Performance of free space optic transmission under haze impact

Aivea Nur Putri, Binti Hassan (2017) Performance of free space optic transmission under haze impact. [Final Year Project Report] (Unpublished)

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Abstract

Free Space Optic (FSO) or ‘fibreless fiber optic’ is a technology that transports data wirelessly from one place to another via lasers technology due to their coherence nature. Infrared light is used to provide full-duplex capability for transmission of data as compared to traditional fiber optics and RF transmission to curb last mile bottleneck problem due to implicit advantages such as affordable, easy to install and high bandwidth for a license-free spectrum. This technology is a Line Of Sight (LOS) technology where the connection is established between transmitter and receiver at the air at long distance for 4km. However, this technology is vulnerable to adverse atmosphere conditions. This thesis is aim to investigate the attenuation effect over the point-to-point FSO communication linkage. The thesis carried out under the tropical rainforest climate and the sample is taken at Sarawak region. That provide by Malaysia Meteorological Department (MMD). Haze is a type of weather condition that can contribute to high atmospheric attenuation and capable to degrade the FSO link performance. This weather is usually contributed by smoke, road dust, and other particles emitted directly into the atmosphere. These particles often grow in size as humidity and density of haze increases, further impairing visibility. Two approaches have been used in this research. The first is an extensive studies in modeling haze attenuation to investigate the Sarawak weather pattern in order to determine how the attenuation be able to occur in FSO communication linkage. This atmospheric model for haze is constructed from scattering coefficient, atmospheric attenuation and geometric loss equation. Optisystem software versions were used as a second approach to simulate and observe the effects attenuation over the link system. The performance of this FSO system is investigate under different parameters wavelength, size of aperture for transmitter and receiver, beam divergence angle and receiver sensitivity.

Item Type:	Final Year Project Report
Additional Information:	Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2017.
Uncontrolled Keywords:	Free Space Optic (FSO), ‘fibreless fiber optic', license-free spectrum, free space optic, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, , research, Universiti Malaysia Sarawak.
Subjects:	T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Academic Faculties, Institutes and Centres > Faculty of Engineering Faculties, Institutes, Centres > Faculty of Engineering
Depositing User:	Gani
Date Deposited:	08 Jul 2019 06:55
Last Modified:	08 Feb 2023 09:21
URI:	http://ir.unimas.my/id/eprint/25670

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