Improved Design and Implementation of Variational Bayesian Iterative Receivers

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dc.contributor.authorModarresi, Mohammad
dc.contributor.authorSadough, Seyed Mohammad-Sajad
dc.coverage.issue3cs
dc.coverage.volume21cs
dc.date.accessioned2015-01-26T07:07:51Z
dc.date.available2015-01-26T07:07:51Z
dc.date.issued2012-09cs
dc.description.abstractIt was recently shown that detection performance can be significantly improved if the statistics of channel estimation errors are available and properly used at the receiver. Although deriving the statistics of channel estimation errors is rather straightforward for pilot-only channel estimation methods, it is not the case for semi-blind receivers such as variational Bayesian (VB) receivers. We have shown in a recent contribution that by a modified formulation of the VB formalism, one can reduce the impact of channel uncertainty on the decoder performance. In this paper, we propose different practical VB receiver implementation techniques that lead to further performance improvement. The adequacy of the proposed receiver design compared to classically-used VB receivers is demonstrated by simulations for orthogonal frequency-division multiplexing (OFDM) systems.en
dc.formattextcs
dc.format.extent838-844cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2012, vol. 21, č. 3, s. 838-844. ISSN 1210-2512cs
dc.identifier.issn1210-2512cs
dc.identifier.urihttp://hdl.handle.net/11012/37180
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2012/12_03_0838_0844.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectVBEM algorithmen
dc.subjectjoint iterative data detection and channel estimationen
dc.subjectchannel estimation errorsen
dc.subjectOFDMen
dc.titleImproved Design and Implementation of Variational Bayesian Iterative Receiversen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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