Evaluation of Propagation Losses Due to Rain Attenuated Signal on Terrestrial Radio Links over Jos, Plateau State Nigeria

Main Article Content

O. J. Igbekele
J. T. Zhimwang
E. P. Ogherohwo

Abstract

This paper presents the evaluation of propagation losses due to rain attenuated signal on   terrestrial radio link. Rain rate data were measured using Davis weather station for the months of July, August and October 2017 at (9.9565° N, 8.8583° E; 1258 meters) Jos Plateau state of Nigeria. The data were analyzed using Microsoft Excel application package. Results were calculated based ITU-Recommendation. The result for the month of July shows that rain   attenuated signals become more severe from rain rate of 90 mm/hr at 0.014% to 160 mm/hr at 0.002% with attenuation of 31.215dB and 105.951dB respectively. Also, the month of August shows that rain attenuated signals become more severe from rain rate of 70mm/hr at 0.017% to 200mm/hr at 0.002% with attenuation of 69.509dB and 108.324dB respectively. Furthermore, the month of October shows that rain attenuated signals become more severe from rain rate of 70mm/hr at 0.014% to 160 mm/hr at 0.004 with attenuation of 50.301dB and 135.336dB respectively. Therefore, results from this study revealed that rain attenuated signals on terrestrial radio links in Jos-Nigeria is more severe at higher rainfall rate (above 60 mm/hr) and lower exceeded frequency percentage of time (0.01% to 0.001%).

Keywords:
Terrestrial radio link, propagation, rain attenuation, rain rate.

Article Details

How to Cite
Igbekele, O. J., Zhimwang, J. T., & Ogherohwo, E. P. (2019). Evaluation of Propagation Losses Due to Rain Attenuated Signal on Terrestrial Radio Links over Jos, Plateau State Nigeria. Physical Science International Journal, 23(1), 1-8. https://doi.org/10.9734/psij/2019/v23i130140
Section
Original Research Article

References

Seybold JS. Introduction to radio frequency propagation. Published by John Wiley & Sons Inc; 2005.

Baldotra AK, Hudiara IS, Sharma SV. Rain attenuation measurements in amritsar over terrestrial microwave link at 19.4 & 28.75 GHz; 2004.

Ezeh GN, Chukwuneke NS, Ogujiofor NC, Diala UH. Effects of rain attenuation on satellite communication link. Advances in Science and Technology Research Journal. 2014;8 (22):1–11.

Mukesh CK, Sumit J, Lalit SG. Prediction of rain attenuation and impact of rain in wave propagation at microwave frequency for tropical region (Uttarakhand, India). International Journal of Microwave Science and Technology. 2014;6.
[Article ID 958498]

Zhimwang JT, Ogherohwo EP, Igbekele OJ. Estimation of the long-term propagation losses due to rain on microwave satellite links over Jos, Nigeria. FUPRE Journal of Scientific and Industrial Research. 2018; 2(2):14.

Aloa OA. Microwave interference due to rain scatter at Ku and K-bands in Akure, South West, Nigeria. Global Advanced Research Journal of Physical and Applied Sciences. 2013;2(3):047-068.