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AUTHOR(S): Sayo A. Akinwumi, Nikos. E. Mastorakis, Obaloluwa A. Elatuyi, Rowland E. Worlu, Theophilus E. Arijaje, Karen E. Ajibade
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TITLE Effect of Aerosol Scattering Attenuation on Communication Links in Port Harcourt Airspace |
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ABSTRACT A novel technique called free space optics (FSO) enables data transmission via light propagation in free space. However free-space optical (FSO) communication is negatively impacted by atmospheric disturbances including dust and scintillations. The objectives of the work is to determine the monthly cumulative distribution of aerosol scattering attenuation for transmissions at 850 nm and 1550 nm wavelength and to calculate attenuation impact on signal strength in the study area airspace. In this work, meteorological data was collected for Port Harcourt, Nigeria, during a 10-year period (2011-2020) were statistically analyzed in order to assess the availability performance of FSO lines broadcasting at both 850 nm and 1550 nm. The visibility, temperature, relative humidity and sea level pressure were collected to determine the aerosol scattering attenuation on free space optical communication. The results show that in the month of June 850 nm starts at a higher attenuation value of 1.6 dB/m compared to 1550 nm, having an attenuation of 0.7 dB/m. From june to july there is a slight decrease of about 0.9 dB/m and 0.3 dB/m for 850 and 1550 wavelengths respectively in the year 2011. ATT (850) has a relatively stable period from July to December and again from February to April. In 2012. Both ATT (850) and ATT (1550) appear to show some seasonal variation, with higher attenuation in the colder months (November to March) and lower attenuation in the warmer months (April to October). During the study period, it was observed communication lines on the 850nm experienced higher values of attenuation. Deeper understanding of the connections between environmental parameters and signal attenuation was obtained through a further Minitab regression study. The ideal location for the installation of a free space optical communication link by communication engineers can also be determined using the study's findings. |
KEYWORDS Free space optical communication, Attenuation, Scintillation. Aerosol Scattering, Meteorological data, Atmospheric disturbances |
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Cite this paper Sayo A. Akinwumi, Nikos. E. Mastorakis, Obaloluwa A. Elatuyi, Rowland E. Worlu, Theophilus E. Arijaje, Karen E. Ajibade. (2026) Effect of Aerosol Scattering Attenuation on Communication Links in Port Harcourt Airspace. International Journal of Applied Physics, 11, 56-64 |
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