Study On Optical Communications, Volume. 50, Issue 4, 22008101(2024)

Amplitude Factorization Polynomial Pre-distortion for Nonlinear LED

Yuanbo CHENG1... Haipeng ZHA1, Xian BAO1, Kun ZHANG2, and Wenqiang LU23,* |Show fewer author(s)
Author Affiliations
  • 1BYD Auto Industry Company Limited, Shenzhen 518118, China
  • 2Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(12)
    The structure of CPWL model
    Modification of the bias function
    The transmission characteristics of memory Rapps LED model
    Schematic diagram of DCO-OFDM VLC system with adaptive indirect learning architecture with AFP pre-distorter
    The output of AFP model time domain and frequency domain
    NMSE performance of different modeling schemes versus the number of training samples
    AM/AM curves before and after pre-distortion
    Comparison of constellation diagram before and after pre-distortion
    BER comparison of different schemes
    • Table 1. Parameters of the memory Rapps model

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      Table 1. Parameters of the memory Rapps model

      LTINL
      b0b1b2Imax/AkVTOV/V
      1.000.150.100.502.000.20
    • Table 2. Simulation parameters

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      Table 2. Simulation parameters

      参量参数值
      子载波数量512
      QAM16
      短保护间隔128
      FFT/IFFT长度512
      采样频率/MHz25.6
      调制带宽/MHz20
      原始数据率/Mbit/s80
    • Table 3. Modeling accuracy of different models

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      Table 3. Modeling accuracy of different models

      模型名字记忆深度(M建模时间/sNMSE/dB
      GMP20.097 8-46.236 3
      MP20.448 3-29.629 3
      Volterra20.033 8-37.704 0
      AFP20.288 8-47.272 8
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    Yuanbo CHENG, Haipeng ZHA, Xian BAO, Kun ZHANG, Wenqiang LU. Amplitude Factorization Polynomial Pre-distortion for Nonlinear LED[J]. Study On Optical Communications, 2024, 50(4): 22008101

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    Paper Information

    Category: Research Articles

    Received: Jan. 29, 2023

    Accepted: --

    Published Online: Aug. 15, 2024

    The Author Email: LU Wenqiang (wqlu@cigit.ac.cn)

    DOI:10.13756/j.gtxyj.2024.220081

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