Simple Generation of Gamma, Gamma-Gamma, and K Distributions with Exponential Autocorrelation Function

Dima Bykhovsky

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

The simulation of a free-space optical (FSO) communication channel in the presence of strong turbulence typically requires the generation of channel states with a K or gamma-gamma distribution and a predefined autocorrelation function. In this paper, we propose a simple and effective simulator of the strong-turbulence FSO channel that addresses the influence of the temporal covariance effect. Specifically, the proposed simulator provides K and gamma-gamma distributed values with the exponential autocorrelation function and a prescribed correlation time. This simulator is based on the numerical solution of the first-order stochastic differential equation. The simulated channel states are generated by a simple discrete-time differential equation and the simulator performance is analyzed in the paper.

Original languageEnglish
Article number7399343
Pages (from-to)2106-2110
Number of pages5
JournalJournal of Lightwave Technology
Volume34
Issue number9
DOIs
StatePublished - 1 May 2016
Externally publishedYes

Keywords

  • Channel simulator
  • K distribution
  • free-space optical communication
  • gamma distribution
  • gamma-gamma distribution
  • negative exponential distribution
  • stochastic differential equation
  • turbulence

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Simple Generation of Gamma, Gamma-Gamma, and K Distributions with Exponential Autocorrelation Function'. Together they form a unique fingerprint.

Cite this