This paper analyzes the performance of maximum-ratio transmission (MRT)/maximum-ratio combining (MRC) scheme in a dual-hop non-orthogonal multiple access (NOMA) full-duplex (FD) relay networks in the presence of residual hardware impairments (RHIs). The effects of channel estimation errors (CEEs) and imperfect successive interference cancellation are also considered for a realistic performance analysis. In the network, the base station and multiple users utilize MRT and MRC, respectively, while a dedicated relay consisting of two antennas, one for receiving and the other for broadcasting, operates in amplify-and-forward mode. For performance criterion, exact outage probability (OP) expression is derived for Nakagami-m fading channels. Furthermore, a tight lower bound and asymptotic expressions are also derived to provide more insights into the obtained OP in terms of diversity order and array gain. The obtained numerical results demonstrate the importance of loop-interference cancellation process at FD relay in order for the investigated system to perform better than half-duplex-NOMA counterpart. Also, a performance trade-off between the MRT and MRC schemes is observed in the presence of CEEs among users. Furthermore, it is shown that RHIs have a significant effect on the performance of users with lower power coefficients, however it does not change the diversity order. RHIs and CEEs have the most and least deterioration effects on the system performance, respectively.

翻译：本文分析了在残余硬件损伤(RHI)的情况下,在双视非横向多重存取(NOMA)全复式(FD)转发网中,最大拉比传输(MRT)/最大拉比(MRC)组合(MRC)办法的性能,还考虑了频道估计错误(CEEE)和连续干扰取消不完善的影响,以进行现实的业绩分析。在网络中,基地站和多个用户分别利用MRT和MRC,由两个天线组成的专用中继器,一个接收天线和广播天线,以扩大和前向模式运作。对于性能标准而言,精确的超值(OP)表达方式是纳卡加美(Nakagami-Mm)退缩通道的。此外,还形成了更紧凑窄的约束性和不完善的表达方式,以在多样性顺序和阵列增益方面对获得的OP提供更深入的了解。获得的数字结果表明,FD中继器的循环互换取消程序对于被调查的系统比半双倍的NOMA对等天线的重要性。此外,MRT和MR的用户之间的性交易效果也表明,其业绩最差的系统对后者的影响是显著的。