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Considering the imminent migration of services to the Ka- and Q-bands, a payload dedicated to propagation measurements in these bands has become available from the Alphasat satellite under the coordination of the European Space Agency. This has strongly motivated the formation of many measurement campaigns across Europe in an effort to enhance the scientific databases with new, more reliable propagation...
The upcoming migration of satellite services to higher bands, namely the Ka- and Q-bands offers many advantages in terms of bandwidth, data rates and system capacity. However, it poses challenges as propagation effects introduced by the various atmospheric phenomena are particularly pronounced in these bands and can become a serious constraint in terms of system reliability and performance. This paper...
The ongoing migration of satellite communication services to higher bands, namely the Ka- and Q-bands offer numerous advantages; however, signal propagation at these bands can be severely impaired by the various atmospheric phenomena. To assist in the validation and development of new accurate propagation models in these bands, two propagation site diversity experimental campaign have been initiated...
The reliable design of modern satellite communication systems operating above 10GHz requires the accurate evaluation of the channel modeling. Rain attenuation is the dominant fading mechanism for satellite links at Ku, Ka and Q/V band. Channel modeling is also important for the optimum design of the Fade Mitigation Techniques (FMTs). In this paper we present annual, seasonal, and diurnal simulated,...
The ever growing demand for higher data rates in satellite based services along with the congestion of the lower part of the frequency spectrum has led to the migration of new services to higher bands, such as the Ka-, Q/V bands. However, propagation in these bands is more prone to the atmospheric impairments; thus, the effects of the various atmospheric phenomena need to be accurately modeled and...
Knowledge of the extent and occurrence of periods when high, and low, attenuation is most likely to occur along slant path links during a typical day is going to be important when planning the design, and use of, future slant path communication systems. This paper presents a statistical analysis of one years measured slant path propagation characteristics at 20 and 40 GHz in southern England; there...
The main propagation effect on interference between adjacent earth-space paths is differential rain attenuation. A recently suggested model for the prediction of rain differential attenuation statistics is properly modified to include also the double polarized systems. The unified method for single/double polarized earth-space paths is based on a model convective raincell structure of the rainfall...
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