The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance Improvement of Visual-MIMO System Using Image Brightness Information

Visual-MIMO 시스템에서 영상의 휘도 신호를 이용한 수신 성능 향상

  • Baek, Jeong-Hoon (Kookmin University, Department of Electronics Engineering) ;
  • Yun, Kee-Bang (Incheon National University, Department of Electronics Engineering) ;
  • Park, Youngil (Kookmin University, School of Electronics Engineering) ;
  • Kim, Ki-Doo (Kookmin University, School of Electronics Engineering)
  • Received : 2014.11.10
  • Accepted : 2014.12.18
  • Published : 2014.12.31
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Abstract

Recently, the communication between LED array and camera, called Visual-MIMO, is under active research and we expect the maximization of application to the vehicle as well as smart-phone. In this paper, we improve the BER performance of Visual-MIMO system by using the brightness information of a received image. We also suggest the error correction method to minimize the error due to Inter-Symbol-Interference. The performance analysis according to the noise and distance variation will verify the validity of our proposed method including results through simulation and hardware experiment.

최근 LED 어레이와 카메라간의 통신 (일명, 'Visual-MIMO') 연구가 활발히 진행되고 있으며, 차량 및 스마트폰 등으로의 응용이 극대화될 것으로 기대된다. 본 논문에서는 수신 영상의 휘도 정보를 이용하여 Visual-MIMO 시스템의 BER(Bit Error Rate) 성능을 개선하고자 한다. 특히 심벌간간섭 (ISI: Inter-Symbol-Interference)에 의한 오류를 최소화하고자 오류정정 방법을 제안한다. 잡음과 거리의 변화에 따른 성능 분석은 시뮬레이션과 하드웨어 실험을 통해 타당성을 검증한다.

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References

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