Intelligent Reflecting Surface (IRS)-Enabled Covert Communications in Wireless Networks

Understand

With growing security threats to the evolving wireless systems, protecting user privacy becomes progressively challenging.

• Even if the transmitted information is encrypted and the potential wiretap channel is physically limited (e.g.
• through information-theoretic security approaches), the raw data itself, such as transmitter position and transmission pattern, could expose confidential information.
• In this context, covert communication that intends to hide the existence of transmission from an observant adversary by exploiting the physical characteristics of the wireless medium has been actively investigated.