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 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 466
  • Publication Date: 2020
  • Doi Number: 10.1016/j.optcom.2020.125683
  • Title of Journal : OPTICS COMMUNICATIONS
  • Keywords: Free space optics, Generalized frequency division multiplexing, Orthogonal frequency division multiplexing, Gamma gamma distribution, Atmospheric turbulences, FSO LINKS, GFDM, OFDM, COMMUNICATION, RECEIVER, BER

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.