Strong Converse for a Degraded Wiretap Channel via Active Hypothesis Testing
arXiv:1410.0443
Abstract
We establish an upper bound on the rate of codes for a wiretap channel with public feedback for a fixed probability of error and secrecy parameter. As a corollary, we obtain a strong converse for the capacity of a degraded wiretap channel with public feedback. Our converse proof is based on a reduction of active hypothesis testing for discriminating between two channels to coding for wiretap channel with feedback.
This paper was presented at Allerton 2014