Probabilistic channel feedback for multiuser MIMO broadcast channels with orthogonal beamforming

In multiuser multi-input multi-output (MIMO) cellular systems operating in the frequency division duplexing (FDD) mode, the channel state information (CSI) feedback from users are required in order to schedule users effectively and achieve system capacity. When the number of transmitting antennas or the number of users increases, the tremendous amount of… CONTINUE READING