Physical Layer Security in RIS-assisted Networks in Fisher-Snedecor Composite Fading

Abubakar Makarfi, Khaled Rabie, Omprakash Kaiwartya, Osamah Badarneh, Galymzhan Nauryzbayev, Rupak Kharel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

In this study, we investigate the physical layer security (PLS) of a reconfigurable intelligent surface (RIS) enabled system over generalized fading channels. The RIS concept is becoming an essential technology for the achievement of smart radio environments, where large number of passive, miniature cells, are designed to influence incident signal. Key benefits have been demonstrated for RIS-assisted PLS purposes, due to the flexibility of simultaneously enhancing or suppressing signal beams to different users. Due to the potential of such RIS-assisted systems as reported in the literature, we study a system with a RIS-based access point for transmission, at the source node. The system is modelled with reference to a receiver transmitter pair in the presence of an eavesdropper. The Fisher-Snedecor model is adopted to analyse the composite fading and shadowing channel. Expressions are derived for the average secrecy capacity and secrecy outage probability of the network. The derived expressions can be adopted for the PLS analysis of RIS-assisted networks for several common distributions such as Rayleigh, Nakagami-m and the one-sided Gaussian distributions. The results were validated using Monte-Carlo simulations. The results indicate the clear secrecy benefit of employing a RIS-enabled access point for various fading and shadowing conditions.

Original languageEnglish
Title of host publication2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing
Subtitle of host publicationCSNDSP 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781728167435
ISBN (Print)9781728160511
DOIs
Publication statusPublished - 10 Nov 2020
Externally publishedYes
Event12th International Symposium on Communication Systems, Networks and Digital Signal Processing - Porto, Portugal
Duration: 20 Jul 202022 Jul 2020
Conference number: 12

Conference

Conference12th International Symposium on Communication Systems, Networks and Digital Signal Processing
Abbreviated titleCSNDSP 2020
Country/TerritoryPortugal
CityPorto
Period20/07/2022/07/20

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