Decoding of Turbo Codes in Symmetric Alpha-Stable Noise

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dc.contributor.authorShafieipour, Mohammad
dc.contributor.authorLim, Heng-Siong
dc.contributor.authorChuah, Teong-Chee
dc.date.accessioned2015-05-14T16:55:22Z
dc.date.available2015-05-14T16:55:22Z
dc.date.issued2011-3-29
dc.date.updated2015-03-29T13:37:57Z
dc.description.abstractThis paper investigates the decoding of turbo codes in impulsive symmetric α-stable (SαS) noise. Due to the nonexistence of a closed-form expression for the probability density function (pdf) of α-stable processes, numerical-based SαS pdf is used to derive branch transition probability (btp) for the maximum a posteriori turbo decoder. Results show that in Gaussian noise, the turbo decoder achieves similar performance using both the conventional and the proposed btps, but in impulsive channels, the turbo decoder with the proposed btp substantially outperforms the turbo decoder utilizing the conventional btp. Results also confirm that the turbo decoder incorporating the proposed btp outperforms the existing Cauchy-based turbo decoder in non-Cauchy impulsive noise, while the two decoders accomplish similar performance in Cauchy noise.
dc.description.versionPeer Reviewed
dc.identifier.citationMohammad Shafieipour, Heng-Siong Lim, and Teong-Chee Chuah, “Decoding of Turbo Codes in Symmetric Alpha-Stable Noise,” ISRN Signal Processing, vol. 2011, Article ID 683972, 7 pages, 2011. doi:10.5402/2011/683972
dc.identifier.urihttp://dx.doi.org/10.5402/2011/683972
dc.identifier.urihttp://hdl.handle.net/1993/30520
dc.language.rfc3066en
dc.rightsopen accessen_US
dc.rights.holderCopyright © 2011 Mohammad Shafieipour et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleDecoding of Turbo Codes in Symmetric Alpha-Stable Noise
dc.typeJournal Article
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