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

The Institute of Electronics and Information Engineers (대한전자공학회)
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Performance of MIMO-OFDM Systems using The Relay With Multi-Antennas for Cooperative Diversity (Put English Title Here)

다중 안테나의 relay를 가진 MIMO-OFDM시스템의 Cooperative diversity에 따른 성능

  • 김찬규 (한밭대학교 전자공학과) ;
  • 김영일 (한국전자통신연구원 이동통신본부)
  • Published : 2008.06.25
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Abstract

In this paper, the new cooperative communication techniques is proposed for multi-input multi-output(MIMO)-orthogonal frequency division multiplexing (OFDM) system using the relay with multiple antenna. As the MIMO channel is formed by space time coding at the MS(mobile station)-RS(relay station) and RS-BS(base station), we can get the cooperative diversity and MIMO diversity gain simultaneously. Therefore, the performance of MIMO-OFDM system using the relay with multiple-antennas is very improved. And the simple power allocation technique is Proposed for the transmitting power of the mobile station and the relay.

이 논문에서는MIMO(Multi-Input Multi-Out)-OFDM(Orthogonal Frequency Division Multiplexing) 시스템에 다중 안테나를 가진 relay를 적용 할 경우, cooperation 통신을 하기 위한 기법을 제안하고 성능을 분석한다. 이동국과 relay간 뿐만 아니라 relay와 기지국간에도 STC(space time coding)에 의해 MIMO채널이 형성되어 cooperative diversity와 MIMO에 의한 diversity 이득을 함께 얻을 수 있어 시스템의 성능이 크게 향상된다. 또한 이동국과 relay에서 송신전력을 위한 간략화 된 전력할당 기법을 제안하여 이에 따른 시스템의 성능이 향상됨을 분석한다.

Keywords

References

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