In recent years, unmanned aerial vehicles (UAVs) have received considerable attention from
regulators, industry and research community, due to rapid growth in a broad range of …

In millimeter-wave communication, large antenna arrays are required to achieve high power
gain by steering toward each other with narrow beams, which poses the problem to …

Terahertz (THz) communications open a new frontier for the wireless network thanks to their
dramatically wider available bandwidth compared to the current micro-wave and …

Terahertz (THz) communications with a frequency band 0.1–10 THz are envisioned as a
promising solution to future high-speed wireless communication. Although with tens of …

To support high data rate urgent or ad hoc communications, we consider mmWave UAV
cellular networks and the associated challenges and solutions. To enable fast beamforming …

Extremely large-scale array (XL-array) has emerged as a promising technology to improve
the spectrum efficiency and spatial resolution of future wireless systems. However, the huge …

Owing to abundant spectrum resources, millimeter wave (mmwave) communication
promises to provide Gbps data rates, which, however, may be restricted by large path-loss …

In this paper, we study hierarchical codebook design for channel estimation in millimeter-
wave (mmWave) communications with a hybrid precoding structure. Due to the limited …

Integrated sensing and communications (ISAC) has attracted tremendous attention for the
future 6G wireless communications systems. To improve the transmission rates and sensing …

The existing channel estimation methods for millimeter-wave communications, eg,
hierarchical search and compressed sensing, either acquire only one single multipath …