The reconfigurable intelligent surface (RIS) is an emerging technology, which will hopefully
bring a new revolution in wireless communications. The RIS technology can be deployed in …

Hybrid-field channel estimation for extremely large-scale massive MIMO (XL-MIMO) system
is discussed in this letter. By exploiting the structural characteristics of far-field path …

Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) system with lens
antenna array can achieve extremely high data rates with limited radio frequency (RF) …

Hybrid beamforming can provide rapid data transmission rates while reducing the
complexity and cost of massive multiple-input multiple-output (MIMO) systems. However …

Massive multiple-input-multiple-output (MIMO) and millimeter wave have been adopted as
the enabling technologies for the 5G and beyond 5G (B5G) systems. A challenging problem …

Channel estimation is a challenging issue for millimeter wave (mmWave) and massive
multiple-input multiple-output (MIMO) in the future sixth generation (6G) wireless systems …

Millimeter-wave (mmWave) communications have been one of the promising technologies
for future wireless networks that integrate a wide range of data-demanding applications. To …

In order to reduce the hardware complexity and cost of mmWave transceivers, hybrid
beamforming techniques have been developed, which rely on the channel state information …

This paper discusses beamspace target height estimation for bistatic multiple-input multiple-
output (MIMO) radars. Beamspace super-resolution algorithms for target height estimation …

Lens antenna subarray (LAS) is one of the recently introduced technologies for future
wireless networks that significantly improves the energy efficiency of multiple-input multiple …