Assessment of monthly rain fade in the equatorial region at C & KU-band using measat-3 satellite links

Ahmad, Yasser Asrul and Suhaimi, Nur Hanis Sabrina and Ismail, Ahmad Fadzil and Badron, Khairayu (2021) Assessment of monthly rain fade in the equatorial region at C & KU-band using measat-3 satellite links. In: 11th International Conference on Robotics, Vision, Signal Processing and Power Applications, RoViSP 2021, 5 - 6 April 2021, Virtual.

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Abstract

C & Ku-band satellite communication links are the most commonly used for equatorial satellite communication links. Severe rainfall rate in equatorial regions can cause a large rain attenuation in real compared to the prediction. ITU-R P. 618 standards are commonly used to predict satellite rain fade in designing satellite communication network. However, the prediction of ITU-R is still found to be inaccurate hence hinder a reliable operational satellite communication link in equatorial region. This paper aims to provide an accurate insight by assessment of the monthly C & Ku-band rain fade performance by collecting data from commercial earth stations using C band and Ku-band antenna with 11 m and 13 m diameter respectively. The antennas measure the C & Ku-band beacon signal from MEASAT-3 under equatorial rain conditions. The data is collected for one year in 2015. The monthly cumulative distribution function is developed based on the 1-year data. RMSE analysis is made by comparing the monthly measured data of C-band and Ku-band to the ITU-R predictions developed based on ITU-R’s P.618, P.837, P.838 and P.839 standards. The findings show that Ku-band produces an average of 25 RMSE value while the C-band rain attenuation produces an average of 2 RMSE value. Therefore, the ITU-R model still under predicts the rain attenuation in the equatorial region and this call for revisit of the fundamental quantity in determining the rain fade for rain attenuation to be re-evaluated.

Item Type:	Conference or Workshop Item (Other)
Uncontrolled Keywords:	Satellite communication link, Rain attenuation, C- band, Ku-Band, Equatorial region.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr Yasser Asrul Ahmad
Date Deposited:	09 Mar 2022 08:55
Last Modified:	09 Mar 2022 08:56
URI:	http://irep.iium.edu.my/id/eprint/97105

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