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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
FEC(순방향 오류 수정) 방식은 IM/DD(강도 변조 직접 감지) VLC(가시광 통신) 시스템에서 중요한 역할을 수행해 왔습니다. 경판정 FEC 방식은 연판정 FEC 코드에 비해 디코딩 성능이 떨어지지만, 수신기에서는 논리값 0과 1만 인식할 수 있기 때문에 이러한 VLC 시스템에서 널리 사용됩니다. 계산하다 로그 우도 비율 (LLR) 연판정 FEC 디코더의 입력으로 사용되는 값입니다. 시뮬레이션 결과는 제안한 방법을 사용한 Polar 디코더가 경판정 기법을 사용한 것보다 더 나은 성능을 보인다는 것을 보여줍니다.
Dinh-Dung LE
Nara Institute of Science and Technology
Duc-Phuc NGUYEN
Nara Institute of Science and Technology
Thi-Hong TRAN
Nara Institute of Science and Technology
Yasuhiko NAKASHIMA
Nara Institute of Science and Technology
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Dinh-Dung LE, Duc-Phuc NGUYEN, Thi-Hong TRAN, Yasuhiko NAKASHIMA, "Log-Likelihood Ratio Calculation Using 3-Bit Soft-Decision for Error Correction in Visible Light Communication Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E101-A, no. 12, pp. 2210-2212, December 2018, doi: 10.1587/transfun.E101.A.2210.
Abstract: Forward Error Correction (FEC) schemes have played an important role in intensity-modulation direct-detection (IM/DD) Visible Light Communication (VLC) systems. While hard-decision FEC schemes are inferior to soft-decision FEC codes in terms of decoding performance, they are widely used in these VLC systems because receivers are only capable of recognizing logical values 0 and 1. In this letter, we propose a method to calculate the log-likelihood ratios (LLR) values which are used as input of soft-decision FEC decoders. Simulation results show that Polar decoder using proposed method performs better than that of using the hard-decision technique.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E101.A.2210/_p
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@ARTICLE{e101-a_12_2210,
author={Dinh-Dung LE, Duc-Phuc NGUYEN, Thi-Hong TRAN, Yasuhiko NAKASHIMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Log-Likelihood Ratio Calculation Using 3-Bit Soft-Decision for Error Correction in Visible Light Communication Systems},
year={2018},
volume={E101-A},
number={12},
pages={2210-2212},
abstract={Forward Error Correction (FEC) schemes have played an important role in intensity-modulation direct-detection (IM/DD) Visible Light Communication (VLC) systems. While hard-decision FEC schemes are inferior to soft-decision FEC codes in terms of decoding performance, they are widely used in these VLC systems because receivers are only capable of recognizing logical values 0 and 1. In this letter, we propose a method to calculate the log-likelihood ratios (LLR) values which are used as input of soft-decision FEC decoders. Simulation results show that Polar decoder using proposed method performs better than that of using the hard-decision technique.},
keywords={},
doi={10.1587/transfun.E101.A.2210},
ISSN={1745-1337},
month={December},}
부
TY - JOUR
TI - Log-Likelihood Ratio Calculation Using 3-Bit Soft-Decision for Error Correction in Visible Light Communication Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2210
EP - 2212
AU - Dinh-Dung LE
AU - Duc-Phuc NGUYEN
AU - Thi-Hong TRAN
AU - Yasuhiko NAKASHIMA
PY - 2018
DO - 10.1587/transfun.E101.A.2210
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E101-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2018
AB - Forward Error Correction (FEC) schemes have played an important role in intensity-modulation direct-detection (IM/DD) Visible Light Communication (VLC) systems. While hard-decision FEC schemes are inferior to soft-decision FEC codes in terms of decoding performance, they are widely used in these VLC systems because receivers are only capable of recognizing logical values 0 and 1. In this letter, we propose a method to calculate the log-likelihood ratios (LLR) values which are used as input of soft-decision FEC decoders. Simulation results show that Polar decoder using proposed method performs better than that of using the hard-decision technique.
ER -