Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping

Mitigating Fiber Nonlinearities by Short-length Probabilistic Shaping

We show that short-length probabilistic shaping reduces nonlinear interference in optical fiber transmission. SNR improvements of up to 0.8 dB are obtained. The shaping gain vanishes when interleaving is employed and not undone before transmission.

引入4D几何壳整形以缓解非线性干扰噪声

Introducing 4D Geometric Shell Shaping for Mitigating Nonlinear Interference Noise

提出4D-GSS方法以缩小非线性引起的整形间隙，在400ZR兼容设置下相比PM-16QAM等格式提升了非线性容忍度与传输距离，并提供了低复杂度可扩展的4D调制格式设计框架。

迈向节能大规模 MIMO：用于缓解非线性 PA 失真的图神经网络预编码

Toward Energy-Efficient Massive MIMO: Graph Neural Network Precoding for Mitigating Non-Linear PA Distortion

提出一种 GNN 预编码器，在高阶非线性 PA 模型下最大化大规模 MIMO 和速率，通过将失真导向非用户方向显著提升速率、降低功耗与复杂度。