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    Secure Analysis of Multi-Antenna Cooperative Networks with Residual Transceiver HIs and CEEs

    Li, Xingwang, Huang, Mengyan, Li, Jingjing, Yu, Qingping, Rabie, Khaled ORCID logoORCID: https://orcid.org/0000-0002-9784-3703 and Cavalcante, Charles Casimiro (2019) Secure Analysis of Multi-Antenna Cooperative Networks with Residual Transceiver HIs and CEEs. IET Communications, 13 (17). pp. 2649-2659. ISSN 1751-8628

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    In this paper, we investigate the secure performance of multi-antenna decode-and-forward (DF) relaying networks where the Nakagami-m fading channel is taken into account. In practice, the joint impact of residual transceiver hardware impairments (HIs) and channel estimation errors (CEEs) on the outage probability and intercept probability is taken into account. Considering HIs and CEEs, an optimal transmit antenna selection (OTAS) scheme is proposed to enhance the secure performance and then a collaborative eavesdropping scheme is proposed. Additionally, we present main channel capacity and intercept capacity of the multi-antenna DF relaying networks. More specifically, we derive exact closed-form expressions for the outage and intercept probabilities. To obtain useful insights into implications of parameters on the secure performance, the asymptotic behaviors for the outage probability are examined in the high signal-to-noise ratio (SNR) regime and the diversity orders are obtained and discussed. Simulation results confirm the analytical derivations and demonstrate that: 1) As the power distribution coefficient increases, OP decreases, while IP increases; 2) There exist error floors for the outage probability at high SNRs, which is determined by CEEs; 3) The secure performance can be improved by increasing the number of source antennas and artificial noise quantization coefficient, while as the number of eavesdropping increases, the security performance of the system is reduced; 4) There is a trade-off between the outage probability and intercept probability.

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