Research on 4-PAM signal compensation technology for high-speed indoor FSOC based on FNN

Yidi Chang; Zhi Liu; Haifeng Yao; Tongtong Geng; Yugeng Chen; Shutong Liu

doi:10.1117/12.2641357

4 August 2022 Research on 4-PAM signal compensation technology for high-speed indoor FSOC based on FNN

Yidi Chang, Zhi Liu, Haifeng Yao, Tongtong Geng, Yugeng Chen, Shutong Liu

Proceedings Volume 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022); 123060L (2022) https://doi.org/10.1117/12.2641357
Event: Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 2022, Changchun, China

Abstract

The previous researches on signal compensation technology based on feedforward neural network (FNN) are all in underwater channel and fiber channel. In this paper, the signal compensation technology based on FNN is applied to 8Gb/s 4-PAM indoor free space optical communication (FSOC) system for the first time. Under 7% forward error correction (FEC) threshold, the FNN algorithm is compared with direct detection and traditional LMS filtering algorithm. The FNN-based method can significantly improve the receiver sensitivity and improve the performance of the communication system.

Citation Download Citation

Yidi Chang, Zhi Liu, Haifeng Yao, Tongtong Geng, Yugeng Chen, and Shutong Liu "Research on 4-PAM signal compensation technology for high-speed indoor FSOC based on FNN", Proc. SPIE 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 123060L (4 August 2022); https://doi.org/10.1117/12.2641357

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