The interest in cognitive radio systems originates from the growing demand for radio communication resources. Cognitive technologies are widening the range of opportunities to access the radio spectrum, thanks to the analysis of spectrum usage and propagation characteristics within a specific time interval and the specific geographic area where the cognitive radio device is installed.

Cognitive technologies are developing and opening to a wide range of research opportunities.

One of the most interesting aspects of cognitive radio technologies is the unlicensed and unprotected use of so-called “white spaces” left by the systems that use the spectrum in a primary and licensed way. The use of cognitive radio technology is allowed provided that no harmful interference affects the primary service.

The most common cognitive technologies are based on channel sensing and geolocation database.
FUB aims at identifying advanced implementation and application modes of cognitive radio.

FUB aims at identifying advanced implementation and application modes of cognitive radio.

  • Channel sensing
  • Geolocation database

The joint application of geolocation database and sensing techniques represents an underexplored research area that can bring considerable benefits in terms of:

  • reduction of the interference risk;
  • detection of non-primary signals, such as professional microphones.