Abstract

We propose and experimentally demonstrate the first bi-directional optical wireless link operating in non-direct line-of-sight (Nd-LOS). The system is based on visible light emitting diode (LED) for downlink and infrared LED for uplink. We achieve around 250 Mbit/s for both downstream and upstream transmission, with the ambient light noise of usual indoor illumination level (500 lx), produced by warm-white LED. 100 Mbit/s are guaranteed inside 12 m $^{2}$ of a common room scenario, without LOS tracking. An optimized discrete multi-tone modulation gives bit-error-ratios always below of the common forward-error-correction threshold of 1.5 ×10 $^{-3}$ . These results indicate that this scheme has great potential for practical VLC system implementation.

© 2014 IEEE

Gigabit-class optical wireless communication system at indoor distances (1.5 – 4 m)

Giulio Cossu, Wajahat Ali, Raffaele Corsini, and Ernesto Ciaramella
Opt. Express 23(12) 15700-15705 (2015)

Demonstration of 575-Mb/s downlink and 225-Mb/s uplink bi-directional SCM-WDM visible light communication using RGB LED and phosphor-based LED

Yuanquan Wang, Yiguang Wang, Nan Chi, Jianjun Yu, and Huiliang Shang
Opt. Express 21(1) 1203-1208 (2013)

Full-duplex high-speed indoor optical wireless communication system based on a micro-LED and VCSEL array

Zixian Wei, Shi Zhang, Simei Mao, Lei Wang, Li Zhang, Chien-Ju Chen, Meng-Chyi Wu, Yuhan Dong, Lai Wang, Yi Luo, and H. Y. Fu
Opt. Express 29(3) 3891-3903 (2021)

Wavefront shaping for multi-user line-of-sight and non-line-of-sight visible light communication

Xiaomeng Zhou, Jianyang Shi, Nan Chi, Chao Shen, and Ziwei Li
Opt. Express 31(16) 25359-25371 (2023)

Investigation of non-line-of-sight underwater optical wireless communications with wavy surface

Chengwei Fang, Shuo Li, Yinong Wang, and Ke Wang
Opt. Express 32(4) 4799-4815 (2024)