@INPROCEEDINGS {13500,
author={J.  Rebola and A. Cartaxo},
doi={0},
booktitle={IEEE Photonics Conf. - IPC},
title={Performance Evaluation of Direct-Detection OFDM Optical Receivers with RF Down-Conversion},
year={2013},
month={September},
volume={1},
pages={1-1} 
}