We investigate bit error rate (BER) performance of majority-based joint transmit and receive antenna selection (JTRAS-maj) in non-orthogonal multiple access (NOMA) networks with practical impairments including channel estimation error (CEE), feedback delay (FD) and successive interference cancellation (SIC) error. The closed-form expression of the exact BER is derived for binary phase shift keying modulation in Nakagami-m fading channels. In the high signal-to-noise ratio region, asymptotic and error floor expressions are also obtained in the absence and presence of the practical impairments, respectively. The analytical results verified by simulations reveal that non-zero and zero diversity gains are achieved in these cases, respectively. Also, the BER performance of users with worse channel gains is significantly improved as the number of receive antennas increases or channel condition enhances. In addition, the system works well up to some values of CEE, FD and SIC error.

我们研究在非正交多路访问（NOMA）网络中基于多数的联合发射和接收天线选择（JTRAS-maj）的误码率（BER）性能，其中包括信道估计误差（CEE），反馈延迟（FD）在内的实际缺陷以及连续的干扰消除（SIC）错误。确切的BER的封闭形式的表达式推导为Nakagami-二进制相移键控调制米衰落的频道。在高信噪比区域中，在不存在和存在实际损伤的情况下，也分别获得了渐近线和错误底线表达式。通过仿真验证的分析结果表明，在这些情况下分别实现了非零和零分集增益。此外，随着接收天线数量的增加或信道条件的改善，具有较差信道增益的用户的BER性能也会得到显着改善。此外，该系统在某些CEE，FD和SIC误差值下都能正常工作。