The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
권호 표지
DOI QR코드

DOI QR Code

Performance Analysis of the Visible Light Communication System based on MIMO under Various Interference environments

다양한 간섭환경에서 MIMO기반 VLC 시스템의 성능 분석

  • 이병진 (충북대학교 전파통신공학과) ;
  • 김용원 (충청지역사업평가원) ;
  • 김경석 (충북대학교 정보통신공학과)
  • Received : 2013.02.15
  • Accepted : 2013.06.14
  • Published : 2013.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

We perform simulation. It is that LED panels is fixed and moving the terminal with PD in order to analyze the performance of visible-light wireless communication system based on MIMO under variety of the interference environment. And, based on the technology MIMO, we analyzed whether the interference caused by external light to give what effect changes in the quality of the communication channel. The distortion due to time delay in channel transmission must be compensated by using the equalizer. Especially, use of equalizer is need absolutely as data rate becomes high speed. Therefore, in this paper, the system VLC, were analyzed BER performance using channel equalization.

다양한 간섭환경에서 MIMO 기반 가시광 무선 통신 시스템의 성능 분석을 위해서 LED 패널을 고정하고, PD를 가진 단말기를 움직여 모의실험을 수행하으며 MIMO 기술을 기반으로 하여 외부광에 의한 간섭이 통신 채널 품질 변화에 미치는 영향을 분석하였다. 또한 채널에서의 전송시간 지연에 의한 왜곡은 등화기를 사용하여 보상해 주어야 하며, 특히 데이터 전송 속도가 고속이 될수록 등화기의 사용이 절대적으로 필요하게 된다. 따라서 본 논문에서는 VLC 시스템의 변조방식에 따라 채널 등화를 이용한 BER성능을 분석하였다.

Keywords

References

  1. E. T. Won and et. al., "Visible light communication : tutorial," IEEE 802.15- <08/0114-02>, March 2008.
  2. Y. Tanaka, T. Komine, S. Haruyama and M.Nakagawa, "Indoor Visible Light Data Transmission System Utilizing White LED Lights," IEICE Trans. Communication, E86-B, pp.2440-2454, 2003.
  3. Tarik Borogovac, Michael Rahaim and Jeffrey B. Carruthers, "Spotlighting for Visible Light Communications and Illumi- nation", Proceedings of the First IEEE Workshop on Optical Wireless Communications. GLOBECOM, 2010.
  4. L. Zeng, D. C. O'Brien, H. Le-Minh, K. Lee, D. Jung and Y. Oh, "Improvement of Data Rate by Using Equalization in an Indoor VLC System", IEEE ICCSC 2008, Shanghai, China, May 2008.
  5. S.B.Alexander, Optical Communication Re ceiver Design, SPIE Optical Engineering Press, Bellingham, Wash, 1997.
  6. Wolniansky, P.W., Foschini, G.J., Golden, G.D., Valenzuela, R.A.,"V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel" 1998 URSI International Symposium,Signals, Systems, and Electronics, 1998. (ISSSE '98), Oct., 1998, pp.295-300
  7. F.R. Gfeller and U.H. Bapst "Wireless in-house data communication via diffuse infrared radiation", Proc. IEE, vol. 67, no. 11, pp. 1474-1486, 1979. https://doi.org/10.1109/PROC.1979.11508