Al Bayati, E. et al. 2023. Dual Polarization DQPSK ROF System with Duo Binary Precoding and Hybrid Amplification for Effective Hybrid SMF FSO Transmission Medium. ELEKTRIKA- Journal of Electrical Engineering. 22, 1 (Apr. 2023), 29–41. DOI:https://doi.org/10.11113/elektrika.v22n1.430.