Next Article in Journal
Optical Characterization and Photovoltaic Performance Evaluation of GaAs p-i-n Solar Cells with Various Metal Grid Spacings
Next Article in Special Issue
High Stability LED-Pumped Nd:YVO4 Laser with a Cr:YAG for Passive Q-Switching
Previous Article in Journal
Diode-Pumped Actively Q-Switched Nd:YVO4/RTP Intracavity Raman Laser at 1.49 µm
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Crystals 2019, 9(3), 169; https://doi.org/10.3390/cryst9030169

Power Allocation Optimization Design for the Quadrichromatic LED Based VLC Systems with Illumination Control

National Digital Switching System Engineering & Technological Research Center, Zhengzhou 450000, China
*
Author to whom correspondence should be addressed.
Received: 13 February 2019 / Revised: 19 March 2019 / Accepted: 20 March 2019 / Published: 22 March 2019
(This article belongs to the Special Issue Recent Advances in Light-Emitting Diodes (LEDs))
  |  
PDF [1223 KB, uploaded 26 March 2019]
  |  

Abstract

For requiring high communication rate and high-quality illumination, multi-color light-emitting diodes (LEDs) have been utilized in visible light communication (VLC) systems and attracted substantial research interests. It should be noted that multiple colors are not independent from each other since they are jointly limited by the chromaticity constraint. Thus, taking full consideration of the multi-color crosstalk problem and actual communication and illumination constraints, this paper formulates a power-efficient illumination control optimization design to reduce power consumption for the quadrichromatic LED (QLED) based VLC systems where signal to interference plus noise ratio (SINR) and quadrangle chromaticity tolerance region constraints should be satisfied. Simulation results illustrate that our proposed optimal power allocation strategy can significantly increase power efficiency for the VLC system compared with the uniform power allocation method. Moreover, the proposed scheme can provide optimal performance under different given correlated color temperature (CCT) values. View Full-Text
Keywords: visible light communication (VLC); quadrichromatic light-emitting diode (QLED); multi-color crosstalk; power-efficient optimization; illumination control visible light communication (VLC); quadrichromatic light-emitting diode (QLED); multi-color crosstalk; power-efficient optimization; illumination control
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zuo, Y.; Zhang, J.; Qu, J. Power Allocation Optimization Design for the Quadrichromatic LED Based VLC Systems with Illumination Control. Crystals 2019, 9, 169.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top