Information security has always been a critical issue in wireless networks. Apart from other
secure techniques, covert communication emerges as a potential solution to security for …

Unmanned aerial vehicles (UAVs) are envisioned to be extensively employed for assisting
wireless communications in the Internet of Things (IoT). On the other hand, terahertz (THz) …

In this work, we investigate a novel covert communication system, where the legitimate
transmitter attempts to communicate with a covert user in the presence of a warden and the …

Physical layer covert communication is a crucial secure communication technology that
enables a transmitter to convey information covertly to a recipient without being detected by …

Despite its potential for reducing the detection probability at the warden, the effectiveness of
covert communication in practical situations is often hindered by harsh wireless signal …

This letter studies a wireless covert communication system, where a jammer generating
intermittent artificial noise (AN) is employed to confuse the warden. The transmission …

In tis article, we propose an unmanned aerial vehicle carrying intelligent reflecting surface
(IRS-UAV) as a relaying node to assist covert communication system (CCS). To ensure the …

The letter proposes resource allocation in uplink covert communication systems, which aim
to hide the existence of the covert user from the warden. The wireless system consists of a …

Mobile edge computing (MEC) is a key enabling technology for the sixth-generation (6G)
wireless networks. In this paper, we apply covert communications to MEC to prevent …

为了满足未来无线通信系统高谱效, 高能效的要求, 智能反射表面(IRS) 技术得到了广泛的关注与
研究. 通过对IRS 进行设计优化, 能够从不同的角度增强无线通信系统的物理层安全(PLS) …