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arXiv · 2010.12938

Comments on "Precoding and Artificial Noise Design for Cognitive MIMOME Wiretap Channels"

Mahdi Khojastehnia·Sergey Loyka
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Abstract

Several gaps and errors in [1] are identified and corrected. While accommodating these corrections, a rigours proof is given that the successive convex approximation algorithm in [1] for secrecy rate maximization (SRM) does generate an increasing and bounded sequence of true secrecy rates and hence converges. It is further shown that its convergence point is a KKT point of the original SRM problem and, if the original problem is convex, this convergence point is globally-optimal, which is not necessarily the case in general. An interlacing property of the sequences of the true and approximate secrecy rates is established.

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Mahdi Khojastehnia, Sergey Loyka. 2020-10-24. Comments on "Precoding and Artificial Noise Design for Cognitive MIMOME Wiretap Channels". https://arxiv.org/abs/2010.12938

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