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Average secrecy capacity in FSO System over F -Distribution Channel Considering the Eavesdropper's Location

  • Harbin Institute of Technology
  • Military Equipment Development Department

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

When the beam waist radius of the receiver is significantly larger than that of the receiver, the free-space optical link is vulnerable to some optical capture risks in the physical layer. In this paper, we propose a new method to analyze the average secrecy capacity performance of the FSO system under Fisher-Snedecor (F)-distribution turbulence combined with the unified pointing error. As a key feature, we evaluate security performance in the presence of an external eavesdropper that exists anywhere on the same receiving plane as the receiver. Based on this model, we derive the exact average secrecy capacity expression and verify it by accurate Monte Carlo simulation. By using the expression, we analyze in detail the influence of the electrical signal-to-noise ratio of the main channel, the influence of different waist radius of the beam in the receiver plane on the average secrecy capacity performance under different turbulence conditions.

Original languageEnglish
Title of host publicationEighth Symposium on Novel Photoelectronic Detection Technology and Applications
EditorsJunhong Su, Lianghui Chen, Junhao Chu, Shining Zhu, Qifeng Yu
PublisherSPIE
ISBN (Electronic)9781510653115
DOIs
StatePublished - 2022
Event8th Symposium on Novel Photoelectronic Detection Technology and Applications - Kunming, China
Duration: 7 Dec 20219 Dec 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12169
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference8th Symposium on Novel Photoelectronic Detection Technology and Applications
Country/TerritoryChina
CityKunming
Period7/12/219/12/21

Keywords

  • Average secrecy capacity
  • Free-space optical communication
  • Physical layer security
  • Pointing errors

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