@INPROCEEDINGS {2017,
author={F. Nunes and J. Leitão},
doi={},
booktitle={IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Comm.},
title={Innovations-based Channel Estimation and symbol Detection of Multi-level OFDM Signals},
year={2004},
month={July},
volume={1},
pages={1-4} 
}