc.titleRobust power allocation algorithms for MIMO OFDM systems with imperfect CSI
dc.typeArticle
dc.subject.lemacMIMO systems
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.relation.projectidcttTIC2003-05482
dc.relation.projectidcttTIC2004-04526
dc.relation.projectidctt2001SGR-00268
local.personalitzacitaciotrue


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