Soft fusion for covert communication is structurally limited as its optimal threshold is independent of the number of wardens, allowing robust covertness via power randomization.
Covert communi- cation using null space and 3d beamforming: Uncertainty of willie’s location information
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Structural Limits of Soft Fusion in Multi-Warden Covert Communication
Soft fusion for covert communication is structurally limited as its optimal threshold is independent of the number of wardens, allowing robust covertness via power randomization.