Free-space optical communication using subcarrier modulation in gamma-gamma atmospheric turbulence

Z. Ghassemlooy*, W. O. Popoola, E. Leitgeb

*Corresponding author for this work

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

Abstract

Free-space optical communications (FSO) propagated over a clear atmosphere suffers from irradiance fluctuation caused by small but random atmospheric temperature fluctuations. This results in decreased signal-to-noise ratio and consequently impaired error performance. In this paper, the error performance of the FSO using a subcarrier intensity modulation (SIM) based on a binary phase shift keying scheme in clear but turbulent atmosphere is presented. To evaluate the system error performance in turbulence regimes from weak to strong, the probability density function of the received irradiance after traversing the atmosphere is modelled using the gamma-gamma distribution and the effect of turbulence induced irradiance fluctuation is mitigated using spatial diversity.

Original languageEnglish
Title of host publicationICTON 2007: Proceedings of the 9th International Conference on Transparent Optical Networks, Vol 3
EditorsM Marciniak
Place of PublicationNEW YORK
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages156-160
Number of pages5
ISBN (Print)*****************
Publication statusPublished - 2007
Event9th International Conference on Transparent Optical Networks (ICTON 2007) - Rome, Italy
Duration: 1 Jul 20075 Jul 2007

Conference

Conference9th International Conference on Transparent Optical Networks (ICTON 2007)
Country/TerritoryItaly
Period1/07/075/07/07

Keywords

  • PROBABILITY DENSITY-FUNCTION
  • PERFORMANCE ANALYSIS
  • CHANNELS
  • LINKS

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