MU-MIMO is widely considered a key technology for system capacity improvement in modern wireless networks. In contrast to SU-MIMO, where the spatial multiplexing gain is confined to a single user, MU-MIMO allows multiple users to be co-sche

Much of the initial excitement about MIMO systems was due to pioneering work by Winters [132], Foschini [29], and Telatar [113] predicting remarkable capacity growth for wireless systems with multiple antennas when the channel exhibits rich scatt