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A joint design of spectrum sharing and admission control in cognitive radio networks

Spectrum sharing is one of the most crucial techniques in cognitive radio (CR) system. In order to improve the efficiency and fairness of radio spectrum utilization, a spectrum sharing scheme based on cooperative game with admission control is proposed in this paper. The quality of service (QoS) demand and deceiving deed of secondary users (SU) are considered in the proposed sharing strategy. Simulation results show that the joint design of spectrum sharing and admission control scheme proposed in this paper maximizes the total profit of secondary users and possesses a high fairness at the same time. With the help of admission control, it not only guarantees to meet the minimum rate demands from the secondary users, but also prevents secondary users from exaggerating their rate requirements.