On the secrecy performance of RIS-enabled wireless communications over Nakagami-m fading channels

• Autor(a) principal: Yadav, Ashutosh K.
• Data de Publicação: 2023
• Outros Autores: Yadav, Suneel, Pandey, Anshul, Silva, Adão
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/39176
• topic: Reconfigurable intelligent surface; Physical layer security; Secrecy outage probability; Ergodic secrecy capacity; Nakagami-m fading channels

This paper examines the secrecy performance of reconfigurable intelligent surface aided wireless communication systems. Specifically, we derive the secrecy outage probability (SOP), intercept probability, probability of non-zero secrecy capacity, and ergodic secrecy capacity (ESC) expressions over Nakagami-m fading channels. We further evaluate the asymptotic SOP expressions to get some insights into the secrecy diversity order under two scenarios of interest; (1) when the signal-to-noise ratio approaches infinity, and (2) when the main-to-eavesdropper ratio tends to infinity. Also, we analytically show the effect of reflecting element density on the ESC performance. The numerical and simulation studies verify our analytical findings.