A cognitive radio network spectrum balanced allocation algorithm combined spectrum sensing and priority

This article based on OFDMA cognitive radio networks and spectrum allocation issues, In the overlay spectrum sharing (Spectrum Underlay) way, Research the downstream of a single cellular network cognitive radio spectrum resources allocated. We proposed allocation algorithm by jointly considering the cognitive user priority and sub-set with availability the sub-carrier band equalizer, meanwhile based on the lowest transmission needs of cognitive users to achieve a fair distribution of the sub-carrier band between cognitive user. To make better use of spectrum resources.