Physical Layer Intercept Probability in Wireless Sensor Networks over Fisher–Snedecor ? Fading Channels

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ID: 268353
2021
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Abstract
In this paper, we analyze the physical layer security (PLS) of an arbitrarily dimensioned wireless sensor network (WSN) in the presence of an unauthorized attacker. Various scheduling schemes have been exploited in order to enhance the secure transmission of reliable links impaired by Fisher–Snedecor F fading. The path loss among active nodes is also considered. The exact intercept probability expressions are derived recalling an optimal scheduling scheme (OS), a scheduling policy based on a specific cumulative distribution function (CS), and round-robin scheduling as a baseline. The asymptotic behavior of the intercept metric is also presented in a simpler form with acceptable accuracy. The secrecy diversity orders are defined and the security–reliability tradeoff of WSN is specified. Numerical results are provided to demonstrate the interplay of various main/wiretap channel conditions, the distances among nodes, the number of active sensors, and the average main-to-eavesdropper’s signal ratio in order to upgrade the quality of the WSN secrecy performance. Additionally, the impact of the outage probability on the intercept probability is defined for a variety of scenarios under which either the CS or OS scheme could be selected as suitable for PLS enhancement. The obtained results are verified by independent Monte Carlo simulations.
Reference Key
maričić2021electronicsphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Srđan Maričić;Nenad Milošević;Dejan Drajić;Dejan Milić;Jelena Anastasov;Maričić, Srđan;Milošević, Nenad;Drajić, Dejan;Milić, Dejan;Anastasov, Jelena;
Journal Electronics
Year 2021
DOI
10.3390/electronics10121368
URL
https://www.mdpi.com/2079-9292/10/12/1368
Keywords
reliability wireless sensor network physical layer security outage probability intercept probability fisher–snedecor f distribution path loss

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