Joint Probabilistic and Geometric Constellation Shaping for Complexity-Constrained Direct Detection Optical Systems

We evaluate joint probabilistic and geometric constellation shaping via reinforcement learning for complexity-constrained joint equalization and demodulation of direct detection optical signals. We demonstrate the proposed technique in a simulated 56 GBd, 2.2 km C-band direct-detection system, demonstrating its effectiveness for complexity-constrained receivers. --- Source: arXiv:2607.06300v1 - http://arxiv.org/abs/2607.06300v1 PDF: https://arxiv.org/pdf/2607.06300v1 Original Link: http://arxiv....