Monthly and Diurnal Variability of Rain Rate and Rain Attenuation during the Monsoon Period in Malaysia

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dc.contributor.authorUlaganathen, Kesavan
dc.contributor.authorRafiqul, Islam Md
dc.contributor.authorRahman, Tharek A.
dc.contributor.authorAssis, Mauro S.
dc.coverage.issue2cs
dc.coverage.volume23cs
dc.date.accessioned2014-12-09T13:40:12Z
dc.date.available2014-12-09T13:40:12Z
dc.date.issued2014-06cs
dc.description.abstractRain is the major source of attenuation for microwave propagation above 10 GHz. In tropical and equatorial regions where the rain intensity is higher, designing a terrestrial and earth-to-satellite microwave links is very critical and challenging at these frequencies. This paper presents the preliminary results of rain effects in a 23 GHz terrestrial point-to-point communication link 1.3km long. The experimental test bed had been set up at Skudai, Johor Bahru, Malaysia. In this area, a monsoon equatorial climate prevails and the rainfall rate can reach values well above 100mm/h with significant monthly and diurnal variability. Hence, it is necessary to implement a mitigation technique for maintaining an adequate radio link performance for the action of very heavy rain. Since we now know that the ULPC (Up Link Power Control) cannot guarantee the desired performance, a solution based on frequency band diversity is proposed in this paper. Here, a secondary radio link operating in a frequency not affected by rain (C band for instance) is placed parallel with the main link. Under no rain or light rain conditions, the secondary link carries without priority radio signals. When there is an outage of the main link due to rain, the secondary link assumes the priority traffic. The outcome of the research shows a solution for higher operating frequencies during rainy events.en
dc.formattextcs
dc.format.extent754-757cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2014, vol. 23, č. 2, s. 754-757. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/36475
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2014/14_02_0754_0757.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectRainfall rateen
dc.subjectrain distributionen
dc.subjectrain attenuationen
dc.subjectdiurnal variabilityen
dc.subjectmonthly variabilityen
dc.subjectpower controlen
dc.subjectfrequency diversityen
dc.subjectradio linken
dc.subjectsystem availabilityen
dc.titleMonthly and Diurnal Variability of Rain Rate and Rain Attenuation during the Monsoon Period in Malaysiaen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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