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 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.

[1]  Grzegorz J. Blinowski,et al.  Practical aspects of physical and MAC layer security in visible light communication systems , 2016 .

[2]  Chi-Wai Chow,et al.  Using a Single VCSEL Source Employing OFDM Downstream Signal and Remodulated OOK Upstream Signal for Bi-directional Visible Light Communications , 2017, Scientific Reports.

[3]  Volker Jungnickel,et al.  Design and analysis of a visible-light-communication enhanced WiFi system , 2015, IEEE/OSA Journal of Optical Communications and Networking.

[4]  Yu-Chieh Chi,et al.  Going beyond 4 Gbps data rate by employing RGB laser diodes for visible light communication. , 2015, Optics express.

[5]  S. Denbaars,et al.  Gigabit-per-second white light-based visible light communication using near-ultraviolet laser diode and red-, green-, and blue-emitting phosphors. , 2017, Optics express.

[6]  Y. Liu,et al.  Demonstration of bi-directional LED visible light communication using TDD traffic with mitigation of reflection interference. , 2012, Optics express.

[7]  Changyuan Yu,et al.  Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems. , 2012, Optics express.

[8]  Harald Haas,et al.  Using a CMOS camera sensor for visible light communication , 2012, 2012 IEEE Globecom Workshops.

[9]  Hideki Aoyama,et al.  Visible light communication using a conventional image sensor , 2015, 2015 12th Annual IEEE Consumer Communications and Networking Conference (CCNC).

[10]  Hai-Han Lu,et al.  A multiple-input-multiple-output visible light communication system based on VCSELs and spatial light modulators. , 2014, Optics express.

[11]  C. W. Chow,et al.  Background Optical Noises Circumvention in LED Optical Wireless Systems Using OFDM , 2013, IEEE Photonics Journal.

[12]  Chi-Wai Chow,et al.  Efficient demodulation scheme for rolling-shutter-patterning of CMOS image sensor based visible light communications. , 2017, Optics express.

[13]  C. Chow,et al.  Enhancement of Signal Performance in LED Visible Light Communications Using Mobile Phone Camera , 2015, IEEE Photonics Journal.

[14]  Shoji Kawahito,et al.  LED and CMOS Image Sensor Based Optical Wireless Communication System for Automotive Applications , 2013, IEEE Photonics Journal.

[15]  Hai-Han Lu,et al.  A 100-Gb/s Multiple-Input Multiple-Output Visible Laser Light Communication System , 2014, Journal of Lightwave Technology.

[16]  Shuji Nakamura,et al.  2 Gbit/s data transmission from an unfiltered laser-based phosphor-converted white lighting communication system. , 2015, Optics express.

[17]  Chi-Wai Chow,et al.  Real-time white-light phosphor-LED visible light communication (VLC) with compact size. , 2013, Optics express.

[18]  Gong-Ru Lin,et al.  Tricolor R/G/B Laser Diode Based Eye-Safe White Lighting Communication Beyond 8 Gbit/s , 2017, Scientific Reports.

[19]  Shaoen Wu,et al.  Visible light communications for 5G wireless networking systems: from fixed to mobile communications , 2014, IEEE Network.

[20]  C. Chow,et al.  Mobile-phone based visible light communication using region-grow light source tracking for unstable light source. , 2016, Optics express.

[21]  Jiun-Yu Sung,et al.  Is blue optical filter necessary in high speed phosphor-based white light LED visible light communications? , 2014, Optics express.

[22]  Chi-Wai Chow,et al.  Light Encryption Scheme Using Light-Emitting Diode and Camera Image Sensor , 2016, IEEE Photonics Journal.