EXIT Charts for Low-Density Algebra-Check Codes
This paper focuses on the Low-Density Algebra-Check (LDAC) code, a novel low-rate channel code derived from the Low-Density Parity-Check (LDPC) code with expanded algebra-check constraints. A method for optimizing LDAC code design using Extrinsic Information Transfer (EXIT) charts is presented. Firs...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/1099-4300/26/12/1118 |
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| author | Zuo Tang Jing Lei Ying Huang |
| author_facet | Zuo Tang Jing Lei Ying Huang |
| author_sort | Zuo Tang |
| collection | DOAJ |
| description | This paper focuses on the Low-Density Algebra-Check (LDAC) code, a novel low-rate channel code derived from the Low-Density Parity-Check (LDPC) code with expanded algebra-check constraints. A method for optimizing LDAC code design using Extrinsic Information Transfer (EXIT) charts is presented. Firstly, an iterative decoding model for LDAC is established according to its structure, and a method for plotting EXIT curves of the algebra-check node decoder is proposed. Then, the performance of two types of algebra-check nodes under different conditions is analyzed via EXIT curves. Finally, a low-rate LDAC code with enhanced coding gain is constructed, demonstrating the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-e4f2327a82ca4086b65ded21e11d3e5f |
| institution | OA Journals |
| issn | 1099-4300 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-e4f2327a82ca4086b65ded21e11d3e5f2025-08-20T02:00:27ZengMDPI AGEntropy1099-43002024-12-012612111810.3390/e26121118EXIT Charts for Low-Density Algebra-Check CodesZuo Tang0Jing Lei1Ying Huang2College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaThis paper focuses on the Low-Density Algebra-Check (LDAC) code, a novel low-rate channel code derived from the Low-Density Parity-Check (LDPC) code with expanded algebra-check constraints. A method for optimizing LDAC code design using Extrinsic Information Transfer (EXIT) charts is presented. Firstly, an iterative decoding model for LDAC is established according to its structure, and a method for plotting EXIT curves of the algebra-check node decoder is proposed. Then, the performance of two types of algebra-check nodes under different conditions is analyzed via EXIT curves. Finally, a low-rate LDAC code with enhanced coding gain is constructed, demonstrating the effectiveness of the proposed method.https://www.mdpi.com/1099-4300/26/12/1118EXITLDACLDPCCNDalgebraic codesiterative decoder |
| spellingShingle | Zuo Tang Jing Lei Ying Huang EXIT Charts for Low-Density Algebra-Check Codes Entropy EXIT LDAC LDPC CND algebraic codes iterative decoder |
| title | EXIT Charts for Low-Density Algebra-Check Codes |
| title_full | EXIT Charts for Low-Density Algebra-Check Codes |
| title_fullStr | EXIT Charts for Low-Density Algebra-Check Codes |
| title_full_unstemmed | EXIT Charts for Low-Density Algebra-Check Codes |
| title_short | EXIT Charts for Low-Density Algebra-Check Codes |
| title_sort | exit charts for low density algebra check codes |
| topic | EXIT LDAC LDPC CND algebraic codes iterative decoder |
| url | https://www.mdpi.com/1099-4300/26/12/1118 |
| work_keys_str_mv | AT zuotang exitchartsforlowdensityalgebracheckcodes AT jinglei exitchartsforlowdensityalgebracheckcodes AT yinghuang exitchartsforlowdensityalgebracheckcodes |