Secrecy Performance of Dual-Hop Energy Harvesting NOMA Network with Alamouti/RAS Technique

Abstract

This study presents the secrecy outage performance (SOP) of the Alamouti/receive antenna selection (RAS) technique in a dual-hop non-orthogonal multiple access (NOMA) network taking advantage of simultaneous wireless information and power transfer (SWIPT). In the studied system, a base station (BS) using Alamouti coding serves multiple antenna users applying RAS simultaneously via energy harvesting (EH) enabled amplify-and-forward (AF) relay in the presence of an eavesdropper (EVE) applying maximum-ratio combinig (MRC). The SOP for users is presented through Monte Carlo simulations over Rayleigh fading channels. © 2025 Elsevier B.V., All rights reserved.