… Here, covert means that a warden on the channel should … covert communication rate (covert
capacity) for discrete memoryless channels and, when the transmitter’s channel-state …

… receiver has to know the channel state information in order to … covert communications in
terms of the effective covert rate (… serves as the enabler of covert communications. For fairness, …

… of covert communication 296 over state-dependent channels … channels in which the 299
channel state can in principle be cancelled and the latter 300 representing fading-like channels…

… This paper considers the covert communication over the MISO LoS channel. Achieving the
positive rate by beamforming is discussed. However, the relationship of Alice and Willie is not …

… consider the problem of covert communication over a state-dependent channel, for which …
non-causal access to the channel state information. Covert communication with respect to an …

… Abstract—We consider the problem of covert communication when Channel State … case
when channel state information is only available at the transmitter. Covert communication with …

… We extend the proposed covert communication scheme to include secrecy constraints (Theorem
5). • We partially extend the results to continuous channels, and in particular to Additive …

… tion of covert communication, while Section IV quantifies the achievable performance of our
covert communication … The null hypothesis (𝐻0) states that Alice did not talk to Bob, while the …

… aims at achieving a reliable communication while ensuring an arbitrary small probability of
… channel state information (CSI) to further improve the performance of covert communication. …

… Alice is communicating, … , covert communication against active adversaries requires Alice
and Bob to have a shared key (of length at least Ω(log n)) even when Bob has a better channel …