|Active Covert Sensing
|Mehrdad Tahmasbi, Matthieu Bloch, Georgia Institute of Technology, United States
|P.1: Covert Communications
|Cryptography, Security and Privacy
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|We formalize the problem of active covert sensing, in which a legitimate user wants to not only sense an unknown parameter but also remain undetectable from an adversary by actively controlling the actions that generate observations. We characterize the optimal achievable error exponent when the actions of the legitimate user do not depend on the past observations. When the actions are allowed to depend on the past observations, we provide an example showing the benefits of adaptivity.