@INPROCEEDINGS {11504,
author={S.  Teodoro and A.  Silva and J.G. Gil and A. Gameiro},
doi={},
booktitle={IEEE Wireless Personal and Mobile Communications  - WPMC},
title={Precoded multiple relay-assisted scheme for cellular systems},
year={2010},
month={October},
volume={1},
pages={1-5} 
}