@article{masaracchia2019pso,

title={A PSO-based approach for user-pairing schemes in noma systems: Theory and applications},

author={Masaracchia, Antonino and Da Costa, Daniel Benevides and Duong, Trung Q and Nguyen, Minh-Nghia and Nguyen, Minh T},

journal={IEEE Access},

volume={7},

pages={90550--90564},

year={2019},

publisher={IEEE}

}