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Covert Capacity of Non-Coherent Rayleigh-Fading Channels. (arXiv:1810.07687v1 [cs.IT])
来源于:arXiv
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. 查看全文>>