Optimized LNS-FAID of LDPC codes: a hybrid precision decoding approach for 50G-PON
Efficient error correction in high-speed communication networks, such as the 50G passive optical network (50G-PON), is paramount. This Letter focuses on optimizing a layered non-surjective finite alphabet iterative decoder (LNS-FAID) for 50G-PON, with an emphasis on high-throughput and low-power con...
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| Veröffentlicht in: | Optics letters 2024-04, Vol.49 (7), p.1700-1703 |
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| creator | Lyu, Yanchen Jiang, Ming Zhu, Mingyang Zhong, Xinyu Zhao, Chunming |
| description | Efficient error correction in high-speed communication networks, such as the 50G passive optical network (50G-PON), is paramount. This Letter focuses on optimizing a layered non-surjective finite alphabet iterative decoder (LNS-FAID) for 50G-PON, with an emphasis on high-throughput and low-power consumption. We propose using a distinct lookup table (LUT) for each iteration to enhance decoding performance and lower error floors. Additionally, we improve the 2-bit LNS-FAID architecture by adding operational states and a sign backtracking (SBT) strategy. This paper also introduces a hybrid precision model that merges 3-bit and 2-bit LNS-FAIDs, which balances error correction with computational efficiency. Our simulation results show that these approaches significantly improve the performance of the LDPC code in 50G-PON. |
| doi_str_mv | 10.1364/OL.520880 |
| format | Article |
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This Letter focuses on optimizing a layered non-surjective finite alphabet iterative decoder (LNS-FAID) for 50G-PON, with an emphasis on high-throughput and low-power consumption. We propose using a distinct lookup table (LUT) for each iteration to enhance decoding performance and lower error floors. Additionally, we improve the 2-bit LNS-FAID architecture by adding operational states and a sign backtracking (SBT) strategy. This paper also introduces a hybrid precision model that merges 3-bit and 2-bit LNS-FAIDs, which balances error correction with computational efficiency. 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| source | Optica Publishing Group Journals |
| subjects | Communication networks Decoding Error correcting codes Error correction Lookup tables Optical communication Performance enhancement Power consumption |
| title | Optimized LNS-FAID of LDPC codes: a hybrid precision decoding approach for 50G-PON |
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