Rain Attenuation of Satellite link in Ku-band at Bangkok

Abstract

Rain attenuation is a major factor to degrade the system performance in a frequency above 10 GHz. This paper presents a statistical analysis of the rainfall rate and the rain attenuation data on satellite to ground propagation path. By measuring 12.7-GHz beacon signal attenuation from JCSAT satellite and the rainfall rate continuously. Yearly cumulative distribution functions were then compared to predicted models. The Crane Global model for the rain zone H provides overestimated predicted values to the measured ones. For the rain zone G, the Crane Global model provides close values to ITU-R model; both are smaller than the measured ones.

Ka-band satellite beacon attenuation and rain rate measurements in Singapore - comparison with ITU-R models

“…year measured values. This is because the ITU-R model tends to underestimate the rain attenuation in the tropical region [5]- [6]. However, the dynamic range of the beacon receiver is around 45dB and the rain attenuation in heavy rain events tends to saturate at the value around 45dB.…”

“…One of the most popular models is the ITU-R model [ret]. However, the model tends to underestimate the rain attenuation in the equatorial region [5]- [6]. In this paper, a modified ITU-R model suitable for the Singapore climate is proposed to minimize the error.…”

A Decision Support Scheme to Maintain QoS in Weather Impacted Satellite Networks

“…However, methodologies that attempt to combine them in a cohesive manner are not widely available. Authors of [6] present a statistical analysis for rainfall rate (RR) and rain fade data on satellite to ground propagation path. A method for RA prediction is proposed in [7] for low rain intensities.…”

Quality of service improvements in weather impacted satellite communication networks

“…Authors of [19] present a statistical analysis of rain fade data on satellite to ground propagation path. Authors of [20] presented a method for rain attenuation prediction which yielded good results during low rain and low propagation angle.…”

“…Similarly, provisioning of the propagation of signal characteristics in weather impacted satellite networks for reliable satellite communications merits further investigations especially in developing computationally efficient prediction control methods. This need for computationally efficient models for accounting challenging propagation environments and predicting parameters for satellite networks have already been well documented [13,14,[19][20][21][22][23]28].…”