Blind channel estimation and detection for MIMO-OFDM systems
Guangfa Dai · Information technology newsletter · 2007
Based on the subspace technique,a blind channel estimation algorithm for multiple input and multiple output orthogonal frequency division multiplexing(MIMO OFDM) systems is discussed on in this paper.The algorithm applies array signal processing technology in MIMO OFDM systems.Using redundant precoding of the signals transmitted,an ESPRIT-like blind subspace channel estimation algorithm is presented.The theoretical analysis is provided to show that the channel responses of the system can be identified blindly via the proposed method,and Monte Carlo simulations are employed to indicate the channel estimation performance.