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Design of soft viterbi algorithm decoder enhanced with non-transmittable codewords for storage media

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dc.contributor.author Hassan, Kilavo
dc.contributor.author Michael, Kisangiri
dc.contributor.author Mrutu, Salehe I.
dc.date.accessioned 2019-05-22T12:35:22Z
dc.date.available 2019-05-22T12:35:22Z
dc.date.issued 2017-02
dc.identifier.uri DOI : 10.5121/ijcsea.2017.7101
dc.identifier.uri http://dspace.nm-aist.ac.tz/handle/123456789/160
dc.description Research Article published by International Journal of Computer Science, Engineering and Applications (IJCSEA) Vol. 7, No. 1, February 2017 en_US
dc.description.abstract Viterbi Algorithm Decoder Enhanced with Non-transmittable Codewords is one of the best decoding algorithm which effectively improves forward error correction performance. HoweverViterbi decoder enhanced with NTCs is not yet designed to work in storage media devices. Currently Reed Solomon (RS) Algorithm is almost the dominant algorithm used in correcting error in storage media. Conversely, recent studies show that there still exist low reliability of data in storage media while the demand for storage media increases drastically. This study proposes a design of the Soft Viterbi Algorithm decoder enhanced with Non-transmittable Codewords (SVAD-NTCs) to be used in storage media for error correction. Matlab simulation was used in this design in order to investigate behavior and effectiveness of SVAD-NTCs in correcting errors in data retrieving from storage media.Sample data of one million bits are randomly generated, Additive White Gaussian Noise (AWGN) was used as data distortion model and Binary Phase- Shift Keying (BPSK) was applied for simulation modulation. Results show that,behaviors of SVAD-NTC performance increase as you increase the NTCs, but beyond 6NTCs there is no significant change and SVAD-NTCs design drastically reduce the total residual error from 216,878 of Reed Solomon to 23,900. en_US
dc.language.iso en_US en_US
dc.publisher International Journal of Computer Science, Engineering and Applications (IJCSEA) en_US
dc.subject Soft decision en_US
dc.subject SVAD-NTCs en_US
dc.title Design of soft viterbi algorithm decoder enhanced with non-transmittable codewords for storage media en_US
dc.title.alternative Design of soft viterbi algorithm decoder enhanced with non-transmittable codewords for storage media en_US
dc.type Article en_US


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