Analysis of Rain Fade Durations on Communication Links at Ka Band in Nigeria

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dc.contributor.authorWilloughby, Alexander
dc.date.accessioned2022-05-05T12:13:19Z
dc.date.available2022-05-05T12:13:19Z
dc.date.issued2020
dc.description.abstractDuration of rain fade events is a major parameter to be considered when designing a communication link. Fading is a phenomenon responsible for intermittent fluctuations of radio signals observed in the tropical region. The prevalence of rain in the tropics accounts for the frequency of fading observed in this region. This study investigates the number of fade events per fade duration interval exceeding attenuation thresholds ranging from 1 dB to 18 dB at 40 GHz. The range of fade durations is from 10 s to 5000 s. The International Telecommunication Union (ITU-RP) propagation model and data from the Tropospheric Data Acquisition Network (TRODAN) were used for the analysis. The eight TRODAN stations, under the Centre for Atmospheric research (CAR), an activity Centre of the National Space Research and Development Agency (NASRDA) in Nigeria, cover the major climatic regions in the sub-Saharan region, namely equatorial, humid tropical and tropical zones (Geo. 4:82 N to 9:58 N). The results show that fade duration decreases as attenuation increases across all the locations. The implication is that heavy rains, causing higher attenuation, occur for shorter time duration. Similarly, higher attenuation depends on raindrops size and rain intensity. Consequently, the frequency of fade events exceeding 1 dB threshold is higher than other thresholds with respect to the fade duration.en_US
dc.identifier.urihttp://dspace.run.edu.ng:8080/jspui/handle/123456789/2674
dc.language.isoenen_US
dc.publisherInternational Journal of Recent Technology and Engineering (IJRTE)en_US
dc.subjectFade durationsen_US
dc.subjectRain fadeen_US
dc.subjectRadio propagationen_US
dc.subjectRain attenuationen_US
dc.subjectTropical regionsen_US
dc.subjectSatellite communicationsen_US
dc.subjectCommunication linksen_US
dc.subjectSub-Saharan Climateen_US
dc.titleAnalysis of Rain Fade Durations on Communication Links at Ka Band in Nigeriaen_US
dc.typeArticleen_US
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