Secure Mobile-Phone Based Visible Light Communications With Different Noise-Ratio Light-Panel

We propose and demonstrate a visible light communication (VLC) system using a light-panel and a mobile-phone camera. We also propose the rolling-shutter-effect (RSE) pattern synchronization and demodulation algorithms. By using our developed mobile-phone application program, the RSE pattern can be d...

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Bibliographic Details
Published in:IEEE photonics journal 2018-04, Vol.10 (2), p.1-6
Main Authors: Chow, Chi-Wai, Shiu, Ruei-Jie, Liu, Yen-Chun, Yeh, Chien-Hung, Liao, Xin-Lan, Lin, Kun-Hsien, Wang, Yi-Chang, Chen, Yi-Yuan
Format: Article
Language:English
Subjects:
Cameras
CMOS image sensor
CMOS image sensors
Demodulation
Gray-scale
Light emitting diode (LED)
Light emitting diodes
Motion pictures
Synchronization
visible light communication (VLC)
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Summary:We propose and demonstrate a visible light communication (VLC) system using a light-panel and a mobile-phone camera. We also propose the rolling-shutter-effect (RSE) pattern synchronization and demodulation algorithms. By using our developed mobile-phone application program, the RSE pattern can be demodulated even at very low illuminance. As the light-panel will have different advertisements on it, we also define a noise-ratio (NR) as the figure-of-merit; hence, different VLC data rates can be adjusted according to different advertisement NR values. Experimental bit error rate measurements at different free-space transmission distances and different NRs are performed.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2018.2807582