Design and implementation of FFT/IFFT processors with word-length optimization for OOFDM-PON system
WANG Kai, WU Qi, LI Jiaqi, XUE Ziwei, ZHANG Junjie
Journal of Shanghai University(Natural Science Edition) . 2016, (4): 398 -407 .  DOI: 10.3969/j.issn.1007-2861.2014.05.018