Rain induced attenuation studies for V-band satellite communication in tropical region

Abstract

a b s t r a c tSatellite communications operating at 10 GHz and above in the tropics suffer severe signal degradation due to rain. Attenuation due to rain at 38 GHz had been measured for a period of 20 months in Malaysia. Analyses carried out include seasonal variations, diurnal effects and the annual cumulative distributions. Obtained results were compared with several established prediction models including the ITU-R. The rain fade characteristics were also investigated in determining the levels of signal loss and fading. In addition, the studies highlight several potential fade mitigation techniques that can be embarked. These fundamental aprehensions are very critical for future earth space communication link design and can be exploited as preliminary groundwork plan for the researchers as well as engineers.

Atmospheric Effects on Free Space Earth-to-Satellite Optical Link in Tropical Climate

“…Ultimately, based on the total attenuation, link availability and link margin are predicted for Malaysia weather conditions by obtaining cumulative distribution of measured rain intensity and visibility range. As mentioned in [23], cumulative distribution is one of most important presentation format to estimate the link availability as well as to attain the desired link performance.…”

Propagation Measurements during Daytime for RazakSAT S-band Space to Earth Satellite Signal Transmission

“…The two basic components of a satellite communications system are the space segment and the ground segment. The space segment typically consists of the spacecraft and the launch mechanism while the ground segment on the other hand, conventionally comprises of the Earth station with a network control centre for the entire satellite system operation [2]. Free Space Path Loss (FSPL) or any loss determination is an important aspect to consider before the launching of any satellite.…”

Observational study on melting layer characteristics over Palau in Pacific Ocean

“…Satellite links operating at frequencies above 10 GHz are often attenuated by hydrometeors such as rain, hail, cloud and the melting layer (Ippolito, 1986;Allnutt, 1989;Crane, 1996;Bryant et al, 2001;Chakravarty and Maitra, 2010;Peters et al, 2010;Badron et al, 2011). The attenuation prediction is usually performed with different meteorological parameters like rain rate, drop size distribution and rain height etc.…”