Premium
Prediction of the degradation of the carrier‐to‐noise plus interference ratio concerning a site diversity system suffering from differential rain attenuation
Author(s) -
Livieratos S. N.,
Kanellopoulos J. D.
Publication year - 2002
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2000rs002618
Subject(s) - interference (communication) , carrier to noise ratio , fade , attenuation , fading , environmental science , computer science , satellite , noise (video) , degradation (telecommunications) , nakagami distribution , meteorology , remote sensing , statistics , telecommunications , signal to noise ratio (imaging) , geology , mathematics , channel (broadcasting) , physics , engineering , aerospace engineering , artificial intelligence , optics , image (mathematics) , operating system
Rain‐induced attenuation is a factor of utmost importance in designing a satellite link since it can strongly deteriorate the availability and performance of an Earth‐space path. Availability and performance are key criteria for the reliable design process. In the present paper the statistics of carrier‐to‐noise plus interference ratio under rain fade conditions are examined, given that the interference is caused by an adjacent satellite operating at the same frequency, and taking also under consideration double site diversity protection as a countermeasure technique. The method presented herein is based on a model of convective rain cells and the lognormal assumption for the point rainfall statistics. Numerical results have been obtained for heavy rain climatic regions and very large availability times, to examine how effective site diversity can be, not only for lowering fade margins but for compensating severe interference effects. Moreover, the elaboration of the numerical results has revealed how the optimum design of the satellite link can be achieved by selecting proper values for some critical parameters of the system.