The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dans cette lettre, une nouvelle approximation du rapport de vraisemblance (LLR) pour le décodage logiciel des canaux d'entrée est proposée. Le LLR simplifié conventionnel utilisant l'approximation de la somme logarithmique peut dégrader les performances des systèmes de modulation codée à bits entrelacés (BICM) utilisant une demande de répétition automatique hybride (HARQ) à faible SNR. Le LLR proposé fonctionne aussi bien que le LLR exact, et en même temps, ne nécessite qu'un petit nombre d'opérations élémentaires.
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Jin Whan KANG, Sang-Hyo KIM, Seokho YOON, Tae Hee HAN, Hyoung Kee CHOI, "A New LLR Approximation for BICM Systems with HARQ" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 6, pp. 1628-1632, June 2010, doi: 10.1587/transcom.E93.B.1628.
Abstract: In this letter, a new approximation of log-likelihood ratio (LLR) for soft input channel decoding is proposed. Conventional simplified LLR using log-sum approximation can degrade the performance of bit interleaved coded modulation (BICM) systems employing hybrid automatic repeat request (HARQ) at low SNR. The proposed LLR performs as well as the exact LLR, and at the same time, requires only a small number of elementary operations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1628/_p
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@ARTICLE{e93-b_6_1628,
author={Jin Whan KANG, Sang-Hyo KIM, Seokho YOON, Tae Hee HAN, Hyoung Kee CHOI, },
journal={IEICE TRANSACTIONS on Communications},
title={A New LLR Approximation for BICM Systems with HARQ},
year={2010},
volume={E93-B},
number={6},
pages={1628-1632},
abstract={In this letter, a new approximation of log-likelihood ratio (LLR) for soft input channel decoding is proposed. Conventional simplified LLR using log-sum approximation can degrade the performance of bit interleaved coded modulation (BICM) systems employing hybrid automatic repeat request (HARQ) at low SNR. The proposed LLR performs as well as the exact LLR, and at the same time, requires only a small number of elementary operations.},
keywords={},
doi={10.1587/transcom.E93.B.1628},
ISSN={1745-1345},
month={June},}
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TY - JOUR
TI - A New LLR Approximation for BICM Systems with HARQ
T2 - IEICE TRANSACTIONS on Communications
SP - 1628
EP - 1632
AU - Jin Whan KANG
AU - Sang-Hyo KIM
AU - Seokho YOON
AU - Tae Hee HAN
AU - Hyoung Kee CHOI
PY - 2010
DO - 10.1587/transcom.E93.B.1628
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2010
AB - In this letter, a new approximation of log-likelihood ratio (LLR) for soft input channel decoding is proposed. Conventional simplified LLR using log-sum approximation can degrade the performance of bit interleaved coded modulation (BICM) systems employing hybrid automatic repeat request (HARQ) at low SNR. The proposed LLR performs as well as the exact LLR, and at the same time, requires only a small number of elementary operations.
ER -