Abstract
Optical camera communication (OCC) is the subset of a visible light communication. Due to some practical challenges for data transmission, most of the existing OCC systems fail to provide long-distance real-time communication performance. In this study, we proposed and demonstrated a long-distance real-time OCC system that utilizes the multiple frequency shift on-off keying modulation technique on the transmitter side. Moreover, to observe the performance of the proposed modulation scheme, we compare it to the others for the OCC system with respect to the bit-error-rate and signal to noise ratio. Besides, the rolling shutter mechanism of a smartphone embedded CMOS image sensor used to enhance the data rate and communication distance. The system performance shows that it can successfully communicate 7 m distance between the light-emitting diode as a transmitter and smartphone image sensor as a receiver. The proposed system can be applied to VLC based indoor positioning system, smart indoor lighting, autonomous vehicle system in outdoor, and indoor optical wireless healthcare monitoring system.
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2020R1A4A1019463).
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Rahman, M.H., Sejan, M.A.S., Chung, WY. (2021). Long-Distance Real-Time Rolling Shutter Optical Camera Communication Using MFSK Modulation Technique. In: Singh, M., Kang, DK., Lee, JH., Tiwary, U.S., Singh, D., Chung, WY. (eds) Intelligent Human Computer Interaction. IHCI 2020. Lecture Notes in Computer Science(), vol 12616. Springer, Cham. https://doi.org/10.1007/978-3-030-68452-5_6
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