@INPROCEEDINGS {10976,
author={D. Neves and A.  Silva and C. Ribeiro and A. Gameiro},
doi={},
booktitle={IEEE Latin-American Conf. on Communications - LATINCOM},
title={An Iterative Pilot-Data Aided Estimator for OFDM-Based Relay-Assisted Systems},
year={2011},
month={November},
volume={1},
pages={1-5} 
}