The existing sub-6 GHz band is insufficient to support the bandwidth requirement of
emerging data-rate-hungry applications and Internet of Things devices, requiring …

Since the discovery of wireless telegraphy in 1897, wireless communication via
electromagnetic (EM) signals has become a standard solution to address increasing …

This paper proposes a multiuser physical layer secure transmission scheme for millimeter-
wave communication. We use Kronecker decomposition to design the common transmit …

Unmanned aerial vehicles (UAVs) are widely considered as key enablers for future wireless
networks due to their advantages, such as high mobility and flexible deployment. In this …

In cognitive radio networks, wireless nodes adapt to the surrounding radio environment and
utilize the spectrum of licensed users. The cognitive radio environment is dynamic, and …

In this paper, an underlay spectrum-sharing system with Alamouti orthogonal space–time
block coding (OSTBC) is considered to analyze and evaluate the physical layer security …