@INPROCEEDINGS {15764,
author={P. Vieira and A. Martins and A. J. Rodrigues},
doi={0},
booktitle={Congresso do Comité Português da URSI},
title={Energy Savings in 3G Using Base Station Sleep Modes},
year={2014},
month={November},
volume={1},
pages={1-1} 
}