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 …

With the development of the sixth-generation wireless communication technology, the
difficulty of covert communication in the satellite communications system (SCS) is further …

Wireless systems have become an increasingly pivotal part of our lives. Various critical
applications and use cases such as healthcare, financial transactions, e-commerce …

In this paper, a novel system utilizing a hybrid relay-intelligent reflecting surface (HR-IRS) to
boost the security performance of directional modulation (DM) is established. In particular …

Recently, intelligent reflecting surfaces (IRSs) and unmanned aerial vehicles (UAVs) have
been integrated into wireless communication systems to enhance the performance of air …

Reconfigurable intelligent surfaces (RISs) play an important role in extending the
connectivity and improving the data rate of future wireless communication systems …

In this work, the covert communication performance for reconfigurable intelligent surface
(RIS) based communication systems in the presence of a warden is analyzed. In particular …