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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Performance Enhancement by Interference Cancellation Scheme in Transmit Diversity using STBC over Time Selective Fading Channel

Time Selective Fading 채널 환경에서 STBC를 이용하는 송신 다이버시티에서 간섭제거기법에 의한 성능 개선

  • Kim, Jang-Wook (Dongyang Technical College) ;
  • Jin, Yang-Hee (Dept. of Inform. & Telecomm. Eng., Graduate School of Hankuk Aviation Univ.) ;
  • Oh, Chang-Heon (School of Inform. Tech., Korea Univ. of Tech. and Edu.) ;
  • Cho, Sung-Joon (School of Electronics, Telecomm. and Computer Eng. of Hankuk Aviation Univ.)
  • 김장욱 (동양공업전문대학) ;
  • 양희진 (한국항공대학교 대학원 정보통신공학과) ;
  • 오창헌 (한국기술교육대학교 정보기술공학부) ;
  • 조성준 (한국항공대학교 전자.정보통신.컴퓨터 공학부)
  • Published : 2003.11.15
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Abstract

Transmit diversity using STBC(Space Time Block Code) provides the same diversity gain as MRRC(Maximal Ratio Receiver Combining), when the fading channel is constant across two consecutive symbols. But, when the channel condition is changed for the two consecutive symbols, the transmit diversity using STBC does not offer good performance due to the large doppler shift. In this paper, we have proposed a interference cancellation scheme for performance enhancement in transmit diversity using STBC over time selective fading channel. Simulation results for various doppler shift rates are presented for the transmit diversity using the proposed scheme.

Keywords