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Assessment of Non Transmittable Codewords Enhancement to Viterbi Algorithm Decoding

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dc.creator Mrutu, Salehe
dc.creator Sam, Anael
dc.creator Mvungi, Nerey H.
dc.date 2016-02-20T12:04:16Z
dc.date 2016-02-20T12:04:16Z
dc.date 2014
dc.date.accessioned 2018-04-18T11:49:48Z
dc.date.available 2018-04-18T11:49:48Z
dc.identifier S.H. Mrutu, A. Sam, N.H. Mvungi, Assessment of Non Transmittable Codewords Enhancement to Viterbi Algorithm Decoding, (IJCSIS) International Journal of Computer Science and Information Security, Vol. 12, No. 9, September 2014, pp13-18
dc.identifier http://hdl.handle.net/123456789/472
dc.identifier.uri http://hdl.handle.net/123456789/10196
dc.description (IJCSIS) International Journal of Computer Science and Information Security, Vol. 12, No. 9, September 2014 http://sites.google.com/site/ijcsis/ ISSN 1947-5500
dc.description Researchers have shown that practical mobile communication channels introduce errors that are concentrated in a certain locality rather than random errors. These are burst errors caused by deep fading of the wireless channel or a lightning strike. The existing Viterbi Algorithm (VA) capable of correcting random errors is inefficient in correcting burst errors and therefore resulting in unacceptable amount of residual errors. This paper presents an assessment of Non- Transmittable Codewords (NTCs) enhancement technique to VA in decoding the received signals subjected to burst errors that may occur in poor channels. A hard decision, 1/2 rate and constraint length K is equal to 3 Viterbi Algorithm decoding technique, Binary Phase- Shift Keying (BPSK) and Additional White Gaussian Noise (AWGN) are components used in MATLAB software based simulation when assessing the proposed technique. Applying 6NTCs to VA decoder enables the decoder to reduce 83.7 percent of its residual errors. However, the technique reduces the encoder’s data transmission rate from 1/2 to 1/6.
dc.language en
dc.publisher International Journal of Computer Science and Information Security
dc.subject Locked Convolutional encoder
dc.subject Bust errors
dc.subject Residual errors
dc.subject Non-Transmittable Codewords (NTCs)
dc.subject Viterbi Algorism Decoding
dc.subject Data Interleaver
dc.title Assessment of Non Transmittable Codewords Enhancement to Viterbi Algorithm Decoding
dc.type Journal Article, Peer Reviewed


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