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In satellite communications, the demand for capacity increase is met by the use of higher frequency bands, which however are severely impaired by atmospheric phenomena (rain, cloud and gaseous attenuation, scintillation). In order to study propagation effects for future satellite communication frequencies both in temperate and tropical climates, JOANNEUM RESEARCH carries out two long-term propagation...
Satellite communication systems operating at high frequencies (Ka-band and above) are severely impaired by atmospheric phenomena, particularly in tropical and equatorial regions, where the climatic characteristics affect several propagation parameters, including rain, cloud and gaseous attenuation, fade duration, fade slope, sky noise emission and site diversity gain.
This paper aims to present a statistical analysis on inter-fade interval in equatorial heavy rain region based on one year of Ku-band propagation measurement campaign carried out in Universiti Teknologi Malaysia (UTM), Johor, Malaysia. We first present the rain attenuation statistic from both temperate and tropical region (equatorial) followed by analysis on inter-fade intervals for different thresholds...
Future satellite communication systems are moving towards high operational frequencies, typically in the Ka band (18 to 30 GHz) to deliver wider bandwidths and higher data rates in response to the increasing demand for broadband communication services and the congestion of Ku band (11 to 18 GHz). As well known, signal degradation due to rain can be a main limiting factor in this frequency band, especially...
This letter investigates rain attenuation in Kuala Lumpur, Malaysia, by exploiting local drop size distribution (DSD) measurements. Coefficients for the well-established power-law model relating rain rate and specific attenuation are derived for frequencies in the Ku-, Ka-, and Q/V-bands based on three years of disdrometer data. We analyze the diurnal variation of rainfall rate for four time intervals...
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