With the emergence of fifth-generation cellular networks (5G), there has been significant
interest in multi-input-multi-output (MIMO) systems. MIMO systems aim to achieve several …

In this article, an optimal beamforming technique using a low cost intelligent Rotman lens
antenna is proposed. The proposed technique enjoys full diversity with high coding gain …

Beamspace multiple-input multiple-output (B-MIMO) systems with proper beam selection
(BS) promise to lower the radio-frequency (RF) chains overhead with no noticeable …

A reconfigurable intelligent surface (RIS) is a type of metasurface that can dynamically
control the reflection and transmission of electromagnetic waves, such as radio waves, by …

The ever-growing demand for higher data rates and greater data capacity at lower cost has
led the mobile cellular industry to investigate new physical layer techniques and possible …

A reconfigurable intelligent surface (RIS) is a kind of metasurface that provides an adaptable
way of controlling the propagation of radio signals in wireless systems, allowing for …

Consider a millimeter‐wave (mmWave) massive multiple‐input multiple‐output (MIMO)
system, where a base station (BS) relying on discrete lens antenna (DLA) array transmits …

In this letter, we propose a blockwise phase rotation-aided analog transmit beamforming
(BPR-ATB) scheme to improve the spectral efficiency and the bit-error-rate (BER) …

Beamspace massive multiple-input multiple-output (MIMO) can reduce the number of
required radio-frequency (RF) chains without obvious performance loss. However, the joint …

In the twenty-first century, human society relies heavily on wireless technology, whether for
short-distance communication such as Bluetooth or long-distance communication such as …