Research on multi-color visible light communication system using RZ-4PAM signals with 67% duty cycle

Yi Linfang; Shao Yufeng; Wang Anrong; Wang Zhuang; Yang Jie; Yang Qiming; Tian Qing; Yu Ni; Liu Shuanfan; Zuo Renjie; Yuan Jie; Li Yanlin; Chen Peng; Li Chong

doi:10.1051/itmconf/20224502003

ITM Web of Conferences (Jan 2022)

Research on multi-color visible light communication system using RZ-4PAM signals with 67% duty cycle

Yi Linfang,
Shao Yufeng,
Wang Anrong,
Wang Zhuang,
Yang Jie,
Yang Qiming,
Tian Qing,
Yu Ni,
Liu Shuanfan,
Zuo Renjie,
Yuan Jie,
Li Yanlin,
Chen Peng,
Li Chong

Affiliations

Yi Linfang: College of Electronic and Information Engineering, Chongqing Three Gorges University
Shao Yufeng: College of Electronic and Information Engineering, Chongqing Three Gorges University
Wang Anrong: College of Electronic and Information Engineering, Chongqing Three Gorges University
Wang Zhuang: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yang Jie: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yang Qiming: College of Electronic and Information Engineering, Chongqing Three Gorges University
Tian Qing: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yu Ni: College of Electronic and Information Engineering, Chongqing Three Gorges University
Liu Shuanfan: College of Electronic and Information Engineering, Chongqing Three Gorges University
Zuo Renjie: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yuan Jie: College of Electronic and Information Engineering, Chongqing Three Gorges University
Li Yanlin: College of Electronic and Information Engineering, Chongqing Three Gorges University
Chen Peng: College of Electronic and Information Engineering, Chongqing Three Gorges University
Li Chong: College of Electronic and Information Engineering, Chongqing Three Gorges University

DOI: https://doi.org/10.1051/itmconf/20224502003
Journal volume & issue: Vol. 45
p. 02003

Abstract

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In order to improve the transmission performance of visible light communication (VLC) system and user’s demand for large-capacity and high-speed, one multi-color VLC scheme is proposed. This scheme uses red-green-blue light-emitting diode (RGB-LED) as the sender to transmit 4-ary pulse amplitude modulation (4PAM) signals with 67% return-to-zero (RZ). At the receiver, one optical bandpass filter is used for channel separation. By system simulation, we have measured the time-domain waveforms before and after transmission, eye diagrams of the three colors signals, and the bit error rate (BER) performance has been analyzed. The results show that at receiver power of -11dBm, the BER at back-to-back case is slightly lower than that of the signals transmitted in the 8m channel. Since 4PAM signals have higher spectral efficiency compared with the traditional binary signals, this scheme has potential application value in indoor broadband access system.

Published in ITM Web of Conferences

ISSN: 2271-2097 (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Technology: Technology (General): Industrial engineering. Management engineering: Information technology
Website: http://www.itm-conferences.org/

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