基于价格的Cournot频谱动态分配算法研究

Price-based Cournot Spectrum Dynamic Allocation Algorithm

针对无线通信网络中存在频谱资源紧张的问题,提出了一种基于价格的Cournot频谱动态分配算法。该算法设计的效用调节因子刺激了主用户的积极性,抑制了次用户的贪婪性,通过建立Cournot模型,实现了主用户利益最大化,同时采用迭代算法实现了频谱的最佳分配。仿真实验表明:该算法能够合理、有效地将空闲频谱分配给次用户,并且在主用户利益和频谱分配率上均优于已有的频谱分配模型。

Aiming at the problem of spectrum resource shortage in wireless communication networks, a price-based Cournot spectrum dynamic allocation algorithm is proposed. The utility adjustment factor designed in accordance with the algorithm stimulates the enthusiasm of the primary user while suppresses the greediness of the secondary user. And by establishing the Cournot model, the main-user benefits are maximized. Meanwhile, an iterative algorithm is used to achieve optimal spectrum allocation. The simulation results indicate that the proposed algorithm could properly and effectively allocate the idle spectrum to the secondary users, and is superior to the existing spectrum allocation model in terms of primary user interest and spectrum allocation rate.