Xinji Tian, Qianqian Li, Xingwang Li, Hui Zhang, Khaled Rabie, Charles Casimiro Cavalcante, Vol. 13, No. 11, November 30, 2019
10.3837/tiis.2019.11.006

• Non-orthogonal multiple access
• residual hardware impairments
• two-way relay
• channel estimation errors