28 June 2016 Visible light communications for the implementation of internet-of-things
Author Affiliations +
Optical Engineering, 55(6), 060501 (2016). doi:10.1117/1.OE.55.6.060501
It is predicted that the number of internet-of-things (IoT) devices will be <28 billion in 2020. Due to the shortage of the conventional radio-frequency spectrum, using visible light communication (VLC) for IoT can be promising. IoT networks may only require very low-data rate communication for transmitting sensing or identity information. The implementation of a VLC link on existing computer communication standards and interfaces is important. Among the standards, universal asynchronous receiver/transmitter (UART) is very popular. We propose and demonstrate a VLC-over-UART system. Bit error rate analysis is performed. Different components and modules used in the proposed VLC-over-UART system are discussed. Then, we also demonstrate a real-time simultaneous temperature, humidity, and illuminance monitoring using the proposed VLC link.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Chia-Wei Chen, Wei-Chung Wang, Jhao-Ting Wu, Hung-Yu Chen, Kevin Liang, Liang-Yu Wei, Yung Hsu, Chin-Wei Hsu, Chi-Wai Chow, Chien-Hung Yeh, Yang Liu, Hsiang-Chin Hsieh, Yen-Ting Chen, "Visible light communications for the implementation of internet-of-things," Optical Engineering 55(6), 060501 (28 June 2016). https://doi.org/10.1117/1.OE.55.6.060501

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