Manchester Metropolitan University's Research Repository

    Physical Layer Security of Cooperative NOMA for IoT Networks under I/Q Imbalance

    Li, Xingwang, Zhao, Mengle, GAO, XIANGCHUAN, Li, Lihua, Do, Dinh-Thuan, Rabie, Khaled ORCID logoORCID: https://orcid.org/0000-0002-9784-3703 and Kharel, Rupak ORCID logoORCID: https://orcid.org/0000-0002-8632-7439 (2020) Physical Layer Security of Cooperative NOMA for IoT Networks under I/Q Imbalance. IEEE Access, 8. pp. 51189-51199. ISSN 2169-3536

    Published Version
    Available under License Creative Commons Attribution.

    Download (3MB) | Preview


    In this paper, we investigate the reliability and security of cooperative dual-hop non-orthogonal multiple access (NOMA) for internet-of-thing (IoT) networks, in which the transceivers consider a detrimental factor of in-phase and quadrature-phase imbalance (IQI). The communication between the source and destination is accomplished through a decode-and-forward (DF) relay in the presence of an eavesdropper. In order to characterize the performance of the considered system, exact analytical expressions for the outage probability (OP) and intercept probability (IP) are derived in closed-form. Furthermore, to better understanding the performance of the considered system, we further derive the asymptotic expressions of OP in the high signal-to-noise ratio (SNR) regime and IP at the high main eavesdropping ratio (MER) region. A large number of analysis and Monte Carlo simulation results show that the existence of IQI usually increases the corresponding OP and reduces the IP, which means that reduces the reliability of the system and improves the security. In addition, the provided results provide useful insights into the trade-off between reliability and security of secure cooperative communication systems.

    Impact and Reach


    Activity Overview
    6 month trend
    6 month trend

    Additional statistics for this dataset are available via IRStats2.


    Repository staff only

    Edit record Edit record