@ARTICLE {9771,
author={E. Castañeda and A.  Silva and R. Robles and A. Gameiro},
doi={10.1155/2014/865905},
journal={Scientific World Journal, The},
title={Low-Complexity User Selection for Rate Maximization in MIMO Broadcast Channels with Downlink Beamforming},
year={2014},
month={January},
volume={2014},
number={1},
pages={1-13},
ISSN={2356-6140}
}