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GLOBECOM
2008
IEEE

Evolutionary Game Framework for Behavior Dynamics in Cooperative Spectrum Sensing

8 years 8 months ago
Evolutionary Game Framework for Behavior Dynamics in Cooperative Spectrum Sensing
—Cooperative spectrum sensing has been shown to greatly improve the sensing performance in cognitive radio networks. However, if the cognitive users belong to different service providers, they tend to contribute less in sensing in order to achieve a higher throughput. In this paper, we propose an evolutionary game framework to study the interactions between selfish users in cooperative sensing. We derive the behavior dynamics and the stationary strategy of the secondary users, and further propose a distributed learning algorithm that helps the secondary users approach the Nash equilibrium with only local payoff observation. Simulation results show that the average throughput achieved in the cooperative sensing game with more than two secondary users is higher than that when the secondary users sense the primary user individually without cooperation.
Beibei Wang, K. J. Ray Liu, T. Charles Clancy
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Beibei Wang, K. J. Ray Liu, T. Charles Clancy
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