@INPROCEEDINGS {4928,
author={N.S. Souto and J. C. Silva},
doi={},
booktitle={IEEE International Conf. on Signal Processing and Communication - ICSPC},
title={Iterative Decoding and Channel Estimation of MIMO-OFDM Transmissions with Hierarchical Constellations and Implicit Pilots},
year={2007},
month={November},
volume={-},
pages={---} 
}