In this paper, we investigate low-complexity statistical channel state information (CSI) based
beam-domain multiple access user-scheduling methods for massive multiple-input-multiple …

Massive multiple-input multiple-output (MIMO) can boost the spectrum and energy efficiency
for the next generation wireless communication systems. However, pilot contamination …

This paper addresses the beam allocation problem in a switched-beam based massive
multiple-input-multiple-output (MIMO) system working at the millimeter wave frequency …

Random access is necessary in crowded scenarios due to the limitation of pilot sequences
and the intermittent pattern of device activity. Nowadays, most of the related works are based …

We consider a heterogeneous network (HetNet) where data are delivered from multi-users
to a macro-cell base station (MBS) with the help of massive antenna small-cell base stations …

This paper proposes a unified transmission strategy for multiuser time division duplex
(TDD)/frequency division duplex (FDD) massive multiple-input-multiple-output (MIMO) …

One of the major challenges with cell-free (CF) massive multiple-input multiple-output
(MIMO) networks is providing backhaul links for a large number of distributed access points …

In a cell-free (CF) massive MIMO architecture a very large number of distributed access
points (APs) simultaneously and jointly serves a much smaller number of mobile stations …

Massive multiple‐input multiple‐output (MIMO) systems are a core technology designed to
achieve the performance objectives defined for 5G wireless communications. They achieve …

In this paper, we consider the problem of user scheduling and pilot assignment in TDD
multicell multiuser Massive MIMO systems. While in TDD systems the channel is acquired …