Graduate Seminar with Hien Ta: Covert Communication under Channel Uncertainty and Noise Uncertainty

Date/Time
Date(s) - 3 Apr 2019
1:00 PM - 2:00 PM

Location
2222 Coover Hall

Speaker: Hien Ta, ECpE Graduate Student

Adviser: Sang Wu Kim

Title: Covert Communication under Channel Uncertainty and Noise Uncertainty

Abstract: Covert or low probability of detection communication is crucial to protect user privacy and provide a strong security.  We analyze the joint impact of imperfect knowledge of the channel gain (channel uncertainty) and noise power (noise uncertainty) on the average probability of detection error at the eavesdropper  and the covert throughput in Rayleigh fading channel. We characterize the covert throughput gain provided by the channel uncertainty as well as the covert throughput loss caused by the channel fading as a function of the noise uncertainty. Our result shows that the channel fading is essential to hiding the signal transmission, particularly when the noise uncertainty is below a threshold and/or the receive SNR is above a threshold. The impact of the channel uncertainty on the average probability of detection error and covert throughput is more significant when the noise uncertainty is larger.

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Interested in giving a seminar? Contact Professor Namrata Vaswani.

Announcements and publicity by Kristin Clague, and scheduling by the department secretary.