Aperture averaging in strong oceanic turbulence

Gökçe M. C., Baykal Y.

OPTICS COMMUNICATIONS, cilt.413, ss.196-199, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 413
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.optcom.2017.12.059
  • Dergi Adı: OPTICS COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.196-199
  • Anahtar Kelimeler: Optical communications, Oceanic propagation, Aperture averaging, Irradiance flux variance, SPHERICAL WAVES, COMMUNICATION, SCINTILLATION, PERFORMANCE, PROPAGATION, INDEX, PLANE
  • TED Üniversitesi Adresli: Hayır

Özet

Receiver aperture averaging technique is employed in underwater wireless optical communication (UWOC) systems to mitigate the effects of oceanic turbulence, thus to improve the system performance. The irradiance flux variance is a measure of the intensity fluctuations on a lens of the receiver aperture. Using the modified Rytov theory which uses the small-scale and large-scale spatial filters, and our previously presented expression that shows the atmospheric structure constant in terms of oceanic turbulence parameters, we evaluate the irradiance flux variance and the aperture averaging factor of a spherical wave in strong oceanic turbulence. Irradiance flux variance variations are examined versus the oceanic turbulence parameters and the receiver aperture diameter are examined in strong oceanic turbulence. Also, the effect of the receiver aperture diameter on the aperture averaging factor is presented in strong oceanic turbulence. (C) 2017 Elsevier B.V. All rights reserved.