This paper studies the physical layer security of an unmanned aerial vehicle (UAV) network,
where a UAV base station (UAV-B) transmits confidential information to multiple information …

Covert communications hide the transmission of a message from a watchful adversary while
ensuring a certain decoding performance at the receiver. In this paper, a wireless …

Covert wireless communication aims to hide the very existence of wireless transmissions in
order to guarantee a strong security in wireless networks. In this paper, we examine the …

Due to the open nature of wireless communication systems, the data transmission over
these networks are vulnerable to malicious attack. To safeguard the transmitted data …

Extensive research attentions have been devoted to studying cooperative cognitive radio
networks (CCRNs), where secondary users (SU) providing cooperative transmissions can …

In this paper, a practical wireless transmission scheme is proposed to transmit confidential
messages to the desired user securely and precisely by the joint use of multiple techniques …

In this work, we adopt channel inversion power control (CIPC) to achieve covert
communications aided by a full-duplex receiver. Specifically, the transmitter varies the power …

In this paper, we examine the physical layer security of a cooperative relay network where
two source-destination pairs communicate through a decode-and-forward (DF) relay in the …

This paper examines the possibility, performance limits, and associated costs for a self-
sustained relay to transmit its own covert information to a destination on top of forwarding the …

In this paper, we propose a novel beamforming design to enhance physical layer security of
a non-orthogonal multiple access (NOMA) system with the aid of artificial noise (AN). The …