The Internet of Things (IoT) is a transformative technology, which is revolutionizing our
everyday life by connecting everyone and everything together. The massive number of …

Covert communications enable a transmitter to send information reliably in the presence of
an adversary, who looks to detect whether the transmission took place or not. We consider …

In this paper, we investigate the covert communications in an overlay cognitive radio (CR)
network, where multiple secondary transmitters (STs) opportunistically send confidential …

Relay selection is proposed in this paper as an efficient solution to secure information
transmission of secondary users against eavesdroppers in energy harvesting cognitive …

In multiple access systems, physical layer security is degraded since more attacking targets
are available for the eavesdropper. Fortunately, it has been recently demonstrated that non …

In a wiretap channel, due to the passive nature of eavesdropper and the inevitable errors
during channel estimation or feedback, the channel state information is usually imperfectly …

Covert communication provides high-level security for protecting users' privacy information.
In this paper, we analyze the joint impact of an external jammer and channel uncertainty on …

Using a well-known wiretap model, for the first time in this paper, closed-form solutions are
achieved for wireless secrecy under dual correlated Rician fading. A novel wireless secrecy …

Surveillance performance is studied in this paper for a wireless eavesdropping system,
where a full-duplex legitimate monitor eavesdrops a suspicious link efficiently with the …

This paper studies the noise aggregation scheme with convolutional code in frequency-flat
block-fading channel. While there is still a lot of limitation in the noise aggregation scheme …