The space limitation and channel acquisition prevent Massive MIMO from being easily
deployed in a practical setup. Motivated by current deployments of LTE-Advanced, the use …

Cell-free massive multiple-input multiple-output (MIMO) system is a promising architecture
for next generation wireless systems by deploying a very large number of distributed access …

Most works on cell-free massive multiple-input multiple-output (MIMO) consider non-
cooperative precoding strategies at the base stations (BSs) to avoid extensive channel state …

Massive MIMO systems promise high spectrum efficiency by deploying M≫1 antennas at the
base station (BS). However, to achieve the full gain provided by massive MIMO, the BS …

In this paper, we analyze the spectral efficiency of multicell massive multiple-input-multiple-
output (MIMO) systems with downlink training and a new pilot contamination precoding …

Massive MIMO systems achieve high sum spectral efficiency by simultaneously serving
large numbers of users. In time division duplexing systems, however, the reuse of uplink …

Recently, massive multiple-input multiple-output (MIMO) system has attracted tremendous
research interests in wireless communications. Among various performance aspects and …

In this paper, we investigate a cell-free massive multiple-input multiple-output system with
both access points and user equipments equipped with multiple antennas over the …

In this paper, considering a hybrid architecture at the base station (BS) in an m-MIMO
system, multi-antenna users transmit/receive multiple symbols to/from the BS in the …

In frequency-division duplex full-dimension massive MIMO systems, one of the main
challenges is to obtain sufficiently accurate channel state information (CSI) at the transmitter …