Ku-band specific attenuation coefficients for high-throughput satellites in equatorial region

Ahmad, Yasser Asrul and Ismail, Ahmad Fadzil and Badron, Khairayu (2022) Ku-band specific attenuation coefficients for high-throughput satellites in equatorial region. TELKOMNIKA Telecommunication Computing Electronics and Control, 20 (4). pp. 722-730. ISSN 1693-6930 E-ISSN 2302-9293

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Abstract

Ku-band have a larger attenuation during heavy rain in the equatorial region. Despite that, Ku-band has been identified as a frequency band in high-throughput satellite systems (HTS) for broadband satellite communication. The available rain fade prediction models are still not able to accurately predict rain attenuation in the equatorial region. The models depend on the specific attenuation parameters produced based on the international telecommunication union radiocommunication sector (ITU-R) instead of the measured value. Direct measurement of specific attenuation is more accurate but difficult to obtain because the correlation of rainfall rate and satellite signal loss due to rain must be obtained simultaneously. This paper aims to derive new specific attenuation frequency-dependent coefficients for Ku-band using the semi-empirical method. The Malaysia East Asia Satellite 3 (MEASAT-3) satellite data was collected using a 13 m antenna located at Cyberjaya, Selangor while the rainfall data was collected by the nearby hydrological station. The specific attenuation was obtained from correlations of the direct measurement of rain attenuation and rainfall rate. The new frequency-dependent coefficients for Ku-band specific attenuation values are k = 4.6690 and α = 0.1941. The newly acquired specific attenuation coefficients have improved the rain attenuation model prediction for the equatorial region.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Equatorial region High-throughput satellite Ku-band Rain attenuation Specific attenuation
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 > Department of Electrical and Computer Engineering
Depositing User:	Dr Yasser Asrul Ahmad
Date Deposited:	09 Aug 2022 16:54
Last Modified:	09 Aug 2022 16:54
URI:	http://irep.iium.edu.my/id/eprint/99303

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