Zaghdoud, NesrineMnaouer, Adel BenAlouane, Wided HadjBoujemaa, HatemTouati, Farid2021-02-102021-02-10© 20202020-10-27Zaghdoud, N., Mnaouer, A. B., Alouane, W. H., Boujemaa, H., & Touati, F. (2020, October). Secure Performance of DF Relaying in Cooperative NOMA over Rician Fading Channels. In 2020 IEEE Eighth International Conference on Communications and Networking (ComNet) (pp. 1-6). IEEE. https://doi.org/10.1109/ComNet47917.2020.9306070978-172815320-9https://doi.org/10.1109/ComNet47917.2020.9306070http://hdl.handle.net/20.500.12519/333This conference paper is not available at CUD collection. The version of scholarly record of this conference paper is published in 2020 IEEE Eighth International Conference on Communications and Networking (ComNet) (2020), available online at: https://doi.org/10.1109/ComNet47917.2020.9306070In this paper, a Decode-and-Forward (DF) relaying system for Non Orthogonal Multiple Access (NOMA) networks is considered, where the transmitted information between the relay and NOMA users can be overheard by an eavesdropper. In this context, we study the secrecy performance of the considered scenario under combined path loss and Rician fading. We derive novel expressions of the Secrecy Outage Probability (SOP) and the Strictly Positive Secrecy Capacity (SPSC) metrics. More Specifically, we provide the exact SOP and SPSC expressions of the near user. Unlikely, closed form expressions of the SOP and SPSC metrics for the far user are given in high signal-to-noise ratio (SNR) because of the intractable nature of the exact expressions. On this basis, numerical analysis has been firstly conducted to verify the analytical expressions. Then, the results are provided to assess the secrecy performance of our system under the effects of different network parameters. © 2020 IEEE.enPermission to reuse abstract has been secured from Institute of Electrical and Electronics Engineers Inc.Decode-and-ForwardNOMARician fadingSecrecy Outage ProbabilitySecurityStrictly Positive Secrecy CapacityFading channelsAnalytical expressionsClosed-form expressionDecodeandforward relayingHigh signalto-noise ratios (SNR)Multiple accessNetwork parametersRician fading channelSecrecy outage probabilitiesSignal to noise ratioConference PaperCopyright : 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.