Indian Journal of Science and Technology
DOI: 10.17485/ijst/2016/v9i47/106796
Year: 2016, Volume: 9, Issue: 47, Pages: 1-4
Original Article
Kulvir Kaur1 , Rajan Miglani1 * and Jagjit Singh Malhotra2
1 Department of Electronics and Communication systems, Lovely Professional University, Phagwara - 144411 Punjab, India; [email protected], [email protected] 2 Department of ECE, DAVIET, Jalandhar – 144008, Punjab, India; [email protected]
*Author for correspondence
Rajan Miglani
Department of Electronics and Communication systems, Lovely Professional University, Phagwara - 144411 Punjab, India; [email protected]
Background: In Free space optical communication medium, the received signal envelope is affected by various impairments. The most dominating effect is turbulence induced fading. To model the turbulence there are fading channel models. Findings: In this paper the Gamma-gamma fading model is reviewed which gives impressive results under all types of turbulence conditions. The Gamma-gamma channel model statistics and its performance with spatial diversity techniques under correlation are reviewed. It has been shown that the Gamma-gamma channel model is able to perform better under correlation than other fading channel models. Improvements: The performance analysis of Gamma-gamma channel under pointing errors and its working with recent techniques in which FSO systems works with RF systems (Hybrid RF/FSO system) are also included in this paper.
Keywords: Gamma-Gamma Channel Model, FSO (Free Space Optics), RF (Radio Frequency)
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