Performance analysis of free space optics with attenuation consequence in tropical environment

Mustafa, Muyassarah Ilyana (2024) Performance analysis of free space optics with attenuation consequence in tropical environment. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

Optical fiber technologies have been feasible solutions for backhaul networks. However, in high-density urban areas or topologies surrounded by mountains, it is not cost-effective to deploy compared to Free Space Optics (FSO) technologies. FSO uses a Line of Sight (LOS) communication system which transmits data through atmospheric absorption where scattering is the main mechanisms of optical signal loss which cause power degradation. The main challenge of FSO systems is that light propagation is influenced by different weather conditions. This project aims to design and analyze single and multiple-beam FSO systems using different attenuation of rain, haze, and fog. Different rates of attenuation represent different weather conditions of rain, fog, and haze at a data rate of 10 Gbit/s and a distance range of 700-1000m. Optisystem software is used to simulate the system's performance. System performance was observed through the BER, eye diagrams, and Q factor obtained. The eye diagram for the multiple beam FSO system was opened big, clean, and clear compared to the single beam FSO system for all situations. For multiple beams, the Q factor was higher and the BER was lower, which indicates good data transmission and good signal quality compared to the single-beam FSO system.

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