Abstract
Over recent years, cognitive radio technology has been paid enormous attention as this innovatory communication archetype can utilize existing wireless spectrum resources more competently. Spectrum sensing is considered to be primary and most essential task for cognitive radio network operators. It has been acknowledged that cooperative spectrum sensing improves the overall sensing performance of the network. But selfish users be likely to act greedily to access the channel without involving in spectrum sensing. In this paper, we considered multiuser de-centralized cooperative spectrum sensing scenario and game theory is used to analyze the cognitive interaction process. A comprehensive expression is derived for throughput and it is, then, maximized through strategic interaction between cognitive users. Simulation result shows that taking part in sensing is not always good in terms of throughput. This work also evaluates network conditions to determine when to contribute in sensing to maximize throughput.
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