On Secrecy Performance of Mixed Generalized Gamma and Málaga RF-FSO Variable Gain Relaying Channel. - Sheikh Habibul Islam; A. S. M. Badrudduza; S. M. Riazul Islam; Fardin Ibne Shahid; Imran Shafique Ansari; Milton Kumar Kundu; Subarto Kumar Ghosh; Md. Biplob Hossain; A. S. M. Sanwar Hosen; Gi Hwan Cho (IEEE Access, 2020)