Open AccessPerformance of Hybrid Binary and Non-Binary Turbo Decoding Schemes for LTE and DVB-RCS Standards
Author(s) -
Yogesh Beeharry,
Tulsi Pawan Fowdur,
K. M. S. Soyjaudah
Publication year - 2019
Publication title -
ecti transactions on electrical engineering electronics and communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.148
H-Index - 7
ISSN - 1685-9545
DOI - 10.37936/ecti-eec.2019171.215363
Subject(s) - turbo code , turbo equalizer , computer science , serial concatenated convolutional codes , algorithm , qam , quadrature amplitude modulation , low density parity check code , decoding methods , binary number , concatenated error correction code , bit error rate , mathematics , block code , error floor , arithmetic
Binary and Non-Binary Turbo codes have been deployed in several digital communication standards to perform error correction. In order to enhance their error performance, several schemes such as Joint Source Channel Decoding (JSCD), extrinsic information scaling mechanisms, and prioritized QAM constellation mapping have been proposed for improving the error performance of error correcting codes. In this paper, hybrid schemes comprising of JSCD, regression based extrinsic information scaling, and prioritized 16-Quadrature Amplitude Modulation (QAM) with binary and non-binary Turbo codes have been presented. Significant improvement in error performance has been observed with the proposed scheme as compared to the conventional one. The hybrid scheme in the case of binary symmetric and asymmetric LTE Turbo codes, and triple binary Turbo codes outperform the conventional scheme by 0.8 dB on average. With duo-binary Turbo codes for the DVB-RCS standard, the hybrid scheme outperforms the conventional one with an average gain of 0.9 dB in BER performance.
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