A practical pilot-based channel estimation method for space-time coded ofdm system
一种实用的基于导频的空时编码OFDM系统信道估计方法

This paper deals with pilot-based channel estimation of space-time coded OFDM system in frequency selective channels. DFT-based LS and LMMSE method are studied. A practical channel estimation method is proposed. In proposed method the complexity of LS and LMMSE methods is greatly reduced by optimally designing the pilot symbols. And the performance demonstrated by simulation is close to idea channel information.