Performance of small‐scale multiple‐site diversity systems investigated through radar simulations

Abstract

[1] The number of satellite telecommunication systems that make use of frequencies higher than 10 GHz is constantly growing; at frequencies above 10 GHz, attenuation due to rain can be a limiting factor for system availability; the dual-site diversity technique has proved to be quite useful in counteracting rain attenuation. This technique can be extended by adopting a multiple-site configuration. In this paper the performance of small-scale multiple-site diversity systems is investigated through simulations, carried out by exploiting a large database of radar maps of precipitation. Results have shown significant improvements in terms of diversity advantage and site separation reduction with respect to the dual-site configuration. Moreover, if the stations carry data traffic and they are not working at their full capacity, it is possible to recover a significant amount of the traffic that otherwise would be lost.Citation: Capsoni, C., and M. D'Amico (2007), Performance of small-scale multiple-site diversity systems investigated through radar simulations, Radio Sci., 42, RS1001,

Weather radar data for site diversity predictions and evaluation of the impact of rain field advection

“…In this environment, strong signal fades can no longer be overcome making use of static power margins, but require the application of Fade Mitigation Techniques (FMTs) as a viable solution [2]. To this end, telecommunication systems based on site diversity can be envisaged [3][4][5][6][7][8][9][10][11][12][13][14][15]: in fact, the use of multiple receiving stations permits us to take advantage of the spatial variability of rain, so that a distance of the order of tens of kilometers between the stations significantly reduces the probability that both stations are undergoing an outage and, therefore, that the system is unavailable [16]. The design of a site diversity system (of FMTs in general), however, requires the evaluation of the advantages (e.g.…”