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    On physical layer security of multiple-relay assisted NOMA systems

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    Type
    Conference Paper
    Authors
    Lei, Hongjiang
    Yang, Zixuan
    Park, Kihong cc
    Ansari, Imran Shafique
    Pan, Gaofeng
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2019-07-12
    Online Publication Date
    2019-07-12
    Print Publication Date
    2019-05
    Permanent link to this record
    http://hdl.handle.net/10754/656765
    
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    Abstract
    This paper considers the secrecy outage performance of a multiple-relay assisted non-orthogonal multiple access (NOMA) network over Rayleigh fading channels. Two slots are utilized to transmit signals from the base station to destination. In the first slot, the base station broadcasts the superposition signal of two users to all decode-and-forward relays by message mapping strategy. Then the selected relay transmits superposition signal to the two users via power-domain NOMA. Two relay selection (RS) schemes, i.e., optimal single relay selection (OSRS) scheme and two-step single relay selection (TSRS) scheme, are proposed. As a benchmark, we also examine the secrecy outage performance of the traditional multiple relays combining (TMRC) scheme. The closed- form expressions for the security outage probability (SOP) of the proposed schemes are derived and validated via simulations. To get more insights, we also derive the closed-form expressions for the asymptotic SOP for all the schemes with fixed and dynamic power allocations. Monte-Carlo simulations are performed to verify our analytical results.
    Citation
    Lei, H., Yang, Z., Park, K.-H., Ansari, I. S., Pan, G., & Alouini, M.-S. (2019). On Physical Layer Security of Multiple-Relay Assisted NOMA Systems. 2019 IEEE International Conference on Communications Workshops (ICC Workshops). doi:10.1109/iccw.2019.8756959
    Publisher
    Institute of Electrical and Electronics Engineers Inc.
    Conference/Event name
    2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019
    DOI
    10.1109/ICCW.2019.8756959
    Additional Links
    https://ieeexplore.ieee.org/document/8756959/
    ae974a485f413a2113503eed53cd6c53
    10.1109/ICCW.2019.8756959
    Scopus Count
    Collections
    Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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