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Acta Optica Sinica, Volume. 42, Issue 7, 0706007(2022)

Symbol Timing Offset Estimation Method for Visible Light Communication Systems

Kaiyao Wang*, Zhiyong Hong, and Zhiqiang Zeng
Author Affiliations
  • YUE-GANG-AO Industrial Big Data Collaborative Innovation Center, Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, Guangdong 529020, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (23)
    Cited By (6)
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    Figures & Tables(8)
    Schematic diagram of training symbol generation

    Fig. 1. Schematic diagram of training symbol generation

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    Schematic diagram of timing metric calculation process

    Fig. 2. Schematic diagram of timing metric calculation process

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    Comparison of timing metrics of different methods under conditions of no noise and distortion

    Fig. 3. Comparison of timing metrics of different methods under conditions of no noise and distortion

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    Simulation results of BER for different scaling factors and DC biases in AWGN channel

    Fig. 4. Simulation results of BER for different scaling factors and DC biases in AWGN channel

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    Simulation results of synchronization performance and BER in AWGN channel for different SNR. (a) RMSE of timing offset estimation; (b) MAE of timing offset estimation; (c) BER performance

    Fig. 5. Simulation results of synchronization performance and BER in AWGN channel for different SNR. (a) RMSE of timing offset estimation; (b) MAE of timing offset estimation; (c) BER performance

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    Simulation results of synchronization performance at different positions. (a) RMSE of timing offset estimation; (b) MAE of timing offset estimation

    Fig. 6. Simulation results of synchronization performance at different positions. (a) RMSE of timing offset estimation; (b) MAE of timing offset estimation

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    Simulation results of BER performance at different positions

    Fig. 7. Simulation results of BER performance at different positions

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    • Table 1. Simulation parameters

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      Table 1. Simulation parameters

      ParameterValue
      Lambert order m1
      FOV semiangle of the PD ψc /(°)85
      Surface area of the PD A /cm21
      PD responsivity R /(A·W-1)1
      Reflectance factor of wall ρ0.165
      Reflective area of small region Awall /cm21
      Optical filter gain Ts(ψ)1
      Concentrator gain g(ψ)1
      Bandwidth B /MHz250
      Minimum operating current IL /A0.05
      Maximum operating current IH /A1
      Length of CP Ng12
      Length of training data N104
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    Kaiyao Wang, Zhiyong Hong, Zhiqiang Zeng. Symbol Timing Offset Estimation Method for Visible Light Communication Systems[J]. Acta Optica Sinica, 2022, 42(7): 0706007

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Aug. 12, 2021

    Accepted: Oct. 15, 2021

    Published Online: Mar. 1, 2022

    The Author Email: Wang Kaiyao (wang.kaiyao@outlook.com)

    DOI:10.3788/AOS202242.0706007

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology