“…Firstly, we compare the proposed algorithm with the traditional beamforming method such as WMMSE algorithm [
26, 31] and BCD method [
24]. The WMMSE algorithm [
26, 31] is named as WMMSE+RCG. As shown in Figure 2, with the increase of the BS equipped antennas
, the gap of the upper bound between the proposed RMT algorithm and traditional algorithms diminishes, which corroborates the claim that the proposed method with deterministic approximation based on RMT can asymptotically approach the performance of method with direct matrix inversion for a sufficient large number of antennas.…”