DefinePK

Abstract

Spectrum decision selects the proper spectrum bands in order that a new cognitive radio (CR) user can transmit. This paper presents the development and results achieved in a CR technology research, specifically in the spectrum decision stage, where is selected the band(s) most appropriate for transmission, based on the information gathered during the sensing spectrum stage and the requirements of non-licensed users, so that a decision model was applied through multi-criteria selection techniques. Within this were made thirteen measurements at three places in Bogota for a total of thirteen days. With the results was designed a decision model that integrates the propagation losses in the GSM (global system for mobile communications) band in some places of Bogota, Colombia.