• Jamid Manzoor
• Sumeer Khajuria
• Dr. Sameru Sharma

This research investigates the secrecy outage probability (SOP) in Non-Orthogonal Multiple Access (NOMA) systems operating in a Nakagami fading channel. The study focuses on the optimization of various factors to enhance the security performance of NOMA communication. The key factors explored include distance between communicating entities, threshold rate, path loss component, shape forming parameter of Nakagami channel, and the impact of shadowing. The methodology involves extensive simulations conducted using MATLAB to analyze the SOP under varying conditions. Different scenarios, including varying distances, threshold rates, and path loss components, are considered to understand their influence on security in NOMA. Moreover, the shape forming parameter of the Nakagami channel is systematically studied to uncover its impact on secrecy. Furthermore, the research introduces the element of shadowing, investigating its effects on SOP in Nakagami channels. The analysis is presented through both line and bar graphs, providing a comprehensive comparison of SOP trends under different scenarios. Notably, the graphs illustrate the dynamic relationship between SOP and Signal-to-Noise Ratio (SNR), showcasing the practical implications of the findings. The outcomes of this study contribute valuable insights into the design and optimization of NOMA systems for secure communication in Nakagami fading channels. The findings, generated through MATLAB simulations and graphically depicted, aim to inform future developments in wireless communication systems, particularly those employing NOMA techniques.

NOMA, OMA, MIMO, Secrecy outage probability, Nakagami channel, Rayleigh channel, Rician channel, physical layer security, shadowing, eavesdropper, Signal-to-Noise Ratio (SNR)

"Optimization of different parameters of NOMA in Nakagami channel", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 1, page no.g98-g108, January-2024, Available :http://www.jetir.org/papers/JETIR2401613.pdf

"Optimization of different parameters of NOMA in Nakagami channel", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 1, page no. ppg98-g108, January-2024, Available at : http://www.jetir.org/papers/JETIR2401613.pdf