… System and channel model We consider an m-MIMO system consisting of one BS equipped
… environments in m-MIMO system where the BS has a large number of antennas and is high …

… 4(b) shows it can still achieve gain over conventional massive MIMO beamforming schemes
at much lower number of antennas. Fig. 4(b) also shows that multi-cell MMSE approaches …

… multi-layer precoding design for full-dimensional massive MIMO systems, and show how it
enables leveraging the large-… c (3) , we design FA c as a conjugate beamforming matrix based …

… roles in harvesting the performance gains of massive MIMO. In this article, we … of massive
MIMO systems. We then investigate the multi-layer techniques for incorporating massive MIMO …

… This scenario applies to cellular communication systems in which the channel is a
Massive MIMO channel. Multiuser transmit BF is utilized to support multi-stream (or multi-layer) …

… This design was specifically developed for massive MIMO systems, where minimizing
area and power is key, while NF requirements can be relaxed due to array gains [8]. …

… good beamforming performance within a small number of iterations, we employ a multi-layer
perception (MLP) to predict the gradient vector with respect to the beamforming vectors. By …

… digital beamformers, and propose multi-layer beamforming strategies with different time
scales. In the first layer, analog precoders/combiners are designed based on the second order …

… Among prior works, [21]–[24] consider channel estimation for wideband mm-Wave massive
MIMO systems. The hybrid beamforming design was investigated in [19], [25]–[27] where …

… Massive MIMO systems are a fundamental technology used for beamforming in mmWave
systems… this study, the M-ELM receiver will be introduced for mmWave massive MIMO systems. …