Time diversity gain analysis for earth to satellite link based on measured rain rate

Alam, Md Moktarul and Islam, Md. Rafiqul and Badron, Khairayu and Abdul Rahman, Farah Diyana and Lwas, Ali Kadhim and Dao, Hassan (2018) Time diversity gain analysis for earth to satellite link based on measured rain rate. In: 7th International Conference on Computer and Communication Engineering (ICCCE) 2018, 19th-20th September 2018, Kuala Lumpur.

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Abstract

Earth–to-satellite links are highly affected by propagation impairments especially by rain that operate at frequencies higher than 10 GHz. Therefore, the satellite communication system performance suffers from severe degradation at high frequencies in tropical and equatorial climate. Time diversity is one of the workable technique with suitable time delay between successive transmissions which is proposed by many researchers to mitigate rain fade. However, time diversity analysis requires measured rain attenuation data. For future high frequency link design those data are not available at most of the places. This paper proposes a method to utilize 1-minute rain rate to analyse time diversity gain at any desirable frequency. In proposed method, it is assumed that rain rate with delay can represent rain attenuation with delay for same period of time at same location. This assumption is valid as long as the attenuation causes due to rain. One year measured rain rate in Malaysia is used to predict rain attenuation gain. The measured gain at 12.225 GHz signal is compared with that predicted by ITU-R based on rain rate measurement and is found good agreement. Hence it is recommended that the time diversity gain can be predicted using measured rain rate for any desired frequencies.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	3802/69076
Uncontrolled Keywords:	Rain rate, rain attenuation, time diversity gain, earthto-satellite link.
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 Kulliyyah of Engineering
Depositing User:	Dr. Md. Rafiqul Islam
Date Deposited:	14 Jan 2019 15:06
Last Modified:	14 Jan 2019 15:06
URI:	http://irep.iium.edu.my/id/eprint/69076

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