5 papers
Keyless Covert Communication Over Quantum MACs with General Message Sets
Hassan ZivariFard, Xiaodong Wang
We study covert classical communication over quantum multiple-access channels (MACs) with general message sets. Specifically, we consider a fully quantum MAC with arbitrary message…
Covert Communication Over a Quantum MAC with a Helper
Hassan ZivariFard, Rémi A. Chou, Xiaodong Wang
We study covert classical communication over a quantum multiple-access channel (MAC) with a helper. Specifically, we consider three transmitters, where one transmitter helps the ot…
Resource Allocation for Positive-Rate Covert Communications Using Optimization and Deep Reinforcement Learning
Yubo Zhang, Hassan ZivariFard, Xiaodong Wang
We aim to achieve keyless covert communication with a positive-rate in Rayleigh block-fading channels. Specifically, the transmitter and the legitimate receiver are assumed to have…
Covert Communication and Key Generation Over Quantum State-Dependent Channels
Hassan ZivariFard, Rémi A. Chou, Xiaodong Wang
We study covert communication and covert secret key generation with positive rates over quantum state-dependent channels. Specifically, we consider fully quantum state-dependent ch…
Covert Communication via Action-Dependent States
Hassan ZivariFard, Xiaodong Wang
This paper studies covert communication over channels with ADSI when the state is available either non-causally or causally at the transmitter. Covert communication refers to relia…