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arXiv · 2102.11336

Covert MIMO Communications under Variational Distance Constraint

Shi-Yuan Wang·Matthieu R. Bloch
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Abstract

The problem of covert communication over Multiple-Input Multiple-Output (MIMO) Additive White Gaussian Noise (AWGN) channels is investigated, in which a transmitter attempts to reliably communicate with a legitimate receiver while avoiding detection by a passive adversary. The covert capacity of the MIMO AWGN is characterized under a variational distance covertness constraint when the MIMO channel matrices are static and known. The characterization of the covert capacity is also extended to a class of channels in which the legitimate channel matrix is known but the adversary's channel matrix is only known up to a rank and a spectral norm constraint.

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Shi-Yuan Wang, Matthieu R. Bloch. 2021-02-22. Covert MIMO Communications under Variational Distance Constraint. https://doi.org/10.1109/tifs.2021.3110048

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