Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability
In this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel. In contrast to the conventional threshold metric, the MOP predicts the frame error rate (FER) performance a...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | ICT Express |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405959525000335 |
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| author | Woong-Shin Kwak Jae-Won Kim |
| author_facet | Woong-Shin Kwak Jae-Won Kim |
| author_sort | Woong-Shin Kwak |
| collection | DOAJ |
| description | In this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel. In contrast to the conventional threshold metric, the MOP predicts the frame error rate (FER) performance accurately over the fading channel. Based on MOPs, we optimize protograph-based LDPC codes while considering the trade-off between accuracy and computational complexity. It is shown that the optimized LDPC codes outperform the conventional threshold-based LDPC codes at the FER of 10−4 for the both medium and high code-rate regions. |
| format | Article |
| id | doaj-art-3ee09681d858474ea1a7da2d15cbfbdd |
| institution | Kabale University |
| issn | 2405-9595 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | ICT Express |
| spelling | doaj-art-3ee09681d858474ea1a7da2d15cbfbdd2025-08-20T03:31:07ZengElsevierICT Express2405-95952025-06-0111344244710.1016/j.icte.2025.03.005Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probabilityWoong-Shin Kwak0Jae-Won Kim1Department of Electronic Engineering, Engineering Research Institute (ERI), Gyeongsang National University, Jinju 52828, South KoreaCorresponding author.; Department of Electronic Engineering, Engineering Research Institute (ERI), Gyeongsang National University, Jinju 52828, South KoreaIn this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel. In contrast to the conventional threshold metric, the MOP predicts the frame error rate (FER) performance accurately over the fading channel. Based on MOPs, we optimize protograph-based LDPC codes while considering the trade-off between accuracy and computational complexity. It is shown that the optimized LDPC codes outperform the conventional threshold-based LDPC codes at the FER of 10−4 for the both medium and high code-rate regions.http://www.sciencedirect.com/science/article/pii/S2405959525000335Modified outage probability (MOP)Non-uniform channelProtograph-based low-density parity-check (LDPC) codeUncorrelated Rayleigh fading channel |
| spellingShingle | Woong-Shin Kwak Jae-Won Kim Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability ICT Express Modified outage probability (MOP) Non-uniform channel Protograph-based low-density parity-check (LDPC) code Uncorrelated Rayleigh fading channel |
| title | Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability |
| title_full | Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability |
| title_fullStr | Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability |
| title_full_unstemmed | Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability |
| title_short | Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability |
| title_sort | design of ldpc code for uncorrelated rayleigh fading channel using modified outage probability |
| topic | Modified outage probability (MOP) Non-uniform channel Protograph-based low-density parity-check (LDPC) code Uncorrelated Rayleigh fading channel |
| url | http://www.sciencedirect.com/science/article/pii/S2405959525000335 |
| work_keys_str_mv | AT woongshinkwak designofldpccodeforuncorrelatedrayleighfadingchannelusingmodifiedoutageprobability AT jaewonkim designofldpccodeforuncorrelatedrayleighfadingchannelusingmodifiedoutageprobability |