Analysis of Rain-Induced Attenuation Observed and Estimated over Millimetre Waves Propagation Links in Sub-Tropical Region

DOI

10.2991/978-94-6463-644-4_5How to use a DOI?

Keywords

Ka and Ku band; Rain Fade; Rain Rate; prediction models; Earth-satellite links

Abstract

Rain attenuation forecasts are one of the major components during the design of a satellite communication link at higher frequency bands. The environmental degradation is a major challenge, and consideration in designing a safe earth-to-satellite microwave link for these frequency bands is of key importance. Rain significantly reduces the signals that travel across the Earth-to-satellite microwave connections at higher bandwidth, such as the Ku to V- bands. However, it is important to take account of precise rain attenuation before system execution for the satellite link design. This study presents report on the estimated and measured rain attenuation over four South African regions using an earth-satellite connection. The primary measured predictive rain attenuation parameter is the rain rate obtained from the South Africa Weather Station for a period of 10 years (2011–2021) over four provinces in South Africa. Consequently, information gathered in stations under consideration has been evaluated and processed to transform cumulative distribution rain rate into one-minute rain frequency. Testing the validity and performance using the Ku and Ka band downlinks indicates that the ITU-R model was not coherent with the measured results at 0.01 percent unavailability of time for rain rate and attenuation in Bloemfontein, Durban, and East London except Cape Town, where there is a slight deviation. The study will offer quantitative insights on rain fade by using local data, which are crucial for the development of 5G networks in subtropical locations and beyond.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Adewumi O. Ayo
AU  - Pius. A. Owolawi
AU  - Joseph S. Ojo
PY  - 2025
DA  - 2025/02/04
TI  - Analysis of Rain-Induced Attenuation Observed and Estimated over Millimetre Waves Propagation Links in Sub-Tropical Region
BT  - Proceedings of the 8th URSI-NG Annual Conference (URSI-NG 2024)
PB  - Atlantis Press
SP  - 39
EP  - 50
SN  - 2352-541X
UR  - https://doi.org/10.2991/978-94-6463-644-4_5
DO  - 10.2991/978-94-6463-644-4_5
ID  - Ayo2025
ER  -