On the Performance of Multi-Hop Free Space Optical Cooperative Systems

Behnam Ashrafzadeh, Amir Zaimbashi, Ehsan Soleirnani-Nasab, Murat Uysal

Research output: Contribution to journalConference articlepeer-review


In this paper, we investigate the performance analysis of multi-hop free space optical (FSO) systems over Double Generalized Gamma (DGG) turbulence fading with pointing error impairments assuming both heterodyne detection and intensity modulation with direct detection (IMlDD). We derive closed-form expressions for the outage probability in terms of the Fox-H function. We further analyze asymptotical signal-to-noise-ratio (SNR) behavior of the outage probability and obtain the achievable diversity orders. Monte-Carlo simulation results are provided to verify the accuracy of the derived expressions.

Original languageEnglish (US)
Article number8647949
JournalProceedings - IEEE Global Communications Conference, GLOBECOM
StatePublished - 2018
Event2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates
Duration: Dec 9 2018Dec 13 2018


  • double generalized gamma
  • Free space optical communications
  • multi-hop relaying
  • outage probability

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Hardware and Architecture
  • Signal Processing


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