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
Un schéma de codage à haut débit dans lequel les codes polaires sont concaténés avec des codes de matrice génératrice de faible densité (LDGM) est proposé dans cet article. Le système, appelé codes polaires LDGM (PLG), peut augmenter la vitesse de convergence des codes polaires et éliminer de manière significative le comportement d'erreur des codes LDGM, tout en conservant une faible complexité de codage et de décodage. Avec une approximation gaussienne (GA) judicieusement conçue, nous pouvons prédire avec précision les performances théoriques des codes PLG. Les résultats numériques montrent que les codes PLG ont le potentiel de s’approcher de la limite de capacité et d’éviter efficacement les planchers d’erreur. De plus, la complexité de codage est inférieure à celle du système codé LDPC existant. Cela motive l'application de codes PLG puissants aux communications par satellite dans lesquelles la transmission des messages doit être extrêmement fiable. Par conséquent, un protocole de relais adaptatif (ARP) basé sur les codes PLG pour le système de relais par satellite est proposé. En ARP, la transmission relais est commutée de manière sélective pour correspondre aux conditions du canal, qui sont déterminées par un détecteur d'erreurs. Si aucune erreur n'est détectée, le satellite relais, en coopération avec le satellite source, n'a qu'à transmettre une partie du message décodé au satellite de destination. Il est prouvé que le schéma proposé peut améliorer considérablement les performances de probabilité d’erreur. Les résultats de simulation illustrent les avantages du schéma proposé
Bin DUO
Chengdu University of Technology
Junsong LUO
Chengdu University of Technology
Yong FANG
Chengdu University of Technology
Yong JIA
Chengdu University of Technology
Xiaoling ZHONG
Chengdu University of Technology
Haiyan JIN
University of Electronic Science and Technology of China
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Bin DUO, Junsong LUO, Yong FANG, Yong JIA, Xiaoling ZHONG, Haiyan JIN, "Design of High-Rate Polar-LDGM Codes for Relay Satellite Communications" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 6, pp. 1128-1139, June 2019, doi: 10.1587/transcom.2018EBP3111.
Abstract: A high-rate coding scheme that polar codes are concatenated with low density generator matrix (LDGM) codes is proposed in this paper. The scheme, referred to as polar-LDGM (PLG) codes, can boost the convergence speed of polar codes and eliminate the error floor behavior of LDGM codes significantly, while retaining the low encoding and decoding complexity. With a sensibly designed Gaussian approximation (GA), we can accurately predict the theoretical performance of PLG codes. The numerical results show that PLG codes have the potential to approach the capacity limit and avoid error floors effectively. Moreover, the encoding complexity is lower than the existing LDPC coded system. This motives the application of powerful PLG codes to satellite communications in which message transmission must be extremely reliable. Therefore, an adaptive relaying protocol (ARP) based on PLG codes for the relay satellite system is proposed. In ARP, the relay transmission is selectively switched to match the channel conditions, which are determined by an error detector. If no errors are detected, the relay satellite in cooperation with the source satellite only needs to forward a portion of the decoded message to the destination satellite. It is proved that the proposed scheme can remarkably improve the error probability performance. Simulation results illustrate the advantages of the proposed scheme
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3111/_p
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@ARTICLE{e102-b_6_1128,
author={Bin DUO, Junsong LUO, Yong FANG, Yong JIA, Xiaoling ZHONG, Haiyan JIN, },
journal={IEICE TRANSACTIONS on Communications},
title={Design of High-Rate Polar-LDGM Codes for Relay Satellite Communications},
year={2019},
volume={E102-B},
number={6},
pages={1128-1139},
abstract={A high-rate coding scheme that polar codes are concatenated with low density generator matrix (LDGM) codes is proposed in this paper. The scheme, referred to as polar-LDGM (PLG) codes, can boost the convergence speed of polar codes and eliminate the error floor behavior of LDGM codes significantly, while retaining the low encoding and decoding complexity. With a sensibly designed Gaussian approximation (GA), we can accurately predict the theoretical performance of PLG codes. The numerical results show that PLG codes have the potential to approach the capacity limit and avoid error floors effectively. Moreover, the encoding complexity is lower than the existing LDPC coded system. This motives the application of powerful PLG codes to satellite communications in which message transmission must be extremely reliable. Therefore, an adaptive relaying protocol (ARP) based on PLG codes for the relay satellite system is proposed. In ARP, the relay transmission is selectively switched to match the channel conditions, which are determined by an error detector. If no errors are detected, the relay satellite in cooperation with the source satellite only needs to forward a portion of the decoded message to the destination satellite. It is proved that the proposed scheme can remarkably improve the error probability performance. Simulation results illustrate the advantages of the proposed scheme},
keywords={},
doi={10.1587/transcom.2018EBP3111},
ISSN={1745-1345},
month={June},}
Copier
TY - JOUR
TI - Design of High-Rate Polar-LDGM Codes for Relay Satellite Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 1128
EP - 1139
AU - Bin DUO
AU - Junsong LUO
AU - Yong FANG
AU - Yong JIA
AU - Xiaoling ZHONG
AU - Haiyan JIN
PY - 2019
DO - 10.1587/transcom.2018EBP3111
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2019
AB - A high-rate coding scheme that polar codes are concatenated with low density generator matrix (LDGM) codes is proposed in this paper. The scheme, referred to as polar-LDGM (PLG) codes, can boost the convergence speed of polar codes and eliminate the error floor behavior of LDGM codes significantly, while retaining the low encoding and decoding complexity. With a sensibly designed Gaussian approximation (GA), we can accurately predict the theoretical performance of PLG codes. The numerical results show that PLG codes have the potential to approach the capacity limit and avoid error floors effectively. Moreover, the encoding complexity is lower than the existing LDPC coded system. This motives the application of powerful PLG codes to satellite communications in which message transmission must be extremely reliable. Therefore, an adaptive relaying protocol (ARP) based on PLG codes for the relay satellite system is proposed. In ARP, the relay transmission is selectively switched to match the channel conditions, which are determined by an error detector. If no errors are detected, the relay satellite in cooperation with the source satellite only needs to forward a portion of the decoded message to the destination satellite. It is proved that the proposed scheme can remarkably improve the error probability performance. Simulation results illustrate the advantages of the proposed scheme
ER -