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Realization of real‐time OFDM‐based visible light communication using an InGaN/GaN multiquantum‐wells LED
Author(s) -
Tao Zhiyuan,
Guan Xiaojun,
Wei Zhengjun,
Liu Ningyang,
Liu Yian,
Xu Yiqin
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32204
Subject(s) - visible light communication , orthogonal frequency division multiplexing , light emitting diode , megabit , electronic engineering , bandwidth (computing) , optoelectronics , computer science , bit error rate , multiplexing , optical communication , materials science , telecommunications , engineering , channel (broadcasting)
This paper presents a real‐time OFDM‐based visible light communication (VLC) system utilizing a single InGaN/GaN multiquantum‐wells (MQWs) light emitting diode (LED). An MQWs LED with 3 dB electrical bandwidth of 23.8 MHz is developed as the transmitting device. Orthogonal frequency division multiplexing (OFDM) is employed to ensure the LED bandwidth is fully used, and the system is designed and implemented on a field‐programmable gate array platform to realize real‐time communication. The real‐time OFDM‐VLC system achieves a rate of 96 Mbit/s at the distance of 2 m, and the bit error ratio (BER) is 2.25 × 10 −3 , which is below the forward error correction (FEC) limit.