Fifth generation (5G) mobile communication systems have entered the stage of commercial
deployment, providing users with new services, improved user experiences as well as a host …

As the standardization of 5G solidifies, researchers are speculating what 6G will be. The
integration of sensing functionality is emerging as a key feature of the 6G Radio Access …

Extremely large-scale antenna arrays, tremendously high frequencies, and new types of
antennas are three clear trends in multi-antenna technology for supporting the sixth …

Unmanned aerial vehicles (UAVs) have found widespread commercial, civilian, and military
applications. Wireless communication has always been one of the core technologies for …

Reconfigurable intelligent surfaces (RIS) is a promising solution to build a programmable
wireless environment via steering the incident signal in fully customizable ways with …

Large antenna arrays and high-frequency bands are two key features of future wireless
communication systems. The combination of large-scale antennas with high transmission …

In this paper, intelligent reflecting surfaces (IRSs) are employed to enhance the physical
layer security in a challenging radio environment. In particular, a multi-antenna access point …

Intelligent reflecting surfaces (IRSs) constitute a disruptive wireless communication
technique capable of creating a controllable propagation environment. In this paper, we …

Spatial division multiple access (SDMA) is essential to improve the spectrum efficiency for
multi-user multiple-input multiple-output (MIMO) communications. The classical SDMA for …

Fifth-generation (5G) cellular networks will almost certainly operate in the high-bandwidth,
underutilized millimeter-wave (mmWave) frequency spectrum, which offers the potentiality of …