Covert Capacity of Non-Coherent Rayleigh-Fading Channels
Information Theory
2019-11-12 v2 math.IT
Abstract
The covert capacity is characterized for a non-coherent fast Rayleigh-fading wireless channel, in which a legitimate user wishes to communicate reliably with a legitimate receiver while escaping detection from a warden. It is shown that the covert capacity is achieved with an amplitude-constrained input distribution that consists of a finite number of mass points including one at zero and numerically tractable bounds are provided. It is also conjectured that distributions with two mass points in fixed locations are optimal.
Keywords
Cite
@article{arxiv.1810.07687,
title = {Covert Capacity of Non-Coherent Rayleigh-Fading Channels},
author = {Mehrdad Tahmasbi and Anne Savard and Matthieu R. Bloch},
journal= {arXiv preprint arXiv:1810.07687},
year = {2019}
}