Site versus orbital diversity: performance comparison based on propagation characteristics at the Ku band and above

Site and orbital diversity are effective techniques to mitigate rain fades for high availability satellite communication systems located in heavy rain climatic regions operating at Ku band frequencies and above. Their performance is mainly affected by geometrical separation parameters, i.e., the sep...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2004-01, Vol.3, p.26-29
Main Authors: Panagopoulos, A.D, Arapoglou, P.-D.M, Cottis, P.G
Format: Article
Language:English
Subjects:
Antennas
Attenuation
Costs
Diversity methods
Equivalence
Frequency
Gain
Mathematical models
Orbitals
Predictive models
Rain
Rain fading
Satellite broadcasting
Satellite communication
Satellite ground stations
Separation
Testing
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Summary:Site and orbital diversity are effective techniques to mitigate rain fades for high availability satellite communication systems located in heavy rain climatic regions operating at Ku band frequencies and above. Their performance is mainly affected by geometrical separation parameters, i.e., the separation distance between Earth stations and the angular separation between satellites, respectively. A simple model, compatible with the suggestions of ITU-R, is presented for the technical choice between the two diversity techniques yielding the same joint probability of exceeding rain induced attenuation or, equivalently, the same diversity gain. The proposed prediction model is tested against simulated data from Italy, with encouraging results.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2004.827898