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Covert Wireless Communication with Artificial Noise Generation
Ramin Soltani, Dennis Goeckel, Don Towsley +2
Covert communication conceals the transmission of the message from an attentive adversary. Recent work on the limits of covert communication in additive white Gaussian noise (AWGN)…
Fundamental limits of quantum-secure covert optical sensing
Boulat A. Bash, Christos N. Gagatsos, Animesh Datta +1
We present a square root law for active sensing of phase of a single pixel using optical probes that pass through a single-mode lossy thermal-noise bosonic channel. Specificall…
Bounding the quantum limits of precision for phase estimation with loss and thermal noise
Christos N. Gagatsos, Boulat A. Bash, Saikat Guha +1
We consider the problem of estimating an unknown but constant carrier phase modulation using a general -- possibly entangled -- -mode optical probe through independent a…