Effect of Misalignment Error on Secrecy Outage Capacity of FSO Communication Links

Ruben Boluda-Ruiz, Khalid Qaraqe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Despite the high directivity of optical beams, free-space optical (FSO) communications may be compromised by the presence of an external observer, particularly when the beam footprint at the receiver side is greatly wider than the receiver size. In this paper, a new framework is developed for the analysis of the secrecy outage probability (SOP) and the probability of strictly positive secrecy capacity (SPSC) in FSO systems over gamma-gamma (GG) fading channels with nonzero boresight pointing errors. As a key feature, we include the eavesdropper's location in the pointing error model corresponding to the wiretap channel model. In this way, new approximate and asymptotic solutions for both the SOP and the probability of SPSC are obtained in closed-form, which are validated by Monte Carlo simulations. Using the developed expressions, we can study some effects such as the impact of the eavesdropper's location and the beam width on the secrecy outage performance.

Original languageEnglish
Title of host publication2019 IEEE Wireless Communications and Networking Conference, WCNC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538676462
DOIs
Publication statusPublished - Apr 2019
Event2019 IEEE Wireless Communications and Networking Conference, WCNC 2019 - Marrakesh, Morocco
Duration: 15 Apr 201919 Apr 2019

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2019-April
ISSN (Print)1525-3511

Conference

Conference2019 IEEE Wireless Communications and Networking Conference, WCNC 2019
CountryMorocco
CityMarrakesh
Period15/4/1919/4/19

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Keywords

  • Free-space optical (FSO)
  • gamma-gamma fading channels
  • pointing errors
  • secrecy outage probability (SOP)
  • secrecy performance

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Boluda-Ruiz, R., & Qaraqe, K. (2019). Effect of Misalignment Error on Secrecy Outage Capacity of FSO Communication Links. In 2019 IEEE Wireless Communications and Networking Conference, WCNC 2019 [8885999] (IEEE Wireless Communications and Networking Conference, WCNC; Vol. 2019-April). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2019.8885999