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Open AccessArticle

Smartphone Camera-Based Optical Wireless Communication System: Requirements and Implementation Challenges

Department of Electronics Engineering, Kookmin University, Seoul 02707, Korea
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Electronics 2019, 8(8), 913; https://doi.org/10.3390/electronics8080913
Received: 22 July 2019 / Revised: 12 August 2019 / Accepted: 15 August 2019 / Published: 19 August 2019
(This article belongs to the Special Issue Visible Light (VLC) and Camera Communication)
Visible light and infrared bands of the optical spectrum used for optical camera communication (OCC) are becoming a promising technology nowadays. Researchers are proposing new OCC-based architectures and applications in both indoor and outdoor systems using the embedded cameras on smartphones, with a view to making them user-friendly. Smartphones have useful features for developing applications using the complementary metal-oxide-semiconductor cameras, which can receive data from optical transmitters. However, several challenges have arisen in increasing the capacity and communication range, owing to the limitations of current cameras and implementation complexities. In this paper, we provide a comprehensive analysis of the OCC technology requirements and opportunities using smartphone cameras from an implementation point of view. Furthermore, we demonstrate an OCC system using a low frame rate smartphone camera to particularly analyze the requirements and critical implementation challenges. Also, some possible solutions are provided with a view to improving the overall system capacity, communication distance, and stability. View Full-Text
Keywords: visible light communication (VLC); image sensor; rolling shutter camera; open computer vision (CV) visible light communication (VLC); image sensor; rolling shutter camera; open computer vision (CV)
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Shahjalal, M.; Hasan, M.K.; Chowdhury, M.Z.; Jang, Y.M. Smartphone Camera-Based Optical Wireless Communication System: Requirements and Implementation Challenges. Electronics 2019, 8, 913.

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