CSI feedback allows downlink transmission to be adaptively optimized based on the instantaneous DL channel, so that closedloop beamforming and adaptive link adaptation can be enabled to optimize the system performance. The DL reference sign

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

From the figure, we observe that the performance gap between ideal and realistic feedback is much more pronounced for MU-MIMO compared to SU-MIMO, which illustrates the increased sensitivity of MU-MIMO with respect to CSI accuracy. This is

Copyright (c) 2007, Karen Su Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright