In the article the methods of global and local analysis of spectrum are investigated for determination of presence of primary (licensed) user in когнитивных radio networks in channels with Rayleigh fading, shadowing and additive white noise. The generalized model of cognitive radio network was also built and the basic concepts of cognitive radio are certain.
cognitive radio, the spectrum analysis, white noise, Rayleigh fading, shadowing, receiver operating characteristics
"Doslidzhennia metodiv analizu spektru v kohnityvnykh radiomerezhakh" ,
Scientific Works of Kharkiv National Air Force University,