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Mitigation Technique for Receiver Performance Variation of Multi-Color Channels in Visible Light Communication
Department of Electronics Engineering, Kookmin University, Seoul, Korea
Department of Media Engineering, Seoul National University of Science & Technology, Korea
Department of Wireless Communications Engineering, Kangwoon University, Korea
* Author to whom correspondence should be addressed.
Received: 6 April 2011; in revised form: 24 May 2011 / Accepted: 2 June 2011 / Published: 7 June 2011
Abstract: “Green” and energy-efficient wireless communication schemes have recently experienced rapid development and garnered much interest. One such scheme is visible light communication (VLC) which is being touted as one of the next generation wireless communication systems. VLC allows communication using multi-color channels that provide high data rates and illumination simultaneously. Even though VLC has many advantageous features compared with RF technologies, including visibility, ubiquitousness, high speed, high security, harmlessness for the human body and freedom of RF interference, it suffers from some problems on the receiver side, one of them being photo sensitivity dissimilarity of the receiver. The photo sensitivity characteristics of a VLC receiver such as Si photo-detector depend on the wavelength variation. The performance of the VLC receiver is not uniform towards all channel colors, but it is desirable for receivers to have the same performance on each color channel. In this paper, we propose a mitigation technique for reducing the performance variation of the receiver on multi-color channels. We show received power, SNR, BER, output current, and outage probability in our simulation for different color channels. Simulation results show that, the proposed scheme can reduce the performance variation of the VLC receiver on multi-color channels.
Keywords: multi-color channels; visible light communication; photo sensitivity; photo-detector; outage probability; performance balancing factor
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Uddin, M.S.; Cha, J.S.; Kim, J.Y.; Jang, Y.M. Mitigation Technique for Receiver Performance Variation of Multi-Color Channels in Visible Light Communication. Sensors 2011, 11, 6131-6144.
Uddin MS, Cha JS, Kim JY, Jang YM. Mitigation Technique for Receiver Performance Variation of Multi-Color Channels in Visible Light Communication. Sensors. 2011; 11(6):6131-6144.
Uddin, Muhammad Shahin; Cha, Jae Sang; Kim, Jin Young; Jang, Yeong Min. 2011. "Mitigation Technique for Receiver Performance Variation of Multi-Color Channels in Visible Light Communication." Sensors 11, no. 6: 6131-6144.