… of pilots, limited feedback, and the precoder. To this end, we introduce neural network (NN) …
channel acquisition process of MU-MIMO networks. Specifically, we propose to use a NN for …

… -scale MIMO, they have been exploited in massive MIMO networks… -scale MIMO precoding
techniques for massive MIMO. This … number of orthogonal pilots in massive MIMO systems in a …

… pilot contamination mitigation approach in massive MIMO systems by integrating pilot assignment
and adaptive linear precoding… MRT and ZF precoding schemes, together with two pilot …

… UDN using optimal pilot-based vector perturbation (OPVP) precoding. The optimal pilot
design … This integrated OPVP precoding uses compressive sensing to select the low-dimensional …

… We propose a double-pilot-based time-varying hybrid precoding system based on the analysis
that analog precoding and digital precoding vary in different speeds and the size of them …

… In this paper, a pilot reuse factor with large scale fading precoding is proposed to mitigate the
pilot contamination effect… In this section, a cellular hexagonal network with pilot reuse factor …

… precoding system. By properly training the proposed neural network, we jointly optimize the
downlink pilots … each user, and the multiuser downlink precoding scheme at the BS for each …

… the pilot assignment problem in largescale distributed multi-input multi-output (MIMO) networks,
where … , we model the network by a partially-connected interference network, so that the …

… , precoding and channel estimation [38]. So, it is clear that by using proper precoding, we
can reduce pilot … reduction in peak to average power ratio (PAPR) of massive MIMO systems. …

… efficiency and network densification. For this goal, we study the impacts of … precoding
schemes to be combined with zero-forcing digital precoding on cell-free mmWave massive MIMO …