An unsupervised detector combining a parametric Gamma reference model with a data-learned normalizing flow achieves near-supervised monitoring performance for covert communications against a disco RIS warden.
Toward smart wireless communications via intelligent reflecting surfaces: A contemporary survey,
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Unsupervised Semi-Parametric Plug-in Likelihood-Ratio Detection for Covert Communications in the Presence of Disco Reconfigurable Intelligent Surfaces
An unsupervised detector combining a parametric Gamma reference model with a data-learned normalizing flow achieves near-supervised monitoring performance for covert communications against a disco RIS warden.