High-Speed Visible Light Communications Using ZnSe-Based White Light Emitting Diode

2016 ◽  
Vol 28 (18) ◽  
pp. 1948-1951 ◽  
Author(s):  
P. H. Binh ◽  
N. T. Hung
Keyword(s):  
Visible Light ◽  
White Light ◽  
High Speed ◽  
Light Emitting Diode ◽  
Visible Light Communications ◽  
Light Emitting

High-Speed Visible Light Communications Using Individual Pixels in a Micro Light-Emitting Diode Array

2010 ◽  
Vol 22 (18) ◽  
pp. 1346-1348 ◽  
Author(s):  
Jonathan J. D. McKendry ◽  
Richard P. Green ◽  
A. E. Kelly ◽  
Zheng Gong ◽  
Benoit Guilhabert ◽  
...  
Keyword(s):  
Visible Light ◽  
High Speed ◽  
Light Emitting Diode ◽  
Diode Array ◽  
Visible Light Communications ◽  
Light Emitting

scholarly journals Experimental Demonstration of Special-Shaped 32-Quadrature Amplitude Modulation Constellations for Visible Light Communications

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Xinyue Guo ◽  
Shuangshuang Li ◽  
Yang Guo
Keyword(s):  
Visible Light ◽  
Amplitude Modulation ◽  
High Speed ◽  
Light Emitting Diode ◽  
Rapid Development ◽  
Average Power ◽  
Visible Light Communication ◽  
Quadrature Amplitude Modulation ◽  
Visible Light Communications ◽  
Transmission Distance

With the rapid development of light-emitting diode, visible light communication (VLC) has become a candidate technology for the next generation of high-speed indoor wireless communication. In this paper, we investigate the performance of the 32-quadrature amplitude modulation (32-QAM) constellation shaping schemes for the first time, where two special circular constellations, named Circular (4, 11, 17) and Circular (1, 5, 11, 15), and a triangular constellation are proposed based on the Shannon’s criterion. Theoretical analysis indicates that the triangular constellation scheme has the largest minimum Euclidian distance while the Circular (4, 11, 17) scheme achieves the lowest peak-to-average power ratio (PAPR). Experimental results show that the bit error rate performance is finally decided by the value of PAPR in the VLC system due to the serious nonlinearity of the LED, where the Circular (4, 11, 17) scheme always performs best under the 7% preforward error correction threshold of 3.8 × 10−3 with 62.5Mb/s transmission data rate and 1-meter transmission distance.

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 Secrecy Dimming Capacity in Multi-LED PAM-Based Visible Light Communications

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Byung Wook Kim
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Mobile Network ◽  
Pulse Amplitude ◽  
Visible Light Communication ◽  
Security And Privacy ◽  
Visible Light Communications ◽  
Light Emitting ◽  
Secure Transmission ◽  
Transmission Ability

Recently, mobile cloud computing (MCC) has gained a lot of interest for researchers building the next-generation mobile applications. Because unauthorized access may cause serious problems, security and privacy with MCC have become significant issues. This paper addresses the secrecy dimming capacity of secure transmission in MCC over visible light communication (VLC) channels. By obtaining the entropy-maximizing symbol probability of multiple light emitting diode- (LED-) based pulse amplitude modulation (PAM), mathematical analysis of the secrecy dimming capacity of VLC was derived. Simulation results show that the secure transmission ability of multi-LED-based VLC is determined according to the number of activated LEDs and target dimming level. This can be a guideline for practical VLC-based mobile network designers intending to secure wireless transmission and to decide on the number of activated LEDs at target dimming level to operate.

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