Journals

jOURNAL nO. 004

Title: Effects of Eavesdropper on the Performance of Mixed η–μ and DGG Cooperative Relaying System

Journal Publisher: IEEE System Journal

Research key words: Double generalized gamma (DGG), physical layer security, radio frequency free-space optical (RF–FSO) network, secure outage probability

Authors: Noor Ahmad Sarker, ASM Badrudduza, Milton Kumar Kundu, Imran Shafique Ansari, Imtiaz Ahmed

Published Year: 2023

Published Link: https://ieeexplore.ieee.org/abstract/document/10145000

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Key Points About Paper:

Major limitations of single radio-frequency (RF) link or single free-space optical (FSO) link can be highly mitigated via cooperative RF-FSO links.
In this work, a dual-hop η–μ/Double Generalized Gamma (DGG) link was proposed as an RF-FSO channel. Compare to other FSO fading channel model, unified DGG can be analyzed in all turbulence conditions.
The proposed η–μ/DGG cooperative channel, assuming decode-and-forward (DF) based relaying scheme, was analyzed based on 3 eavesdropping scenarios.
In scenario-1, a single eavesdropper was assumed to attack on only first-hop RF (η–μ) channel. In scenario-2, a single eavesdropper was assumed to attack on only second-hop FSO (DGG) channel. In scenario-3, both eavesdroppers from previous two scenarios were assumed to attack simultaneously over the proposed wireless channel.

Different fading parameters of proposed channel were investigated via 3 performance matrics, namely probability of strictly positive secrecy capacity (PSPSC), secure outage probability (SOP), and Effective Secrecy Throughput (EST); considering all 3 wiretapping scenarios.
For analytical evaluation, MATHEMATICA software was used. For Monte-Carlo simulation, authors used MATLAB software.
A comperative analysis of 3 proposed wiretapping scenarios was performed in this work. Also, a simulation examination is performed for reversed (FSO-RF) scenarios.

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