T. M. Alves and A. D. Cartaxo,  "Capacity of hybrid wired-wireless OFDM LR-PONs limited by cross-phase modulation", in Conf. Proc.: 2014 16th Int. Conf. on Transparent Optical Networks (ICTON),  Marek Jaworski, Marian Marciniak , Ed., Graz, IEEE, 2014