@ARTICLE {28228,
author={F. Ribeiro and J. Guerreiro and R. Dinis and Cercas, F. Cercas and D.  Jayakody},
doi={10.1016/j.phycom.2019.01.003},
journal={Physical Communication},
title={Multi-user detection for the downlink of NOMA systems with multi-antenna schemes and power-efficient amplifiers },
year={2019},
month={April},
volume={33},
number={April 2019},
pages={199-205},
ISSN={1874-4907}
}