Some limitations on optical communication reliability through Kolmogorov and non-Kolmogorov turbulence

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Abstract

In free-space optical communication links, atmospheric turbulence causes fluctuations in both the intensity and the phase of the received signal, affecting link performance. Influence of Kolmogorov and non-Kolmogorov turbulence statistics on laser communication links are analyzed for different propagation scenarios, and effects of different turbulence spectrum models on optical communication links are presented. Statistical estimates of the communication parameters such as the probability of fade (miss) exceeding a threshold dB level, the mean number of fades, and BER are derived and examples provided. The presented quantitative data suggest that the non-Kolmogorov turbulence effects on lasercom channels are more severe in many situations and need to be taken into account in wireless optical communication. Non-Kolmogorov turbulence is especially important for elevations above the boundary layer as well as for even low elevation paths over water.

Original languageEnglish
Pages (from-to)1229-1235
Number of pages7
JournalOptics Communications
Volume283
Issue number7
DOIs
StatePublished - 1 Apr 2010

Keywords

  • Fading statistics
  • Optical communication
  • Optical turbulence
  • Turbulence spectrum

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