A Three-Level Game for Resource Allocation in Cognitive Radio Networks

Cognitive radio has become a promising technology to enhance the resource efficiency. However, how the pricing is set for primary users and how the resource is allocated for secondary users needs to be considered. In this paper, each primary user sets one price for its unused spectrum and each secondary user selects one spectrum to use. A three-level game including evolutionary game for secondary users's spectrum-selection, noncooperative game for primary's price control and stakelberg game between one primary user and many secondary users is considered to analyze one networks including multiple primary users and many secondary users. Also the simulation results are presented to analyze the performance of this proposed game.