National Institute of Technology Rourkela

राष्ट्रीय प्रौद्योगिकी संस्थान राउरकेला

ଜାତୀୟ ପ୍ରଯୁକ୍ତି ପ୍ରତିଷ୍ଠାନ ରାଉରକେଲା

An Institute of National Importance

Seminar Details

Seminar Title:
Secrecy Performance Analysis of RIS-assisted System Under Nakagami-m Fading.
Seminar Type:
Departmental Seminar
Department:
Electronics and Communication Engineering
Speaker Name:
Richa Verma
Speaker Type:
Student
Venue:
EC303, Seminar Room
Date and Time:
03 Jan 2025 10.00AM
Contact:
Dr. Pawan Kumar
Abstract:
In this paper, we consider a system comprising a source node, two reconfigurable intelligent surface (RIS) nodes, a legitimate destination, and an eavesdropper. One of the two RIS sides supports the legitimate destination in enhancing its data detection capability. The second RIS side is malicious and assists the eavesdropper in overhearing legitimate communication. The system is affected under Nakagami-m fading. We analyze the secrecy performance of the system in terms of secrecy outage probability (SOP), probability of strictly positive secrecy capacity (PSPSC), secrecy ergodic capacity (SEC), and intercept probability (IP). We opt for generalized-K (KG) and mixture gamma (MG)-based approximation methods to provide an accurate analysis for an arbitrary number of RIS-reflecting elements and fading parameters. We also derive the asymptotic SOP expression to provide a simplified analysis at high signal-to-noise ratios (SNRs). The analytical results are validated with the simulated results. We also highlight some observations drawn based on the analysis.