Performance Analysis of Decode-and-Forward Relaying in Gamma-Gamma Fading Channels
Manav R. Bhatnagar
TL;DR
This paper analyzes the performance of decode-and-forward relaying in free space optical links affected by Gamma-Gamma fading, deriving new statistical functions and evaluating the average bit error rate.
Contribution
It introduces new derivations of the CDF and PDF for mixed Gamma-Gamma and Gaussian variables, enabling performance analysis of DF relaying in FSO channels.
Findings
Derived the CDF and PDF for the mixed Gamma-Gamma and Gaussian variables.
Calculated the average bit error rate for DF relaying in Gamma-Gamma fading channels.
Provided analytical tools for performance evaluation of FSO communication systems.
Abstract
Decode-and-forward (DF) cooperative communication based on free space optical (FSO) links is studied in this letter. We analyze performance of the DF protocol in the FSO links following the Gamma-Gamma distribution. The cumulative distribution function (CDF) and probability density function (PDF) of a random variable containing mixture of the Gamma- Gamma and Gaussian random variables is derived. By using the derived CDF and PDF, average bit error rate of the DF relaying is obtained.
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