Adaptive power control for satellite to ground laser communication

Michael Gubergrits, Roman E. Goot, Uri Mahlab, Shlomi Arnon

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We develop an adaptive power control algorithm to facilitate satellite to ground laser communication through turbulence fading channels. Adaptive control is a powerful tool that improves energetic gain of the satellite laser. We use discrete laser transmitter intensity levels in our control algorithm. A novel recursive technique defines optimal laser transmitting intensity levels so that the laser-transmitted power is adapted according to instant changes of the signal-to-noise ratio caused by channel fading. The algorithm's performance is first investigated in a general form suitable for any channel fading statistics. Then it is specified for a typical lognormal fading channel. The results indicate an improvement of up to 10 dB in energetic gain.

Original languageEnglish
Pages (from-to)349-362
Number of pages14
JournalInternational Journal of Satellite Communications and Networking
Issue number4
StatePublished - 1 Jul 2007


  • Adaptive control
  • Free-space laser communication
  • Power efficiency
  • Satellite-ground link

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


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