title: Moment-based estimation for the shape parameters of the Gamma-Gamma atmospheric turbulence model.
abstract: We study the parameter estimation problem for the Gamma-Gamma turbulence model for free-space optical communication. An estimation scheme for the shape parameters of the Gamma-Gamma distribution is proposed based on the concept of fractional moments and convex optimization. To improve the estimation performance, we further propose a modified scheme which exploits the relationship between the Gamma-Gamma shape parameters in free-space optical communication. Simulation results reveal that the modified estimation scheme can achieve satisfactory performance for a wide range of turbulence conditions.
authors.affiliation: School of Engineering, The University of British Columbia Okanagan, 3333 University Way, Kelowna, BC V1V 1V7, Canada.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.forename: Julian
authors.initials: J
authors.lastname: Cheng