基于Bertrand博弈论的动态频谱分配算法  

Dynamic Spectrum Allocation Algorithm Based on Bertrand Game

作　　者：李军芳[1] 韩建敏[1] 

机构地区：[1]国家无线电频谱管理研究所,陕西西安710061

出　　处：《无线电工程》2011年第8期44-46,共3页Radio Engineering

基　　金：国家科技重大专项项目(2009ZX03007-004)

摘　　要：研究了在多主用户参与的完全竞争模式下的频谱价格问题,建立基于博弈理论的经济模型,分析主用户的频谱利润和频谱价格与认知用户的频谱需求之间的关系。考虑了主用户数、频谱替代因子和学习速率对频谱价格、纳什均衡、收敛性及稳定性的影响。仿真结果表明,合理的频谱价格及传输参数,可以使主用户获得的利润最大化,合理的学习速率可以使主用户的频谱价格快速收敛,通过有偿频谱共享,充分调动了主用户的积极性,从而有效的缓解了认知用户频谱资源紧张的局面。In this paper, the spectrum price over complete compete mode with multi-users is discussed. It also constructs an economy model based on game theory and analyzes the relationship between the spectrum profit and spectrum price of primary user and the spectnun demand of cognitive users. The number of primary users, the factor of spectrum substitutability, and the effect exerted by the study speed upon spectrum price, Nash equilibrium, convergence, and stability, are taken into considerations. The simulation results show that proper spectrum price and transfer parameters can maximize the profit of primary users. Appropriate study speed can make the spectrum price of primary users converge quickly. Through sharing the spectrum with price, it can generate the enthusiasm of primary users, thus effectively alleviate the tension of spectrum resource of cognitive users.

关 键 词：认知无线电 频谱共享 博弈论 纳什均衡 

分 类 号：TN923[电子电信—通信与信息系统]