Marwa Chafii Jacques Palicot Rémi Gribonval A PAPR upper bound of generalized waveforms for multi-carrier modulation systems. 461-464 2014 ISCCSP https://doi.org/10.1109/ISCCSP.2014.6877913 conf/isccsp/2014 db/conf/isccsp/isccsp2014.html#ChafiiPG14