Full-duplex (FD) non-orthogonal multiple access (NOMA) communications is a promising technology to enhance spectral efficiency in future wireless access network. However, self-interference cancellation in FD is still a major challenge and thus concept of virtual full-duplex (VFD) relaying has evolved recently. In this letter, we investigate the impact of imperfect successive interference cancellation and residual inter-relay interference on a decode-and-forward relaying based VFD-NOMA. Framework for outage probability (OP), asymptotic OP, and ergodic rate expressions is developed for the considered system model over generalized Nakagami-m fading channels. Accuracy of the derived closed-form expressions is verified through rigorous Monte-Carlo simulations.

中文翻译：

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VFD-NOMA在不完善的SIC和广义Nakagami-m衰落信道上的残留中继间干扰下

全双工（FD）非正交多址（NOMA）通信是一种有前途的技术，可以提高未来无线接入网络的频谱效率。但是，FD中的自干扰消除仍然是主要挑战，因此虚拟全双工（VFD）中继的概念最近得到了发展。在这封信中，我们研究了不完善的连续干扰消除和残余中继间干扰对基于解码转发中继的VFD-NOMA的影响。针对广义Nakagami-m衰落信道上考虑的系统模型，开发了中断概率（OP），渐近OP和遍历速率表达式的框架。通过严格的蒙特卡洛模拟验证了导出的闭合形式表达式的准确性。