scholarly journals Low-complexity frequency domain nonlinear compensation for OFDM based high-speed visible light communication systems with light emitting diodes

2017 ◽  
Vol 25 (4) ◽  
pp. 3780 ◽  
Author(s):  
Guowu Zhang ◽  
Junwei Zhang ◽  
Xuezhi Hong ◽  
Sailing He
Keyword(s):  
Visible Light ◽  
Frequency Domain ◽  
Communication Systems ◽  
High Speed ◽  
Light Emitting Diodes ◽  
Visible Light Communication ◽  
Low Complexity ◽  
Light Emitting ◽  
Nonlinear Compensation

High-Speed Visible Light Communication Using GaN-Based Light-emitting Diodes With Photonic Crystals

2017 ◽  
Vol 35 (2) ◽  
pp. 258-264 ◽  
Author(s):  
Yu-Feng Yin ◽  
Wen-Yi Lan ◽  
Tung-Chin Lin ◽  
Curtis Wang ◽  
Milton Feng ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Visible Light ◽  
High Speed ◽  
Light Emitting Diodes ◽  
Visible Light Communication ◽  
Light Emitting

III-Nitride Based Cyan Light-Emitting Diodes with GHz Bandwidth for High-Speed Visible Light Communication

2016 ◽  
pp. 1-1 ◽  
Author(s):  
Jin-Wei Shi ◽  
Kai-Lun Chi ◽  
Jhih-Min Wun ◽  
John Bowers ◽  
Ya-Hsuan Shih ◽  
...  
Keyword(s):  
Visible Light ◽  
High Speed ◽  
Light Emitting Diodes ◽  
Visible Light Communication ◽  
Light Emitting

scholarly journals Multi-User Precoder Designs for RGB Visible Light Communication Systems

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6836
Author(s):  
Roser Viñals ◽  
Olga Muñoz ◽  
Adrián Agustín ◽  
Josep Vidal
Keyword(s):  
Visible Light ◽  
White Light ◽  
Communication Systems ◽  
Light Emitting Diodes ◽  
Light Emission ◽  
Light Emitting Diode ◽  
Pulse Amplitude ◽  
Visible Light Communication ◽  
Light Emitting ◽  
Weighted Sum Rate

In this paper, we design linear precoders for the downlink of a visible light communication (VLC) system that simultaneously serves multiple users. Instead of using phosphor-coated white light-emitting diodes (PWLEDs), we focus on Red-Green-Blue light-emitting diodes (RGB-LEDs) that allow modulating three separate data streams on the three primary colors of the RGB-LEDs. For this system, we design a zero-forcing (ZF) precoder that maximizes the weighted sum rate for a multilevel pulse amplitude modulation (M-PAM). The precoding design in RGB-based systems presents some challenges due to the system constraints, such as the limited power, the non-negative amplitude constraints per light-emitting diode (LED), and the need to guarantee white light emission while transmitting with RGB-LEDs. For comparison purposes, we also consider the ZF design for a PWLED-based system and evaluate the performance of both a PWLED- and an RGB-based system.

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