Fig. 6From: Low complexity channel estimation algorithm using paired spatial signatures for UAV 3D MIMO systemsUplink MSE performances of proposed method as a function of SNR. Compares the performance of the proposed method with the channels projected onto the x- and y-directions are processed separately using the SBEM method in [18] then generating a 3D MIMO channel by Kronecker product, and method of 2D-DFT and angular rotation technique in [23]Back to article page