Scalar Gaussian Wiretap Channel: Bounds on the Support Size of the Secrecy-Capacity-Achieving Distribution

Document Type

Conference Proceeding

Publication Date

1-1-2021

Abstract

This work studies the secrecy-capacity of a scalar-Gaussian wiretap channel with an amplitude constraint on the input. It is known that for this channel, the secrecy-capacity-achieving distribution is discrete with finitely many points. This work improves such result by showing an upper bound of the order A^2σ_1^2 where A is the amplitude constraint and σ_1^2 is the variance of the Gaussian noise over the legitimate channel.

Identifier

85123453074 (Scopus)

ISBN

[9781665403122]

Publication Title

2021 IEEE Information Theory Workshop Itw 2021 Proceedings

External Full Text Location

https://doi.org/10.1109/ITW48936.2021.9611469

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