华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (5): 22-26.doi: 10.3969/j.issn.1000-565X.2010.05.005

• 电子、通信与自动控制 • 上一篇    下一篇

基于博弈理论的认知无线电频谱分配

谭学治 刘玉涛 魏守明   

  1. 哈尔滨工业大学 通信技术研究所, 黑龙江 哈尔滨 150080
  • 收稿日期:2009-05-20 修回日期:2009-08-15 出版日期:2010-05-25 发布日期:2010-05-25
  • 通信作者: 谭学治(1957-),男,教授,博士生导师,主要从事专用移动通信系统、认知无线电、宽带无线应急通信研究. E-mail:tanxz1957@hotmail.com.
  • 作者简介:谭学治(1957-),男,教授,博士生导师,主要从事专用移动通信系统、认知无线电、宽带无线应急通信研究.
  • 基金资助:

    国家“863”计划项目(2008AA12Z305)

Game-Based Spectrum Allocation in Cognitive Radio Networks

Tan Xue-zhi  Liu Yu-tao  Wei Shou-ming   

  1. Communication Research Center,Harbin Institute of Technology,Harbin 150080,Heilongjiang,China
  • Received:2009-05-20 Revised:2009-08-15 Online:2010-05-25 Published:2010-05-25
  • Contact: 谭学治(1957-),男,教授,博士生导师,主要从事专用移动通信系统、认知无线电、宽带无线应急通信研究. E-mail:tanxz1957@hotmail.com.
  • About author:谭学治(1957-),男,教授,博士生导师,主要从事专用移动通信系统、认知无线电、宽带无线应急通信研究.
  • Supported by:

    国家“863”计划项目(2008AA12Z305)

摘要: 在认知用户效用函数的基础上,应用寡头市场博弈模型来解决频谱分配中的授权用户博弈问题.根据认知用户的效用函数以及Bertrand、Cournot均衡理论提出了授权用户信道竞价的动态Bertrand博弈算法.理论与仿真结果表明:稳定的纳什均衡解与速率调整参数有关,当速率调整参数小于0.020时,可以在较短的时间内获得稳定的信道价格;同时,纳什均衡点与边际成本有关,较高的边际成本可以获得较高的信道价格.

关键词: 认知无线电, 频谱分配, 差别寡头市场, Cournot均衡, Bertrand均衡

Abstract:

Based on the utility function of cognitive users,the game of licensed users in spectrum allocation is solved with the help of the oligopoly market game model.Then,based on the utility function of cognitive users and the theories of Bertrand and Cournot equilibrium,a dynamic Bertrand game algorithm is proposed for the channel pricing of licensed users.Theoretical analysis and simulation results show that the stability of Nash equilibrium solution is related to the regulative rate,that stable channel price can be obtained in a short time when the regulative rate is less than 0.020,that the Nash equilibrium point is related to the marginal cost,and that higher channel price can be obtained with a higher marginal cost.

Key words: cognitive radio, spectrum allocation, differentiated oligopoly market, Cournot equilibrium, Bertrand equilibrium