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Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces

Reconfigurable intelligent surfaces (RIS) are considered of paramount importance to improve air–ground and THz communications performance for 6G systems. Recently, RISs were proposed in Physical Layer Security (PLS), as they can (i) improve the secrecy capacity due to the controlled directional refl...

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Autores principales: Chiti, Francesco, Degl’Innocenti, Ashley, Pierucci, Laura
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007357/
https://www.ncbi.nlm.nih.gov/pubmed/36904928
http://dx.doi.org/10.3390/s23052726
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author Chiti, Francesco
Degl’Innocenti, Ashley
Pierucci, Laura
author_facet Chiti, Francesco
Degl’Innocenti, Ashley
Pierucci, Laura
author_sort Chiti, Francesco
collection PubMed
description Reconfigurable intelligent surfaces (RIS) are considered of paramount importance to improve air–ground and THz communications performance for 6G systems. Recently, RISs were proposed in Physical Layer Security (PLS), as they can (i) improve the secrecy capacity due to the controlled directional reflections’ capability of RIS elements and (ii) avoid potential eavesdroppers, redirecting data streams towards the intended users. This paper proposes the integration of a multi-RISs system within a Software Defined Networking (SDN) architecture to provide a specific control layer for secure data flows forwarding. The optimisation problem is properly characterised in terms of an objective function and an equivalent graph theory model is considered to address the optimal solution. Moreover, different heuristics are proposed, trading off complexity and PLS performance, to evaluate the more suitable multi-beam routing strategy. Numerical results are also provided, focusing on a worst case scenario which points out the improvement of the secrecy rate from the increase in the number of eavesdroppers. Furthermore, the security performance is investigated for a specific user mobility pattern in a pedestrian scenario.
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spelling pubmed-100073572023-03-12 Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces Chiti, Francesco Degl’Innocenti, Ashley Pierucci, Laura Sensors (Basel) Article Reconfigurable intelligent surfaces (RIS) are considered of paramount importance to improve air–ground and THz communications performance for 6G systems. Recently, RISs were proposed in Physical Layer Security (PLS), as they can (i) improve the secrecy capacity due to the controlled directional reflections’ capability of RIS elements and (ii) avoid potential eavesdroppers, redirecting data streams towards the intended users. This paper proposes the integration of a multi-RISs system within a Software Defined Networking (SDN) architecture to provide a specific control layer for secure data flows forwarding. The optimisation problem is properly characterised in terms of an objective function and an equivalent graph theory model is considered to address the optimal solution. Moreover, different heuristics are proposed, trading off complexity and PLS performance, to evaluate the more suitable multi-beam routing strategy. Numerical results are also provided, focusing on a worst case scenario which points out the improvement of the secrecy rate from the increase in the number of eavesdroppers. Furthermore, the security performance is investigated for a specific user mobility pattern in a pedestrian scenario. MDPI 2023-03-02 /pmc/articles/PMC10007357/ /pubmed/36904928 http://dx.doi.org/10.3390/s23052726 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chiti, Francesco
Degl’Innocenti, Ashley
Pierucci, Laura
Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title_full Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title_fullStr Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title_full_unstemmed Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title_short Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
title_sort secure networking with software-defined reconfigurable intelligent surfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007357/
https://www.ncbi.nlm.nih.gov/pubmed/36904928
http://dx.doi.org/10.3390/s23052726
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