Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios

Autor:	Maximilian Matthé, Arsenia Chorti
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	physical layer security secret key generation directional statistics von-Mises distribution Science Astrophysics QB460-466 Physics QC1-999
Zdroj:	Entropy, Vol 25, Iss 7, p 1038 (2023)
Druh dokumentu:	article
ISSN:	1099-4300
DOI:	10.3390/e25071038
Popis:	The mutual information of the observed channel phase between devices can serve as an entropy source for secret key generation in line-of-sight scenarios. However, so far only simulated and numeric results were available. This paper derives the probability distribution of the channel phase and corresponding expressions for the mutual information. Moreover, the orientation distribution is optimized in order to maximize the mutual information. All presented results are validated numerically. These outcomes serve as a basis for further analytic investigations on the secret key generation rate and subsequent physical layer security performance analysis in line-of-sight scenarios, such as those encountered in drone-aided communications.
Databáze:	Directory of Open Access Journals
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