Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909437370826752 |
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| author | Shen, Li Wu, Yongpeng Xu, Yin You, Xiaohu Gao, Xiqi Zhang, Wenjun |
| author_facet | Shen, Li Wu, Yongpeng Xu, Yin You, Xiaohu Gao, Xiqi Zhang, Wenjun |
| contents | The soft-output successive cancellation list (SOSCL) decoder provides a methodology for estimating the a-posteriori probability log-likelihood ratios by only leveraging the conventional SCL decoder for polar codes. However, the sequential nature of SCL decoding leads to a high decoding latency for the SO-SCL decoder. In this paper, we propose a soft-output fast SCL (SO-FSCL) decoder by incorporating node-based fast decoding into the SO-SCL framework. Simulation results demonstrate that the proposed SO-FSCL decoder significantly reduces the decoding latency without loss of performance compared with the SO-SCL decoder. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_15071 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes Shen, Li Wu, Yongpeng Xu, Yin You, Xiaohu Gao, Xiqi Zhang, Wenjun Information Theory The soft-output successive cancellation list (SOSCL) decoder provides a methodology for estimating the a-posteriori probability log-likelihood ratios by only leveraging the conventional SCL decoder for polar codes. However, the sequential nature of SCL decoding leads to a high decoding latency for the SO-SCL decoder. In this paper, we propose a soft-output fast SCL (SO-FSCL) decoder by incorporating node-based fast decoding into the SO-SCL framework. Simulation results demonstrate that the proposed SO-FSCL decoder significantly reduces the decoding latency without loss of performance compared with the SO-SCL decoder. |
| title | Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes |
| topic | Information Theory |
| url | https://arxiv.org/abs/2410.15071 |