The demand for radio spectrum by wireless systems is increasing, also due to the progressive penetration of electronic communications in all productive and social sectors, such as transport, industry, health and society in general. To meet this demand efficient strategies are needed for spetrum use, which can significantly benefit from the shared access.
The continuous development of advanced technologies, such as cognitive radio, allow solutions that would significantly ease the efficient use of radio frequencies based on spectrum sharing.
The development of strategies and methods for the shared access of spectrum is still a complex issue, which needs to be addressed both in terms of novel regulatory approaches, and in reference to detailed coexistence studies, between systems intending to operate on the same or in adjacent bands .
FUB has well-recognised skills on electromagnetic analysis and has developed over years a vast collection of software tools, needed to carry out propagation analyses and coexistence studies between different systems that concur to the use of spectrum. Studies aim at defining novel approaches and techniques for the use of radio spectrum, which would guarantee the coexistence between different systems with predefined quality of service.The flexibility of the software tools also allows elaborations for scenarios that often apply particularly to the Italian use cases and are characterised by specific complexities. An example is given by the use of spectrum for TV broadcasting, which presents unique elements in Italy compared to other countries.
FUB skills are also applied to update and / or develop new regulatory approaches, in order to facilitate the shared access to spectrum for the various systems.
This multidisciplinary approach is essential to fully understand the potential benefits and possible criticalities that may accompany spectrum sharing.