Semi-blind channel estimation of MIMO-OFDM systems based on RBF network

A Semi-blind channel estimation method of MIMO-OFDM systems based on RBF (Radial Basis Function) network is proposed in this paper, with the improved semi-blind cost function based on LS criterion, and using RBF network to substitute the function iteration. Then makes use of the improved PSO algorithm to optimize the parameter of RBF network, we also use the improved network to estimate the channel response. Finally, the simulation results show the advantages of RBF network when processing the problem of channel estimation.