e-space
Manchester Metropolitan University's Research Repository

    Secure Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance

    LI, Xingwang, Zhao, Mengle, Zhang, Changsen, Khan, Wali Ullah, Wu, Jun, Rabie, Khaled ORCID logoORCID: https://orcid.org/0000-0002-9784-3703 and Kharel, Rupak ORCID logoORCID: https://orcid.org/0000-0002-8632-7439 (2019) Secure Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance. Electronics (Basel), 8 (11). p. 1327.

    [img]
    Preview
    Published Version
    Available under License Creative Commons Attribution.

    Download (1MB) | Preview

    Abstract

    This paper investigates the reliability and security performance of the downlink non-orthogonal multiple access (NOMA) networks over Nakagami-m fading channels, where the base station (BS) aims to communicate with multi-antenna NOMA users in the presence of a multi-antenna eavesdropper. To be more practical, a detrimental factor at both transmitter and receiver is considered, namely in-phase and quadrature-phase imbalance (IQI). To further improve the reliability and security of the considered networks, the selection combining (SC) algorithm at the receiver is taken into account. More specifically, the exact analytical expressions for the outage probability (OP) and the intercept probability (IP) are derived in closed-form. To obtain a better understanding of the influence for the IQI parameters on the system performance, the asymptotic behaviors for the outage probabilities (OPs) in the high signal-to-noise ratio (SNR) region are analyzed. Based on the asymptotic results, the diversity order of the considered system are obtained and discussed. The numerical results are presented to verify the validity of the theoretical analysis.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    286Downloads
    6 month trend
    299Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record