Performance of generalized frequency division multiplexing over gamma gamma free space optical link


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Ahmed M. S., Güçlüoğlu T.

OPTICS COMMUNICATIONS, vol.466, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 466
  • Publication Date: 2020
  • Doi Number: 10.1016/j.optcom.2020.125683
  • Journal Name: OPTICS COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, DIALNET
  • Keywords: Free space optics, Generalized frequency division multiplexing, Orthogonal frequency division multiplexing, Gamma gamma distribution, Atmospheric turbulences, FSO LINKS, GFDM, OFDM, COMMUNICATION, RECEIVER, BER
  • Yıldız Technical University Affiliated: Yes

Abstract

Generalized frequency division multiplexing (GFDM) with the free space optical channel can be a desirable option for free space optical communication systems as it has numerous benefits such as high spectral efficiency, flexibility, low out of band radiation and low peak-to-average power ratio. In this paper, the closed form expressions of symbol error and outage probabilities with and without pointing errors are derived for GFDM over gamma-gamma channel model. The theoretical results are verified with the Monte-Carlo simulations. Moreover, the impact of turbulence levels and comparison with orthogonal frequency division multiplexing are also explored.