[1]
H. C. . Cherutoi, D. K. . Choge, and D. W. . Waswa, “Increasing the Capacity in NG-PON Using QPSK, 4-QAM, and 8-QAM Modulation Formats”, JOPR, Nov. 2025, doi: 10.47852/bonviewJOPR52025167.