Spectrum allocation of cognitive radio based on game theory

Abstract

With the development of wireless communications, spectrum resource is becoming more and more scarce. To solve the shortage of spectrum resources in the radio system and make better use of the free frequency bands of authorized users, spectrum allocation of multiple authorized users in cognitive radio based on game theory is studied in this paper. Graph theory coloring algorithm can quickly achieve fast Nash equilibrium, which can solve the problem of frequency band allocation of multiple authorized users. Experiments are simulated to validate the analysis.