@article{ribeiro2019_1711623891001, author = "Ribeiro, F. and Ribeiro, F. and Guerreiro, J. and Guerreiro, J. and R. Dinis and Cercas, F. and D. Jayakody", title = "Multi-user detection for the downlink of NOMA systems with multi-antenna schemes and power-efficient amplifiers", journal = "Physical Communication", year = "2019", volume = "33", number = "", doi = "10.1016/j.phycom.2019.01.003", pages = "199-205", url = "https://www.sciencedirect.com/science/article/pii/S1874490718301034?via%3Dihub" }