Spectrum segmentation for wideband sensing of radio signals

Spectrum sensing is a key factor for either the development of Cognitive Radio or the implementation of instruments able to automatically monitor the radio spectrum. Within the process of spectrum sensing, segmentation aims to detect the boundaries of the transmission channels in a wide frequency range. The paper proposes a new spectrum segmentation method characterized by low processing time. The developed histogram-based method is described in the paper. Several experimental tests on emulated and actual signals are presented to prove the effectiveness of the method in terms of success percentage, processing time.