Portable Mbps point-to-point OOK-NRZ visible light communication devices based on white light-emitting diode illuminant

2012 ◽  
Vol 54 (10) ◽  
pp. 2248-2252 ◽  
Author(s):  
Yang Liu ◽  
Chuan-Tao Zheng ◽  
Yan-Ting Li ◽  
Wei-Lin Ye
Keyword(s):  
Visible Light ◽  
White Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Light Emitting ◽  
Communication Devices ◽  
Point To Point

Portable visible light communication transmitter and receiver using core-shell CdSe/ZnS quantum dots white light-emitting diode

2019 ◽  
Vol 13 (7) ◽  
pp. 873-878
Author(s):  
Ziwen Li ◽  
Dingke Xue ◽  
Dayong Liu ◽  
Yang Liu ◽  
Weilin Ye ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
White Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Core Shell ◽  
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.

Long-Distance Visible Light Communication Based on Light Emitting Diode Source

2017 ◽  
Vol 54 (5) ◽  
pp. 050602
Author(s):  
张宇飞 Zhang Yufei ◽  
张洪明 Zhang Hongming ◽  
王鹏 Wang Peng ◽  
刘涛 Liu Tao ◽  
孙德栋 Sun Dedong ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Long Distance ◽  
Light Emitting

scholarly journals A Full-Duplex LED-to-LED Visible Light Communication System

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1713
Author(s):  
Hyunwoo Jung ◽  
Sung-Man Kim
Keyword(s):  
Visible Light ◽  
Bit Error Rate ◽  
Error Rate ◽  
Signal To Noise Ratio ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Full Duplex ◽  
Signal To Noise ◽  
Light Emitting ◽  
Half Duplex

We experimentally demonstrated full-duplex light-emitting diode (LED)-to-LED visible light communication (VLC) using LEDs as the transmitter and receiver. Firstly, we investigated the performance dependency on the wavelengths of the LED transmitter and receiver by measuring the rise time and signal-to-noise ratio (SNR). Through the investigation, we were able to choose the optimal LED color set for LED-to-LED VLC using Shannon’s channel capacity law. The bit error rate (BER) results of full-duplex and half-duplex LED-to-LED VLC systems with the optimal LED sets are shown to compare the performance. Furthermore, we discuss major distortions and signal losses in the full-duplex LED-to-LED VLC system.

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