RT info:eu-repo/semantics/article
T1 Physical layer security in FAS-aided wireless powered NOMA systems
A1 Rostami Ghadi, Farshad
A1 Kaveh, Masoud
A1 Wong, Kai-Kit
A1 Martín De Andrés, Diego
A1 Jäntti, Riku
A1 Yan, Zheng
K1 Wireless powered communication network
K1 Fluid antenna system
K1 Physical layer security
K1 Non-orthogonal multiple access
K1 Secrecy outage probability
K1 Average secrecy capacity
K1 1203.17 Informática
AB The rapid evolution of communication technologies and the emergence of sixth-generation (6G) networks haveintroduced unprecedented opportunities for ultra-reliable, low-latency, and energy-efficient communication.Integrating technologies like non-orthogonal multiple access (NOMA) and wireless powered communicationnetworks (WPCNs) brings new challenges. These include energy constraints and increased security vulnera-bilities. Traditional antenna systems and orthogonal multiple access schemes struggle to meet the increasingdemands for performance and security in such environments. To address this gap, this paper investigatesthe impact of emerging fluid antenna systems (FAS) on the performance of physical layer security (PLS) inWPCNs. Specifically, we consider a scenario in which a transmitter, powered by a power beacon via an energylink, transmits confidential messages to legitimate FAS-aided users over information links while an externaleavesdropper attempts to decode the transmitted signals. Additionally, users leverage the NOMA scheme,where the far user may also act as an internal eavesdropper. For the proposed model, we first derive thedistributions of the equivalent channels at each node and subsequently obtain compact expressions for thesecrecy outage probability (SOP) and average secrecy capacity (ASC), using the Gaussian quadrature methods.Our results reveal that incorporating the FAS for NOMA users, instead of the TAS, enhances the performanceof the proposed secure WPCN
PB Elsevier
SN 0140-3664
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/78658
UL https://uvadoc.uva.es/handle/10324/78658
LA eng
NO Computer Communications, 2025, vol. 242, p. 108274
NO Producción Científica
DS UVaDOC
RD 26-nov-2025