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A Novel Approach for Turbo Decoding In ISI Channel

by Sanjay Kumar Soni, Puspraj Singh Chauhan, K. Vasudevan
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 41 - Number 5
Year of Publication: 2012
Authors: Sanjay Kumar Soni, Puspraj Singh Chauhan, K. Vasudevan
10.5120/5535-7582

Sanjay Kumar Soni, Puspraj Singh Chauhan, K. Vasudevan . A Novel Approach for Turbo Decoding In ISI Channel. International Journal of Computer Applications. 41, 5 ( March 2012), 7-13. DOI=10.5120/5535-7582

@article{ 10.5120/5535-7582,
author = { Sanjay Kumar Soni, Puspraj Singh Chauhan, K. Vasudevan },
title = { A Novel Approach for Turbo Decoding In ISI Channel },
journal = { International Journal of Computer Applications },
issue_date = { March 2012 },
volume = { 41 },
number = { 5 },
month = { March },
year = { 2012 },
issn = { 0975-8887 },
pages = { 7-13 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume41/number5/5535-7582/ },
doi = { 10.5120/5535-7582 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:28:48.759268+05:30
%A Sanjay Kumar Soni
%A Puspraj Singh Chauhan
%A K. Vasudevan
%T A Novel Approach for Turbo Decoding In ISI Channel
%J International Journal of Computer Applications
%@ 0975-8887
%V 41
%N 5
%P 7-13
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Turbo codes are family of forward error correcting codes, whose performance is near Shannon limit. Turbo decoding is based on the maximum a-posterior algorithm (MAP) algorithm. In this paper, the problem of turbo decoding in ISI channel is studied. A Super-trellis structure method has been presented and modified turbo decoding is suggested. Two methods have been suggested for turbo decoding in ISI channel. In the first method, we take all possible combinations of output of encoder-2 and in method-2, output of each encoder is passed through channel filter independently. Method-2 performs better than method-1 but requires higher bandwidth. The improvement in performance is demonstrated through simulations.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Convolution Code Intersymbol Interferance Isi Channel Iterative Decoding Turbo Code

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