Journals

Key Points About Paper:

• Physical layer security (PLS) analysis of mixed radio-frequency (RF) and free-space optical (FSO) channels are infrequent in the current research field, especially when eavesdropper is placed near the FSO link.

• In this work, the secrecy performance of a decode-and-forward (DF) cooperative RF-FSO link is investigated while the second hop is affected by an unwanted receiver.

• (α–κ–μ)-Shadowed, a highly composite fading channel, is introduced in RF link where both destination and eavesdropper links experienced unified Málaga Turbulent model. 

• Various fading parameters of both channels related to pointing error, detection type, fading severity, natural turbulence, SNR, etc. are analyzed concerning secrecy outage probability (SOP), intercept probability (IP), and strictly positive secrecy capacity (SPSC). 

• However, investigation of mixed (α–κ–μ)-Shadowed-Málaga is the main novelty of this work which provides enormous special cases in the RF-FSO research field.