Review on the Channel Estimation Method for MIMO-OFDM Systems

The research on MIMO-OFDM has received much attention in wireless communication system in the future, while the channel estimation is an important aspect to achieve high transmission performance for MIMO-OFDM systems. On the basis of the reviewing on the available channel estimation methods for MIMO-OFDM, analysis and comparison with the advantages and disadvantages of pilot symbols aided on no blind channel estimation method, blind channel estimation method and semi blind channel estimation method are discussed. Finally, it can be concluded that semi blind channel estimation will be the research focus of channel estimation for compromise between complexity and application of the channel estimation algorithms.