A novel low implementation-cost spectrum sensing technique for cognitive radio systems

Abstract

One of the greatest current challenges in telecommunications is the excessive exploitation of the radio spectrum, and the migration of new services to higher frequencies is becoming a problem since this implies a higher cost for the development of electronic equipment and the effective range of these decreases. This makes it essential that new equipment  has the capacity for efficient and collaborative use and reuse of the radio spectrum. Spectral sensing is therefore of vital importance in new electronic devices, along with the possibility of local spectrum sensing, spectrum management, frequency reuse, distributed communication capabilities in the framework of cognitive radio systems, etc.  The present work proposes a variant for the cross-correlation estimator in a cyclostationary detector to be implemented in a spectral detector and its comparison with other classical estimators.