TY - JOUR
T1 - On the Intercept Probability and Secure Outage Analysis of Mixed (α-κ-μ)-Shadowed and Málaga Turbulent Models
AU - Sarker, Noor Ahmad
AU - Badrudduza, A. S.M.
AU - Islam, S. M.Riazul
AU - Islam, Sheikh Habibul
AU - Kundu, Milton Kumar
AU - Ansari, Imran Shafique
AU - Kwak, Kyung Sup
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2021/10/5
Y1 - 2021/10/5
N2 - This work deals with the secrecy performance analysis of a dual-hop RF-FSO DF relaying network composed of a source, a relay, a destination, and an eavesdropper. We assume the eavesdropper is located close to the destination and overhears the relay's transmitted optical signal. The RF and FSO links undergo (α-κ-μ)-shadowed fading and unified Málaga turbulence with pointing error. The secrecy performance of the mixed system is studied by deriving closed-form analytical expressions of secure outage probability (SOP), strictly positive secrecy capacity (SPSC), and intercept probability (IP). Besides, we also derive the asymptotic SOP, SPSC, and IP upon utilizing the unfolding of Meijer's G function where the electrical SNR of the FSO link tends to infinity. Finally, the Monte-Carlo simulation is performed to corroborate the analytical expressions. Our results illustrate that fading, shadowing, detection techniques (i.e. heterodyne detection (HD) and intensity modulation and direct detection (IM/DD)), atmospheric turbulence, and pointing error significantly affect the secrecy performance. In addition, better performance is obtained exploiting the HD technique at the destination relative to IM/DD technique.
AB - This work deals with the secrecy performance analysis of a dual-hop RF-FSO DF relaying network composed of a source, a relay, a destination, and an eavesdropper. We assume the eavesdropper is located close to the destination and overhears the relay's transmitted optical signal. The RF and FSO links undergo (α-κ-μ)-shadowed fading and unified Málaga turbulence with pointing error. The secrecy performance of the mixed system is studied by deriving closed-form analytical expressions of secure outage probability (SOP), strictly positive secrecy capacity (SPSC), and intercept probability (IP). Besides, we also derive the asymptotic SOP, SPSC, and IP upon utilizing the unfolding of Meijer's G function where the electrical SNR of the FSO link tends to infinity. Finally, the Monte-Carlo simulation is performed to corroborate the analytical expressions. Our results illustrate that fading, shadowing, detection techniques (i.e. heterodyne detection (HD) and intensity modulation and direct detection (IM/DD)), atmospheric turbulence, and pointing error significantly affect the secrecy performance. In addition, better performance is obtained exploiting the HD technique at the destination relative to IM/DD technique.
KW - Intercept probability
KW - Málaga turbulence
KW - physical layer security
KW - secure outage probability
UR - http://www.scopus.com/inward/record.url?scp=85115194914&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2021.3113010
DO - 10.1109/ACCESS.2021.3113010
M3 - Article
AN - SCOPUS:85115194914
VL - 9
SP - 133849
EP - 133860
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
ER -
