@ARTICLE {30002,
author={J.  Carvalho and D. B. da Costa and F. Lima and R. Oliveira and U.  Dias},
doi={10.1109/LWC.2020.2992049},
journal={IEEE Wireless Communications Letters},
title={Non-Orthogonal Multiple Access in Two-Hop Wireless Powered Communication Networks},
year={2020},
month={May},
volume={1},
number={1},
pages={1-1},
ISSN={2162-2337}
}