关于仿射频率分割复用方案的噪声鲁棒性：分析与应用
信号处理
2025-10-07 v1
摘要
本文考察了仿射频率分割复用 (AFDM) 和正交时频空间 (OTFS) 调制方案对非白高斯噪声的鲁棒性——这可以建模为接收信号的各种添加扰动源。该方法的提出方式表明，这些波形的性能取决于解调矩阵能够消除噪声的能力——这一属性反过来与矩阵稀疏性相关。证明 AFDM 在噪声条件下优于 OTFS 和正交频率分复用 (OFDM)，因为其解调矩阵通常不如其他波形稀疏。基于此分析， presenting several application examples and use cases, such as the use of AFDM and OTFS in narrowband signals or in coexistence with OFDM signals. Finally, simulation results confirm that AFDM achieves better performance than OTFS and OFDM in the presence of non-white noise, with gains exceeding 1 dB in most application scenarios.
引用
@article{arxiv.2510.03901,
title = {On the Noise Robustness of Affine Frequency Division Multiplexing: Analysis and Applications},
author = {Vincent Savaux and Steve Sawadogo and Hyeon Seok Rou and Giuseppe Thadeu Freitas de Abreu},
journal= {arXiv preprint arXiv:2510.03901},
year = {2025}
}
备注
9 pages, 5 figures, conference