The recent concept of massive multiple-input multiple-output (MIMO) can significantly
improve the capacity of the communication network, and it has been regarded as a …

Channel estimation is very challenging when the receiver is equipped with a limited number
of radio-frequency (RF) chains in beamspace millimeter-wave massive multiple-input and …

This paper proposes a novel direction-of-arrival (DOA)-aided channel estimation for a hybrid
millimeter-wave (mm-wave) massive multiple-input multiple-output system with a uniform …

This paper considers the beamspace channel estimation problem in three-dimensional (3D)
lens antenna array under a millimeter-wave communication system. We analyze the …

Millimeter wave (mmWave) frequencies offer huge transmission bandwidths and allow
packing a large number of antennas within a given aperture area, enabling high …

This paper investigates the relay hybrid precoding design in millimeter-wave massive
multiple-input multiple-output systems. The optimal design of the relay hybrid precoding is …

In beam-based massive multiple-input multiple-output systems, signals are processed
spatially in the radio-frequency (RF) front end and thereby the number of RF chains can be …

In this paper, a framework of beamspace channel estimation in millimeter wave massive
MIMO system is proposed. The framework includes the design of hybrid precoding and …

Beamspace channel estimation is essential for wideband millimeter-wave (mmWave) MIMO
with lens antenna array to achieve substantial increase in data rates with considerably …

The requirement of the increasing capacity of the communication networks promotes the
massive multiple input multiple output (MIMO), which has attracted a lot of attention among …