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19.02Gbps/25m Underwater Wireless Optical Communication Adopting Probabilistic Constellation Shaping QAM-DMT Transmission

Tianyi Zhang,Jiahan Tian,Yuan Wang,Chao Fei,Junwei Zhang, Fei Zhang, Yitong Xie,Guowu Zhang,Gaoxuan Wang,Ji Du,Xiaojian Hong,Sailing He

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)（2023）

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Abstract
We experimentally demonstrated probabilistic constellation shaping quadrature amplitude modulation discrete multitone (PCS QAM-DMT) for 25-m underwater wireless optical communication (UWOC) system with a net data rate of 19.02Gbps. 28.1% capacity improvement is achieved in comparison with conventional bit-power loading DMT scheme. To the best of our knowledge, this is the highest net data rate ever reported for a single LD in current UWOC.
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Key words
underwater wireless optical communication (UWOC),laser communication,probabilistic constellation shaping (PCS)
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