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arXiv · 2607.06300

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

Rodrigo Fischer·Shrinivas Chimmalgi·Andrej Rode·Laurent Schmalen
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Abstract

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.

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Rodrigo Fischer, Shrinivas Chimmalgi, Andrej Rode, Laurent Schmalen. 2026-07-07. Joint Probabilistic and Geometric Constellation Shaping for Complexity-Constrained Direct Detection Optical Systems. https://arxiv.org/abs/2607.06300

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