NOMA Security Analysis with STAR-RIS: Investigating Coverage Region and Outage Probability

• Published in: 2024 12th Iran Workshop on Communication and Information Theory (IWCIT) pp. 1 - 6
• Main Authors: Khales, Faramarz Ajami, Abed Hodtani, Ghosheh
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-05-2024
• Subjects: Mathematical analysis; NOMA; non-orthogonal multiple access; orthogonal multiple access; Probability; reconfigurable intelligent surface; Reconfigurable intelligent surfaces; secrecy coverage region; Secrecy outage probability; Simulation; simultaneous transmission and reflection; Stars; Wireless communication
• DOI: 10.1109/IWCIT62550.2024.10553072

This study investigates the application of simultaneous transmission and reflection (STAR) enabled by reconfigurable intelligent surface (RIS) in the context of both non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA) communication systems. As an advanced technology, STAR-RIS holds significant potential to enhance the performance of NOMA networks. The primary focus of this research is to assess how STAR-RIS influences key aspects of NOMA, specifically the secrecy coverage region (SCR) and secrecy outage probability (SOP). Through a comprehensive analysis of mathematical and simulation results, valuable insights into the synergy between STAR-RIS and NOMA are derived, illuminating advancements in secure and efficient communication systems. Furthermore, by examining the impact of STAR-RIS on OMA and comparing its performance with NOMA, the study demonstrates that the integration of STAR-RIS improves NOMA's performance, showcasing favorable outcomes compared to OMA.