The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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A Study on Noise Cancellation Model in VLC Channel caused by High Luminance of RGB LED, Using Band-Pass Optical Filters

밴드패스 광 필터를 이용한 VLC 채널의 고휘도 RGB LED 잡음 제거 모델에 관한 연구

  • Nugmanov, Said (Dept. of Integrated IT Eng., Seoul National Univ. of Science and Tech) ;
  • Khudaybergenov, Timur (Graduate School of Nano IT Design Fusion, Seoul National Univ. of Science and Tech) ;
  • Cha, Jae Sang (Dept. of Electronics and IT Media Eng., Seoul National Univ. of Science and Tech)
  • Received : 2019.01.24
  • Accepted : 2019.02.12
  • Published : 2019.02.28
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Abstract

LED lighting is spreading on the strength of LED lighting, and various government policies are being implemented. VLC research which is a wireless communication technology using lighting has been actively conducted, and it has been proven through many studies that a general LED light source such as a high-speed data transmitter can be used. But from now on, one of the main problems is the noise from side lights, which can be compared to the noise of radio broadcasts. So in this paper, we proposed a noise canceling model to remove the interference of ambient light by using an optical filter for a detachable VLC channel. In order to verify the proposed model, various high brightness RGB LED modules were used for comparative analysis. In addition, the applicability was verified through experiments using High Luminance LED lighting which is applied in real life.

LED조명의 강점을 토대로 LED조명이 보급되고 있으며, 다양한 정부정책이 시행되고 있다. 조명을 활용한 무선통신 기술인 VLC 연구가 활발히 이루어지고 있으며, 많은 연구를 통해서 고속 데이터 전송기와 같은 일반적인 LED 광원을 사용할 수 있다는 것이 증명되었다. 그러나 여전히 주요 문제 중 하나로 라디오 방송의 잡음과 유사한 빛의 간섭문제가 있다. 이에 본 논문에서는 스펙트럼 분리형 VLC 채널을 위한 광 필터를 사용하여 주변 조명의 간섭을 제거하기 위한 모델을 제안하였다. 제안한 모델의 검증을 위하여 다양한 고휘도 RGB LED 모듈을 활용하여 비교분석을 진행하였으며, 추가로 실생활에 적용되어 활용 중인 고휘도 LED 조명을 활용한 실험을 통한 적용성을 검증하였다.

Keywords

References

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