Achievable physical-layer security over composite fading channels

Osamah S. Badarneh*, Paschalis C. Sofotasios, Sami Muhaidat, Simon L. Cotton, Khaled M. Rabie, Naofal Aldhahir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
15 Downloads (Pure)

Abstract

We investigate the physical layer security limits of Wyner’s wiretap model over Fisher-Snedecor F composite fading channels. F fading conditions have been recently shown to provide an accurate characterization of multipath fading and shadowing effects in emerging wireless transmission scenarios such as body centric, cellular and vehicular communications. To this end, we utilize a redefined analytic expression for the Fisher-Snedecor F distribution in order to ensure unconstrained validity and reliability when used in the analysis of various performance metrics of interest. In this context, we assume that the main channel (i.e., between the source and the legitimate destination) and the eavesdropper’s channel (i.e., between the source and the illegitimate destination) undergo independent quasi-static Fisher-Snedecor F composite fading. Novel exact analytic expressions are then derived for the corresponding average secrecy capacity (ASC), secure outage probability (SOP) and probability of strictly positive secrecy capacity (SPSC) along with their insightful asymptotic representations. In addition, analytical expressions for the ASC, SOP and SPSC over mixed fading channels such as Nakagami-m/Nakagami-m, Nakagami-m/Fisher-Snedecor F and Fisher-Snedecor F/Nakagami-m are derived. The new formulations are validated through comparisons with Monte-Carlo simulations and analyzed to gain useful insights into the impact of the fading parameters on the achievable accuracy and the overall system performance.

Original languageEnglish
Pages (from-to)195772-195787
Number of pages16
JournalIEEE Access
Volume8
DOIs
Publication statusPublished - 26 Oct 2020

Bibliographical note

Funding Information:
This work was supported in part by the Khalifa University under Grant KU/RC1-C2PS-T2/8474000137 and Grant No. KU/FSU-8474000122.

Publisher Copyright:
© 2020 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • Average secrecy capacity
  • Fisher-Snedecor F distribution
  • Physical layer security
  • Secure outage probability

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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