Coalition game theory in cognitive mobile radio networks

Abstract

In this work, the impact and performance of the Coalition Game Theory applied directly to the detection and decision stages of a Cognitive Radio (CR) system is evaluated. The performance of the Coalitional Game was analyzed in terms of the Probability of detection (P d ) and Probability of false alarm (P fa ) versus number of secondary users (SUs). In addition, the detection accuracy and simulation time versus SU were analyzed in a structured network adapted for WiFi and LTE technologies with cognitive parameters. The results were compared using simulation scenarios to obtain data using the theoretical Non-cooperative decision method and the theoretical Centralized decision method. The evaluated system outperformed the other methods in terms of P d , P fa detection accuracy and simulation time.