Title :
Analysis and applications of short-distance site diversity techniques for 20/30 GHz communication links
Author :
Bosisio, A. ; Capsoni, C. ; Paraboni, A. ; Corazza, G.E. ; Vatalaro, F. ; Vassallo, E.
Author_Institution :
Dipartimento di Elettronica e Inf., Politecnico di Milano, Italy
Abstract :
This paper considers the application of short-distance site diversity to Earth-space communication links affected by rain attenuation at K/sub a/-band. For the range of distances of interest, 25 km or less, the attenuations in the diversity paths are statistically dependent. The presented approach adopts the EXCELL model for meteorological characterization. Both down- and up-link site diversity have been studied with two stations. Three different diversity strategies (signal selection, site switching and signal combining) have been analyzed in case of down-link diversity. For up-link diversity, we considered the site switching technique. We show that short-distance site diversity provides a significant advantage to meet availability requirements in data relay satellite (DRS) links.
Keywords :
diversity reception; satellite communication; satellite links; tropospheric electromagnetic wave propagation; 20 to 30 GHz; EXCELL model; Earth-space communication links; K/sub a/-band; data relay satellite links; down-link; meteorological characterization; rain attenuation; short-distance site diversity techniques; signal combining; signal selection; site switching; up-link; Attenuation; Communication channels; Communication switching; Diversity reception; Meteorology; Predictive models; Rain; Relays; Signal analysis; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE
Conference_Location :
Singapore
Print_ISBN :
0-7803-2509-5
DOI :
10.1109/GLOCOM.1995.502028
