Iterative Distortion Cancellation Algorithms for Single-Sideband Systems
Signal Processing
2025-08-13 v1
Abstract
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% V{\pi}. 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.
Keywords
Cite
@article{arxiv.2508.08796,
title = {Iterative Distortion Cancellation Algorithms for Single-Sideband Systems},
author = {Jun Dong and Tianwai Bo and Zhuo Wang and Haolei Gao and Zhongwei Tan and Yi Dong},
journal= {arXiv preprint arXiv:2508.08796},
year = {2025}
}