Design and Implementation of the MIMO–COOK Scheme Using an Image Sensor for Long-Range Communication
Department of Electronics Engineering, Kookmin University, Seoul 02707, Korea
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Sensors 2020, 20(8), 2258; https://doi.org/10.3390/s20082258
Received: 18 February 2020 / Revised: 1 April 2020 / Accepted: 14 April 2020 / Published: 16 April 2020
(This article belongs to the Section Optical Sensors)
Radio-frequency technologies are widely applied in many fields such as mobile systems, healthcare systems, television and radio broadcasting, and satellite communications. However, one major problem in wireless communication based on radio frequencies is its impact on human health. High frequencies adversely impact human health more than low frequencies if the signal power transgresses the permissible threshold. Therefore, researchers are investigating the use of visible light waves (instead of the radio-frequency band) for data transmission in three major areas: visible light communication, light fidelity, and optical camera communication. In this paper, we propose a scheme that upgrades the camera on–off keying (COOK) scheme by using it with the multiple-input multiple-output (MIMO) scheme; COOK has been recommended by the IEEE 802.15.7-2018 standard. By applying technologies, such as matched filter, region of interest, and MIMO, our proposed scheme promises to improve the performance of the conventional scheme by improving the data rate, communication distance, and bit error rate. By controlling the exposure time, the focal length in a single camera and using channel coding, our proposed scheme can achieve the communication distance of up to 20 m, with a low error rate.
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Keywords:
optical camera communication; camera on–off keying; multiple-input multiple-output camera on–off keying
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Externally hosted supplementary file 1
Link: https://susy.mdpi.com/user/submission/video/abc2d558f8f595cf4b51373819dca01e
Description: The supplementary material video shows the implementation of our proposal scheme at the distance of 2 m.
MDPI and ACS Style
Nguyen, V.H.; Thieu, M.D.; Nguyen, H.; Jang, Y.M. Design and Implementation of the MIMO–COOK Scheme Using an Image Sensor for Long-Range Communication. Sensors 2020, 20, 2258. https://doi.org/10.3390/s20082258
AMA Style
Nguyen VH, Thieu MD, Nguyen H, Jang YM. Design and Implementation of the MIMO–COOK Scheme Using an Image Sensor for Long-Range Communication. Sensors. 2020; 20(8):2258. https://doi.org/10.3390/s20082258
Chicago/Turabian StyleNguyen, Van H.; Thieu, Minh D.; Nguyen, Huy; Jang, Yeong M. 2020. "Design and Implementation of the MIMO–COOK Scheme Using an Image Sensor for Long-Range Communication" Sensors 20, no. 8: 2258. https://doi.org/10.3390/s20082258
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