Today, TV content can be distributed via Internet as OTT (Over The Top) delivery, allowing to expand the traditional offer with on-demand services. As the QoS (Quality of Service) cannot be guaranteed on the Internet as on a private IP network, during the years specific network architectures have been designed and developed (CDN: Content Distribution Network) and adaptive streaming protocols (ABR: Adaptive Bit-Rate), in order to optimise the data stream according to the broadband connection and the kind o terminal associated to each user.

The integration of terrestrial and satellite telecommunication networks will allow the widespread distribution of OTT contents, offloading the CDN backbone during traffic peaks, for the benefit of the effective picture quality perceived by the users.

Created and patented by Rai-CRIT, SFN-Scope can analyze SFN DVB-T signal received in the service area, and identify the individual components of the signals emitted from transmitters in service to the area, with their levels and delays. SFN-Scope thus makes now possible to simplify the signal quality control operated by RaiWay teams, and get actual feedback for level/delay measurment that until now were only available in a “aggregate” form by ordinary instruments.

The characterisation of a typical LTE cellphone embedded antenna has been done, in order to enable the simulations of geographic coverage for a terrestrial television service towards mobile terminals.

The growing demand for transmission capacity for mobile access has led in recent years public administrations to consider new ways of spectrum management, which include sharing between different services and operators. At the invitation of the Italian Ministry of Economic Development we have participated and contributed to a field experiment aimed at assessing the problems of interference eventually suffered by PMSE services (wireless cameras for TV production) by LTE services in the 2.3-2.4 GHz band.