Stitched Polar Codes
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
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| _version_ | 1866911283893239808 |
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| author | Li, Yuan Ye, Zicheng Zhang, Huazi Wang, Jun Tong, Wen Yan, Guiying Ma, Zhiming |
| author_facet | Li, Yuan Ye, Zicheng Zhang, Huazi Wang, Jun Tong, Wen Yan, Guiying Ma, Zhiming |
| contents | In this paper, we introduce stitched polar codes, a novel generalization of Arıkan's regular polar codes. Our core methodology reconfigures the fundamental polarization process by stitching additional structures to enhance the reliability of less reliable information bits in the original code. This approach preserves the polar transformation structure and maintains the same encoding and decoding complexity. Thanks to the flexible configuration, stitched polar codes consistently outperform regular polar codes, effectively solving the performance degradation issue in rate-matched scenarios. Furthermore, we provide theoretical analysis on the weight spectrum and the polarization speed of stitched polar codes to prove their superiority. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_19249 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Stitched Polar Codes Li, Yuan Ye, Zicheng Zhang, Huazi Wang, Jun Tong, Wen Yan, Guiying Ma, Zhiming Information Theory In this paper, we introduce stitched polar codes, a novel generalization of Arıkan's regular polar codes. Our core methodology reconfigures the fundamental polarization process by stitching additional structures to enhance the reliability of less reliable information bits in the original code. This approach preserves the polar transformation structure and maintains the same encoding and decoding complexity. Thanks to the flexible configuration, stitched polar codes consistently outperform regular polar codes, effectively solving the performance degradation issue in rate-matched scenarios. Furthermore, we provide theoretical analysis on the weight spectrum and the polarization speed of stitched polar codes to prove their superiority. |
| title | Stitched Polar Codes |
| topic | Information Theory |
| url | https://arxiv.org/abs/2511.19249 |