中文摘要：

为解决认知无线网络中授权用户和认知用户的频谱共享问题,通过研究认知用户对主用户的影响和认知用户的竞价行为,引入干扰价格以及切换代价,设计认知用户的效用函数,建立相应的频谱竞价拍卖模型,通过纳什均衡理论分析该模型的稳定性,提出一种基于竞价模型的动态频谱分配算法。理论分析和仿真验证了该算法保证了认知用户的业务带宽需求,不连续的频谱得到了有效使用,提高了频谱的使用效率。

英文摘要：

To deal with the present situation of the dynamic spectrum allocation,a dynamic spectrum allocation algorithm based on bidding model was proposed.Aiming at researching the bidding behavior of cognitive users and how cognitive users influence the primary use by introducing interference price and switching cost and designing utility function of cognitive users.According to auction theory,corresponding spectrum auction model was established and the stability of the model was analyzed through Nash equilibrium.Theoretical analysis and simulation results verify that the algorithm guarantees the bandwidth of cognitive users＇ business requirements,and discontinuous spectrums are effectively used,the use efficiency of spectrum was improved.