The capacity of cellular networks can be improved by the unprecedented array gain and
spatial multiplexing offered by Massive MIMO. Since its inception, the coherent interference …

This paper proposes a unified transmission strategy for multiuser time division duplex
(TDD)/frequency division duplex (FDD) massive multiple-input-multiple-output (MIMO) …

Next-generation cellular technologies, commonly referred to as the sixth generation (6G),
are envisioned to support a higher system capacity, better performance, and network …

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 …

Millimeter wave (mmWave) communication is a promising technology for future wireless
systems, while one practical challenge is to achieve its large-antenna gains with only limited …

Unmanned aerial vehicle (UAV) has been widely used in many fields and is arousing global
attention. As the resolution of the equipped sensors in the UAV becomes higher and the …

Millimeter-wave (mmWave) communication with multi-gigahertz bandwidth availability
enables much higher capacity and transmission rate than conventional microwave …

Massive multiple-input multiple-output is a promising physical layer technology for 5G
wireless communications due to its capability of high spectrum and energy efficiency, high …

In this paper, we investigate secure and reliable transmission strategies for multi-cell multi-
user massive multiple-input multiple-output systems with a multi-antenna active …

The space-air-ground-sea integrated network (SAGSIN) plays an important role in offering
global coverage. To improve the efficient utilization of spectral and hardware resources in …