Trellis Analysis of Transmission Burst Errors in Viterbi Decoding

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dc.contributor.authorMrutu, Salehe
dc.contributor.authorSam, Anael
dc.contributor.authorMvungi, Nerey H.
dc.date.accessioned2016-02-17T12:52:47Z
dc.date.available2016-02-17T12:52:47Z
dc.date.issued2014-08
dc.description(IJCSIS) International Journal of Computer Science and Information Security, Vol. 12, No. 8, August 2014, http://sites.google.com/site/ijcsis/ISSN 1947-5500en_US
dc.description.abstractThe Viterbi decoder is the most favorable solution to the problem of decoding codewords from a convolutional encoder. Viterbi decoder performs exceptionally well when a received codewords block contains single or multiple and scattered errors in a received codewords block. However, the formation of burst errors in data transmission due to high transmission speed and the widely varying error conditions of wireless media in fading channel creates decoding challenge for such conditions which result in unbearable amount of residual errors. By using Viterbi decoders’ trellis diagrams, this paper analyses the effects of burst errors to the decoder that lead to residual errors and proposes improvement to the encoding and decoding procedures of the existing (2, 1, 2) binary convolutional encoder. The improved version facilitate effectiveness in the decoder (Viterbi algorithm) in decoding burst errors and hence reduction of residual errors in a poor channel. The proposed enhancements improve the decoder’s operational performance by 75 percent. However, the proposed modification reduces the encoder’s data transmission rate from 1/2 to 1/6.en_US
dc.identifier.citationSalehe I. Mrutu, Anael Sam, Nerey H. Mvungi, I.J. Computer Science and Information Security, Vol. 12, No. 8, August 2014, 46-53en_US
dc.identifier.urihttp://hdl.handle.net/123456789/432
dc.language.isoenen_US
dc.publisherInternational Journal of Computer Science and Information Securityen_US
dc.subjectLocked Convolutional encoderen_US
dc.subjectBust errorsen_US
dc.subjectResidual errorsen_US
dc.subjectNon Transmittable Codewords (NTCs)en_US
dc.subjectViterbi Algorithm Decodingen_US
dc.titleTrellis Analysis of Transmission Burst Errors in Viterbi Decodingen_US
dc.typeJournal Article, Peer Revieweden_US
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