Analysis of Spectrum Sensing Techniques for Detection of DVBT Signals in Gaussian and Fading Channels

摘要

Spectrum sensing is an essential concept in cognitive radio. It exploits the inefficient utilizationof radio frequency spectrum without causing destructive interference to the licensed users. Inthis paper we considered spectrum sensing of Digital Video Broadcast Terrestrial (DVB-T)signal in different scenario. We compared various spectrum sensing algorithms that make use ofthe second order statistics; the energy detector was also included for comparison. The resultsshow that it is possible to obtain good detection performance by exploiting the correlationmethod.