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Reseach Article

Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel

by Salehe I Mrutu, Anael Sam, Nerey H. Mvungi
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 106 - Number 7
Year of Publication: 2014
Authors: Salehe I Mrutu, Anael Sam, Nerey H. Mvungi
10.5120/18534-9744

Salehe I Mrutu, Anael Sam, Nerey H. Mvungi . Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel. International Journal of Computer Applications. 106, 7 ( November 2014), 29-34. DOI=10.5120/18534-9744

@article{ 10.5120/18534-9744,
author = { Salehe I Mrutu, Anael Sam, Nerey H. Mvungi },
title = { Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel },
journal = { International Journal of Computer Applications },
issue_date = { November 2014 },
volume = { 106 },
number = { 7 },
month = { November },
year = { 2014 },
issn = { 0975-8887 },
pages = { 29-34 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume106/number7/18534-9744/ },
doi = { 10.5120/18534-9744 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:38:47.480495+05:30
%A Salehe I Mrutu
%A Anael Sam
%A Nerey H. Mvungi
%T Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel
%J International Journal of Computer Applications
%@ 0975-8887
%V 106
%N 7
%P 29-34
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Communication over wireless media is vulnerable to distortion by noise. Therefore, the application of error control mechanism is necessary to minimize the Bit Error Rate (BER). It is proposed to use locked binary convolutional code with Non-Transmittable codewords to enhance Viterbi Algorithm decoders; as one of the forward error correction mechanisms. The proposed enhancement empowers Viterbi algorithm decoders to reduce one of its inherent limitations of residual errors due to burst errors. This paper evaluates the performance of the locked (2, 1, 2) binary convolutional code with Non-Transmittable codewords enhancement technique over flat and slow Rayleigh Fading channel using a MATLAB software simulation. Simulation result shows 80. 92 percent reduction of residual errors when 6 Non-Transmittable Codewords were applied to Viterbi Algorithm (VA) decoding. On the other hand, the technique lowers the encoder's data transmission rate from 1/2 to 1/6.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Locked Convolutional encoder Bust errors Residual errors Non Transmittable Codewords (NTCs) Viterbi Algorithm Decoding Rayleigh Fading Channel