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Simulation of rain fade on arbitrary microwave link networks by the downscaling and interpolation of rain radar data

Paulson, Kevin S.; Zhang, Xaiobei

Authors

Kevin S. Paulson K.Paulson@hull.ac.uk

Xaiobei Zhang



Abstract

[1] To predict the Quality of Service at a node in heterogeneous networks of line‐of‐sight, terrestrial, microwave links requires knowledge of the spatial and temporal statistics of rain over scales of a few meters to tens or hundreds of kilometers, and over temporal periods as short as 1 s. Meteorological radar databases provide rain rate maps over areas with a spatial resolution as fine as a few hundred meters and a sampling period of 2 to 15 min. Such two‐dimensional, rain rate map time series would have wide application in the simulation of rain scatter and attenuation of arbitrary millimeter‐wave radio networks, if the sampling period were considerably shorter, i.e., of the order of 10 s or less, and the integration volumes smaller. This paper investigates a stochastic‐numerical method to interpolate and downscale rain rate field time series to shorter sampling periods and smaller spatial integration areas, while conserving the measured and expected statistics. A series of radar derived rain maps, with a 10 min sample period, are interpolated to 10 s. The statistics of the interpolated‐downscaled data are compared to fine‐scale rain data, i.e., 10 s rain gauge data and radar data with a 300‐m resolution. The interpolated rain map time series is used to predict the fade duration statistics of a microwave link, and these are compared to a published and ITU‐R model.

Journal Article Type Article
Publication Date 2009-04
Journal European Conference on Antennas and Propagation, EuCAP 2009, Proceedings
Print ISSN 0048-6604
Publisher American Geophysical Union
Peer Reviewed Peer Reviewed
Volume 44
Issue 2
Article Number ARTN RS2013
APA6 Citation Paulson, K. S., & Zhang, X. (2009). Simulation of rain fade on arbitrary microwave link networks by the downscaling and interpolation of rain radar data. Radio science, 44(2), doi:10.1029/2008RS003935
DOI https://doi.org/10.1029/2008RS003935
Keywords Rain fade; Networks; Rain model
Publisher URL https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2008RS003935
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