Gb/s Real-Time Visible Light Communication System Based on White LEDs Using T-Bridge Cascaded Pre-Equalization Circuit

We demonstrate a Gb/s real-time visible light communication (VLC) system based on NRZ-OOK by a phosphorescent white light-emitting diode (LED). We propose an equalizer employed by an RC series-parallel connection cascade circuit based on the T-bridge structure. With the proposed circuit, the 3-dB ba...

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Bibliographic Details
Published inIEEE photonics journal Vol. 10; no. 2; pp. 1 - 7
Main Authors Zhang, Haiqi, Yang, Aiying, Feng, Lihui, Guo, Peng
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2018
Subjects
Bandwidth
Bit error rate
Capacitance
cascaded pre-equalization circuit
Equalizers
Light emitting diodes
Real-time systems
RLC circuits
T-bridge structure
Visible light communication
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Summary:We demonstrate a Gb/s real-time visible light communication (VLC) system based on NRZ-OOK by a phosphorescent white light-emitting diode (LED). We propose an equalizer employed by an RC series-parallel connection cascade circuit based on the T-bridge structure. With the proposed circuit, the 3-dB bandwidth of the VLC system can be extended from 1 to 520 MHz. The Bit Error Ratio (BER) of the system was 7.36 × 10 -4 , and the data rate was 1 Gb/s at a distance of 1.5 m. To the best of our knowledge, this is the highest real-time data rate and 3-dB bandwidth achieved based on a white LED.
ISSN:1943-0655
1943-0655
1943-0647
DOI:10.1109/JPHOT.2018.2812759