“Performances of OFDM/OQPSK Modulation for Optical High Speed Transmission in Long Haul Fiber Over 1600 Km”, GJRE, vol. 14, no. J2, pp. 9–14, Jan. 2014, Accessed: Jun. 06, 2026. [Online]. Available: https://testing.engineeringresearch.org/index.php/GJRE/article/view/1150