Iterative Distortion Cancellation Algorithms for Single-Sideband Systems
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918123051941888 |
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| author | Dong, Jun Bo, Tianwai Wang, Zhuo Gao, Haolei Tan, Zhongwei Dong, Yi |
| author_facet | Dong, Jun Bo, Tianwai Wang, Zhuo Gao, Haolei Tan, Zhongwei Dong, Yi |
| contents | We propose an iterative distortion cancellation algorithm to digitally mitigate the impact of double-sideband dither signal amplitude from the automatic bias control module on Kramers-Kronig receivers without modifying physical layer structures. The algorithm utilizes the KK relation for initial signal decisions and reconstructs the distortion caused by dither signals. Experimental tests in back-to-back showed it improved tolerance to dither amplitudes up to 10% Vπ. For 80-km fiber transmission, the algorithm increased the receiver sensitivity by more than 1 dB, confirming the effectiveness of the proposed distortion cancellation method. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_08796 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Iterative Distortion Cancellation Algorithms for Single-Sideband Systems Dong, Jun Bo, Tianwai Wang, Zhuo Gao, Haolei Tan, Zhongwei Dong, Yi Signal Processing We propose an iterative distortion cancellation algorithm to digitally mitigate the impact of double-sideband dither signal amplitude from the automatic bias control module on Kramers-Kronig receivers without modifying physical layer structures. The algorithm utilizes the KK relation for initial signal decisions and reconstructs the distortion caused by dither signals. Experimental tests in back-to-back showed it improved tolerance to dither amplitudes up to 10% Vπ. For 80-km fiber transmission, the algorithm increased the receiver sensitivity by more than 1 dB, confirming the effectiveness of the proposed distortion cancellation method. |
| title | Iterative Distortion Cancellation Algorithms for Single-Sideband Systems |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2508.08796 |