Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Capacity Characteristics of the Indoor Propagation Channel for MIMO System at 5 GHz

5GHz 대역 MIMO 시스템에 대한 실내 전파 채널용량 특성

  • Ryu, Seong-Hyun (Microwave & Antenna Lab., Dept. of Electrical & Electronic Eng., Yonsei Univ) ;
  • Kim, Jung-Ha (Microwave & Antenna Lab., Dept. of Electrical & Electronic Eng., Yonsei Univ) ;
  • Kwon, Se-Woong (Microwave & Antenna Lab., Dept. of Electrical & Electronic Eng., Yonsei Univ) ;
  • Yoon, Young-Joong (Microwave & Antenna Lab., Dept. of Electrical & Electronic Eng., Yonsei Univ)
  • 유성현 (연세대학교 전기.전자공학과) ;
  • 김정하 (연세대학교 전기.전자공학과) ;
  • 권세웅 (연세대학교 전기.전자공학과) ;
  • 윤영중 (연세대학교 전기.전자공학과)
  • Published : 2003.11.15
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Abstract

This paper presents capacity characteristics of the indoor LOS(Line-Of-Sight) propagation channel for MIMO system at 5GHz. The distance between antenna elements, their moving path, and number of transmitting and receiving antennas can be determined by wanted eigen-vlaue, and channel capacity of the MIMO communication channel using only reliable simulation without measurements. The simulation uses 3D Ray tracing and patch scattering model to which electromagnetic material constants are applied. As distance between antenna elements increases, distribution of the eigen-value show a tendency to decrease, but channel capacity increases in LOS environment. However, despite of short distance between antenna elements, large value of channel capacity is obtained in positions which have high AS. When the position of receiver antennas are shifted, channel capacity hardly changed, and as number of antenna elements increases, channel capacity also increases regularly.

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