The performance of the satellite communication systems employing either polarization diversity or frequency-reuse schemes to improve the spectral efficiency is degraded due to the depolarization-induced interference originated by raindrops and ice particles present along the Earth-Satellite propagation path. Two models are able to account for both rain and ice contributions: one enables the prediction of the long-term first-order statistics (Cumulative Distribution Function, CDF) of cross-polarization discrimination (XPD), and the second enables the prediction of the relationship between XPD and co-polar attenuation (CPA). The second was developed considering exclusively data at V-band and so, it not only requires independent validation but also extension to other frequency-bands. The predictions provided by the first are usually converted on the corresponding XPD-CPA relationship using the long-term first-order statistics of rain attenuation, (incorrectly) considering that the equiprobability hypothesis applies. Using 8 years of measurements both models are tested, a new XPD-CPA relationship is proposed for the Ka-band and a novel approach to the conversion from the CDF of XPD to the corresponding XPD-CPA relationship is presented.
High-order evaluation and modelling of cross-polarization discrimination on earth-satellite propagation paths at Ka and V-bands
Riva, Carlo;
2017-01-01
Abstract
The performance of the satellite communication systems employing either polarization diversity or frequency-reuse schemes to improve the spectral efficiency is degraded due to the depolarization-induced interference originated by raindrops and ice particles present along the Earth-Satellite propagation path. Two models are able to account for both rain and ice contributions: one enables the prediction of the long-term first-order statistics (Cumulative Distribution Function, CDF) of cross-polarization discrimination (XPD), and the second enables the prediction of the relationship between XPD and co-polar attenuation (CPA). The second was developed considering exclusively data at V-band and so, it not only requires independent validation but also extension to other frequency-bands. The predictions provided by the first are usually converted on the corresponding XPD-CPA relationship using the long-term first-order statistics of rain attenuation, (incorrectly) considering that the equiprobability hypothesis applies. Using 8 years of measurements both models are tested, a new XPD-CPA relationship is proposed for the Ka-band and a novel approach to the conversion from the CDF of XPD to the corresponding XPD-CPA relationship is presented.File | Dimensione | Formato | |
---|---|---|---|
1570314434_Jan.pdf
Accesso riservato
Descrizione: articolo completo
:
Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione
291.15 kB
Formato
Adobe PDF
|
291.15 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.