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Article

Constant Transmission Efficiency Dimming Control Scheme for VLC Systems

National Digital Switching System Engineering & Technological Research Center, Zhengzhou 450000, China
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Photonics 2021, 8(1), 7; https://doi.org/10.3390/photonics8010007
Received: 23 November 2020 / Revised: 25 December 2020 / Accepted: 25 December 2020 / Published: 31 December 2020
(This article belongs to the Special Issue Visible Light Communication (VLC))
As a novel mode of indoor wireless communication, visible light communication (VLC) should consider the illumination functions besides the primary communication function. Dimming control is one of the most crucial illumination functions for VLC systems. However, the transmission efficiency of most proposed dimming control schemes changes as the dimming factor changes. A block coding-based dimming control scheme has been proposed for constant transmission efficiency VLC systems, but there is still room for improvement in dimming range and error performance. In this paper, we propose a dimming control scheme based on extensional constant weight codeword sets to achieve constant transmission efficiency. Meanwhile, we also provide a low implementation complexity decoding algorithm for the scheme. Finally, comparisons show that the proposed scheme can provide a wider dimming range and better error performance. View Full-Text
Keywords: visible light communication (VLC); dimming control; constant transmission efficiency; error performance; light-emitting diode (LED) visible light communication (VLC); dimming control; constant transmission efficiency; error performance; light-emitting diode (LED)
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MDPI and ACS Style

Guo, J.-N.; Zhang, J.; Xin, G.; Li, L. Constant Transmission Efficiency Dimming Control Scheme for VLC Systems. Photonics 2021, 8, 7. https://doi.org/10.3390/photonics8010007

AMA Style

Guo J-N, Zhang J, Xin G, Li L. Constant Transmission Efficiency Dimming Control Scheme for VLC Systems. Photonics. 2021; 8(1):7. https://doi.org/10.3390/photonics8010007

Chicago/Turabian Style

Guo, Jia-Ning, Jian Zhang, Gang Xin, and Lin Li. 2021. "Constant Transmission Efficiency Dimming Control Scheme for VLC Systems" Photonics 8, no. 1: 7. https://doi.org/10.3390/photonics8010007

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