Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Analysis on Bi-Directional Use of Spatial Resources

공간 자원의 양방향 활용에 대한 분석

  • Ju, Hyung-Sik (Departure or Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Sung-Eun (Departure or Electrical and Electronic Engineering, Yonsei University) ;
  • Hong, Dae-Sik (Departure or Electrical and Electronic Engineering, Yonsei University)
  • 주형식 (연세대학교 전기전자 공학부) ;
  • 이성은 (연세대학교 전기전자 공학부) ;
  • 홍대식 (연세대학교 전기전자 공학부)
  • Received : 2011.06.03
  • Accepted : 2011.08.17
  • Published : 2011.08.25
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Abstract

In multiple antenna systems, spatial facing correlation causes a significant degradation in performance. In this work, a method for reducing the sensitivity to spatial fading correlation through the bi-directional use of spatial resources is investigated. Firstly, the concept of bi-directional use of spatial resources is introduced. Then, the ability of this technique to reduce the sensitivity to spatial fading correlation is then shown through an analysis of the number of usable eigenmodes (UEMs). This system is found to efficiently reduce the sensitivity to spatial fading correlation.

다중 안테나 통신 시스템에서 채널의 correlation은 심각한 성능 열화를 일으킨다. 본 논문에서는 공간 자원을 양방향으로 활용함으로써 채널 correlation에 대한 민감도를 줄일 수 있는 방법을 다룬다. 먼저 공간 자원의 양방향 활용에 대한 개념을 제시한 후, 사용 가능한 eigenmode를 분석함으로써 이 기술이 채널 correlation에 대한 민감도를 어떻게 줄이는지에 대해 다루도록 한다. 마지막으로 시뮬레이션 결과를 통해 이 기술이 채널 correlation에 대한 민감도를 효과적으로 줄임을 보인다.

Keywords

References

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