Technical research on high-speed real-time VLC based on analog pre-emphasis

Kun Liu; Dahai Han; Yichen Liu; Chuan Yang; Huibin Zhang

doi:10.1117/12.2617885

15 February 2022 Technical research on high-speed real-time VLC based on analog pre-emphasis

Kun Liu, Dahai Han, Yichen Liu, Chuan Yang, Huibin Zhang

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121666R (2022) https://doi.org/10.1117/12.2617885
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

In order to improve the system bandwidth and realize high-speed real-time visible light communication, this paper proposed an analog pre-emphasis method based on a red LED, which equalized the high-frequency signal of the red LED in the frequency domain. A field programmable gate array (FPGA) generated non-return-to-zero on-off keying (NRZ-OOK) modulated signal, which was pre-emphasized by an analog pre-emphasis circuit and then emitted by a red LED. The experimental results show that the proposed method achieves a communication rate of 246Mbps and a BER of 0 under the experimental conditions of a communication distance of 3m, LED power of 0.3W, and a real-time communication duration of 1 hour.

Citation Download Citation

Kun Liu, Dahai Han, Yichen Liu, Chuan Yang, and Huibin Zhang "Technical research on high-speed real-time VLC based on analog pre-emphasis", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121666R (15 February 2022); https://doi.org/10.1117/12.2617885

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KEYWORDS

Analog electronics

Telecommunications

Light emitting diodes

Modulation

Field programmable gate arrays

Optical communications

Receivers

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