@INPROCEEDINGS {30652,
author={A. Ferreira and G. G Gaspar and P. Carvalho and R. Dinis and D.  Jayakody},
doi={},
booktitle={Vehicular Technology Conference: VTC-Spring},
title={A power efficient technique for double layer massive MIMO schemes},
year={2017},
month={September},
volume={},
pages={-} 
}
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