Free-Space Optical Communication Using Subearrier Modulation in Gamma-Gamma Atmospheric Turbulence

  title={Free-Space Optical Communication Using Subearrier Modulation in Gamma-Gamma Atmospheric Turbulence},
  author={Zabih Ghassemlooy and W. O. Popoola and Ernst Leitgeb},
  journal={2007 9th International Conference on Transparent Optical Networks},
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… CONTINUE READING

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