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dc.rights.licenseAttribution 4.0 International*
dc.contributor.authorOtxandiano Kanpo, Pello
dc.contributor.authorMendicute, Mikel
dc.contributor.authorMartínez Jiménez, Lorena
dc.contributor.authorSOBRON POLANCOS, IKER
dc.contributor.otherWymeersch, H..
dc.date.accessioned2020-06-12T11:15:33Z
dc.date.available2020-06-12T11:15:33Z
dc.date.issued2012
dc.identifier.issn1687-1499en
dc.identifier.urihttps://hdl.handle.net/20.500.11984/1689
dc.description.abstractIn this article, a novel detector design is proposed for orthogonal frequency division multiplexing (OFDM) systems over frequency selective and time varying channels. Namely, we focus on systems with large OFDM symbol lengths where design and complexity constraints have to be taken into account and many of the existing ICI reduction techniques can not be applied. We propose a factor graph (FG) based approach for maximum a posteriori (MAP) symbol detection which exploits the frequency diversity introduced by the ICI in the OFDM symbol. The proposed algorithm provides high diversity orders allowing to outperform the free-ICI performance in high-mobility scenarios with an inherent parallel structure suitable for large OFDM block sizes. The performance of the mentioned near-optimal detection strategy is analyzed over a general bit-interleaved coded modulation (BICM) system applying low-density parity-check (LDPC) codes. The inclusion of pilot symbols is also considered in order to analyze how they assist the detection process.en
dc.language.isoengen
dc.publisherSpringeren
dc.rights© 2012 Ochandiano et al.; licensee Springer.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFactor graphen
dc.subjectSum-product algorithmen
dc.subjectOFDM Doppleren
dc.subjectIntercarrier interferenceen
dc.titleFactor graph based detection approach for high-mobility OFDM systems with large FFT modesen
dcterms.accessRightshttp://purl.org/coar/access_right/c_abf2en
dcterms.sourceEURASIP Journal on Wireless Communications and Networkingen
local.contributor.groupTeoría de la señal y comunicacioneses
local.description.peerreviewedtrueen
local.identifier.doihttp://dx.doi.org/10.1186/1687-1499-2012-331en
local.rights.publicationfeeAPC
local.rights.publicationfeeamount1200 EUR
local.contributor.otherinstitutionhttps://ror.org/040wg7k59es
local.source.detailsNº. 331, 2012eu_ES
oaire.format.mimetypeapplication/pdf
oaire.file$DSPACE\assetstore
oaire.resourceTypehttp://purl.org/coar/resource_type/c_6501en
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85en


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International