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Dimensioning the mobile link for aeronautical communications between aircraft and the satellite is a critical issue due to the limited power available, in particular if an omnidirectional antenna is used on board the aircraft. Also there are large channel variations due to the different effects occurring on the L-band mobile link and over-dimensioning of the user terminal or satellite should be avoided...
The new generation multi-spot Ka band satellites increase dramatically the offer of capacity whose cost is consequently reduced and give promising perspectives for fix interactive broadband services and mobile services. However, if on one hand the market and deployment of fix interactive broadband services definitely benefit from Ka band, on the other hand concerning mobile services the drawback of...
The recent emergence of satellite and terrestrial integrated mobile systems raises new challenges for interference coordination between satellite and terrestrial users. The terrestrial component aims at improving the satellite coverage in highly populated areas where satellite communications often suffer from a high blocking factor caused by the buildings. The term “integrated system” refers to a...
In this paper, we investigate the benefits of uniform circular arrays (UCAs) as an alternative antenna deployment to uniform linear arrays (ULA), which are commonly applied for multiple-input multiple-output (MIMO) systems. We consider a MIMO satellite link with focus on the Line-of-Sight (LOS) signal component of the MIMO channel between two geostationary satellites and a mobile earth terminal equipped...
The number of Satellite Services have increased tremendously during the last years: although initially driven only the military applications, commercial automotive applications collected the mass market attention in the recent years. Nowadays, these satellite services are mainly used for voice, data, internet, and tracking applications. Vehicles are increasingly being equipped with on-board electronic...
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