Abstract The Internet of Medical Things (IoMT)-enabled e-healthcare can complement
traditional medical treatments in a flexible and convenient manner. However, security and …

In this paper, an intelligent reflecting surface (IRS) assisted spectrum sharing underlay
cognitive radio (CR) wiretap channel (WTC) is studied, and we aim at enhancing the secrecy …

Cyber-security threats and issues have been exponentially increasing over the last two
decades, including in cognitive radio networks. These attacks and vulnerabilities negatively …

Transmit beamforming and artificial noise-based methods have been widely employed to
achieve physical-layer (PHY) security. However, these approaches may fail to provide …

We consider a full-duplex (FD) multiuser system where an FD base station (BS) is designed
to simultaneously serve both downlink (DL) and uplink (UL) users in the presence of half …

This paper considers secure communications for an underlay cognitive radio network (CRN)
in the presence of an external eavesdropper (Eve). The secrecy performance of CRNs is …

Autonomous driving is considered one of the killer technologies in the intelligent era. The
information transmission between autonomous vehicles and pedestrians (V2P) is very …

In this paper, we investigate the power allocation of primary base station (PBS) and
cognitive base station (CBS) across different orthogonal frequency division multiplexing …

In this paper, a coordinated multiple-relays-based cooperative communication scheme is
proposed to improve the physical-layer security. In order to benefit the relays in forwarding …

In this paper, a novel multi-beam transmission scheme is proposed to enhance physical
layer (PHY) security. This scheme utilizes index modulation (IM) based on frequency diverse …