A Selection Transmit Diversity with Adaptive Modulation

적응변조를 이용한 선택적 송신 다이버시티 기술

  • 김준오 (부경대학교 대학원 전자공학과) ;
  • 권종만 (부경대학교 대학원 전자공학과) ;
  • 임창헌 (부경대학교 대학원 전자공학과)
  • Published : 2001.06.01

Abstract

The selection transmit diversity is an effective way to avoid the deep fading in a wireless channel. However, it may not completely eliminate the SNR fluctuation of a received signal at the receiver. This letter presents an application of an adaptive modulation effectively exploiting the SNR variation over time for a higher spectral efficiency to the conventional selection transmit diversity. Numerical results show that the proposed scheme can achieve a SNR gain of about 7 dB over the conventional selection diversity in a flat Rayleigh fading environment, when a BER of 10$^{-3}$ and a spectral efficiency of 2 bps/Hz are required..

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