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Novel Gain Control Scheme for VLC systems  

Lee, Sun Yui (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Jung, Kuk Hyun (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Hwang, Yu Min (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Lee, Sung Hun (대구테크노파크)
Kim, Jin Young (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.9, no.3, 2014 , pp. 41-46 More about this Journal
Abstract
In this paper, a transceiver of VLC (Visible Light Communication) using LED white lighting has been implemented. We analyzed differences between conventional wireless communication and VLC with high-speed data transmission in a variety of environments, and confirmed symbols which passed through a channel using QAM. In order to get a high data rate, we found some variables that should be considered essentially though experiments. In addition, we set a bandwidth and found an optimal gain according to the distance between transmitter and receiver. We analyzed proposed system model through Labview and finally showed a system performance. The performance showed a 2Mbps QAM data rate in real visible light indoor channels.
Keywords
Light Emitting Diode; Photo Diode; Visible Light Communication; Quadrature Amplitude Modulation;
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  • Reference
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