Autors: Mihaylova, D. A., Kuzmanova, I., Stoynov, V. R., Ivanov, A. S., Valkova-Jarvis, Z. V., Iliev, G. L.
Title: Physical Layer Security Methods against Eavesdropping on the Far User by the Near User in NOMA Networks – a Comparison
Keywords: physical layer security, non-orthogonal multiple access, eavesdropping

Abstract: The close relationship between multiple access technologies and efficient spectrum utilization makes power-domain non-orthogonal multiple access (NOMA) an attractive solution that enables the support of high data rates, user fairness and low-latency communications in 5G and beyond networks. However, user pairing and successive interference cancelation applied in NOMA facilitates eavesdropping on the far user’s signal by the near user establishing security as a main issue in NOMA systems. Due to their numerous advantages, the means of physical layer security are extremely suitable to combat internal NOMA eavesdropping. Up to the present only a few studies exist which examine different physical layer security approaches against eavesdropping on the far user by the near user. Among them are a joint beamforming and power allocation algorithm, an angle conversion method that alters the original signal constellation before transmission, and a directional modulation approach.



    in Proceedings of International Scientific Conference of Communictions, Information, Electronic and Energy Systems (CIEES), Ruse, Bulgaria, 25-27 November, 2021; AIP Conference Proceedings, vol. 2570, issue 1, pp. art. # 020022, 2022, Bulgaria, AIP Conference Proceedings, vol. 2570, no. 1, ISBN: 978-073544375-4; ISSN: 0094243X; DOI: 10.1063/5.0100040

    Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science