Internet of Things (IoT) systems are of paramount importance to provide ubiquitous wireless
connectivity for smart cities. However, such systems are facing security challenges due to …

In this work, we investigate the status packet covert communication with time uncertainty in
time-critical wireless networks. We model the packet generation as a Poisson process that …

Communication performance relies largely on the availability of channel state information
(CSI). This paper investigates the impact of outdated CSI on the achievable covert …

This paper investigates the covert communications via cooperative jamming and relay
selection in a wireless relay system, where a source intends to transmit a message to its …

With the assistance of device-to-device (D2D) communications, unmanned aerial vehicle
(UAV) networks are anticipated to support widespread applications in fifth generation (5G) …

This paper focuses on the covert communication in a two-hop relay system consisting of a
transmitter, a relay, a receiver and a warden, where the relay can flexibly select between the …

Wireless connectivity in smart cities relies on widely deployed Internet of Things (IoT)
systems. However, the broadcast and open nature of wireless channels in such systems …

This paper investigates the covert communications via cooperative jamming and relay
selection in a wireless relay system, where a source intends to transmit a message to its …

Protocol Design and Performance Analysis for Covert Communications in Relay-Assisted
Wireless Systems Page 1 Protocol Design and Performance Analysis for Covert Communications …

This paper focuses on a UAV covert communication system with a full-duplex receiver and
investigates the location design of such system based on physical layer security technology …