Transmitter Nonlinearity Mitigation Using Direct Learning Architecture Based Digital Predistortion Coefficients Identification

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Zepeng Gong, Fan Shi, Ming Luo, Xu Zhang, Yuhan Gong, Xiang Li, Tianye Huang, Xi Xiao

Published: 01 Jan 2024, Last Modified: 12 Apr 2025OFC 2024EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: We propose to identify the coefficients of digital predistortion equalizer based on direct learning architecture (DLA) for 100 GBaud 16QAM and 80 GBaud 64QAM transmission. Effective SNR improvement of 0.54dB and 0.66dB were experimentally verified.