Authors :
Ebinowen Tusin Dayo
Volume/Issue :
Volume 6 - 2021, Issue 7 - July
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/3ilsh3s
Abstract :
At the Ku band frequencies, the signal is
oftentimes influenced by numerous deteriorating factors
like rain attenuation, cloud attenuation, and
tropospheric scintillation. Among other propagation
impairment, rain attenuation is the most common and
critical, because of its effects on the transmitted signal.
These include loss of signal strength at the receiving
station, wastage of transmission power in a bid to
overcome the attenuation. The need to mitigating the
effect of rain attenuation of signals at this band by
gaining the diversity and improving the factor is of
paramount importance that is addressed by this paper.
The improvement factor and the diversity gain needed to
compensate for the attenuation were obtained from data
collected from three weather stations in the tropical
region, after which a rain attenuation model was
proposed. The results obtained from the several
simulations using different diversity gain in single site
attenuation shows that there has been a significant
decrease in root-mean-square and standard deviation as
a prediction error compared with existing standard
models. This model (site diversity prediction) was built
with respect to baseline orientation angle, frequency of
operation, site separation distance, and elevation angle,
and it performed better for elevation angle, and site
separation distance.
Keywords :
Ku band frequency, Signal, Attenuation, Mitigation, Diversity
At the Ku band frequencies, the signal is
oftentimes influenced by numerous deteriorating factors
like rain attenuation, cloud attenuation, and
tropospheric scintillation. Among other propagation
impairment, rain attenuation is the most common and
critical, because of its effects on the transmitted signal.
These include loss of signal strength at the receiving
station, wastage of transmission power in a bid to
overcome the attenuation. The need to mitigating the
effect of rain attenuation of signals at this band by
gaining the diversity and improving the factor is of
paramount importance that is addressed by this paper.
The improvement factor and the diversity gain needed to
compensate for the attenuation were obtained from data
collected from three weather stations in the tropical
region, after which a rain attenuation model was
proposed. The results obtained from the several
simulations using different diversity gain in single site
attenuation shows that there has been a significant
decrease in root-mean-square and standard deviation as
a prediction error compared with existing standard
models. This model (site diversity prediction) was built
with respect to baseline orientation angle, frequency of
operation, site separation distance, and elevation angle,
and it performed better for elevation angle, and site
separation distance.
Keywords :
Ku band frequency, Signal, Attenuation, Mitigation, Diversity
