Time Jitter Influence on the Performance of Gamma-Gamma Turbulence FSO Links with Various Modulation Schemes

George D. Roumelas, Hector E. Nistazakis*, Wilfried Gappmair, Panagiotis J. Gripeos, Vassilis Christofilakis

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The research area of optical wireless communication links has attracted significant interest over the last years due to the significant advantages offered by this kind of technology. However, the performance of FSO communication systems depends strongly on the effects, which are related to the atmosphere along the propagation path such FSO links are using. More specifically, the weather conditions and atmospheric turbulence effects can deteriorate considerably the performance characteristics. In this work, we are studying the joint influence of atmospheric turbulence and time jitter effects on the average BER of an FSO link by presenting a new approach for various modulation schemes. Thus new closed-form mathematical expressions are derived for accurate estimation of the BER performance of the optical wireless communication systems. Finally, using the obtained expressions and typical parameter values for FSO links, the numerical results are presented and then verified through Monte Carlo simulations.

Original languageEnglish
Pages (from-to)721-729
Number of pages9
JournalJournal of Modern Optics
Volume67
Issue number8
DOIs
Publication statusPublished - May 2020

Keywords

  • atmospheric turbulence
  • average BER
  • gamma–gamma distribution
  • Optical wireless communications
  • terrestrial free-space optical links
  • time jitter

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fields of Expertise

  • Information, Communication & Computing

Treatment code (Nähere Zuordnung)

  • Theoretical

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