Fig. 5
From: Low computational complexity methods for decoding of STBC in the uplink of a massive MIMO system
BER performance comparison for updating the CSI of 1 user for the number of users M = 8, 16.
BS is equipped with N = 320 antennas that serves M = 8, 16 users. This simulation studies the case in which the channel estimation in changed for a particular user while the total number of users remains constant. Simulations (a) and (b) corresponds to the BER performance of the system with 8 and 16 users, respectively