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基于序列对序列框架的快速和准确的波形建模,用于多通道和高速光纤传输

Minghui Shi, Zekun Niu, Hang Yang

|April 1, 2025

概括

我们开发了一种快速而准确的方法,用于模拟光纤传输,使用具有特征解分布的序列对序列框架. 这种方法显著减少了波长分割多重复合系统的计算时间.

科学领域:

光学通信是指光学通信.
信号处理信号处理
计算物理计算物理

背景情况:

精确的频道波形建模对于高速波长分割多重复合 (WDM) 光纤传输至关重要.
传统的方法,如分步里叶法 (SSFM),在多通道系统的计算效率方面面临挑战.

研究的目的:

提出一个新的序列对序列 (Seq2Seq) 框架,与特征解分布 (FDD) 集成,以实现高效和准确的通道波形建模.
为了显著降低时间复杂性,并提高高速率WDM系统中波形建模的准确性.

主要方法:

开发了一个Seq2Seq框架与FDD方法相结合,用于同时预测多个输出符号.
利用转移学习来优化Seq2Seq架构的训练过程和准确性.
在40通道,140 GBaud WDM系统和五通道配置中评估性能.

主要成果:

在40通道系统中,Seq2Seq-FDD将计算时间减少到40通道系统中变量步骤大小SSFM的0.22%.
在五通道设置中,实现了对FDD-Co-LSTM的正常化平均平方误差 (NMSE) 85.5%的改进.
与香草-FDD相比,计算时间减少了99.88%.

结论:

拟议的Seq2Seq-FDD框架为多通道,高速率WDM系统中的通道波形建模提供了高效的解决方案.
这种方法显著提高了速度和准确性,克服了传统方法的局限性.

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