计算机与现代化

• 算法设计与分析 • 上一篇    下一篇

一种改进的认知无线电网络博弈功率控制算法

  

  1. 西南油气田物质公司,四川成都610041
  • 收稿日期:2014-02-27 出版日期:2014-04-17 发布日期:2014-04-23
  • 作者简介:作者简介: 张羽(1972),男,四川富顺人,成都西南油气田物质公司经理,学士,研究方向:无线网络资源分配算法,跨层优化。

 
An Improved Power Control Algorithm in Cognitive Radio Networks 
Based on Game Theory

  1. Southwest Oil and Gas Field Company, Chengdu 610041, China
  • Received:2014-02-27 Online:2014-04-17 Published:2014-04-23

摘要:  

摘要: 基于David Goodman的非合作功率控制博弈方法,本文提出一种适用于认知无线电网络的功率控制博弈算法,对S型有效函数和代价函数进行改进和优化,实现认知用户功率控制的公平性,并证明该算法纳什均衡的存在性。仿真结果表明,该算法使认知用户的总吞吐量提升,发射功率降低,效用提高,且在一定程度上兼顾了系统的公平性。

关键词:  , 认知无线电网络, 功率控制, 博弈论, 代价函数, 公平性

Abstract:  

Abstract:  Based on the noncooperative power control game created by David Goodman, we propose a new sigmoid efficiency function and an improved pricing function suitable for Cognitive Radio Network (CRN). This pricing function considers the fairness among users, and the existence of the Nash Equilibrium (NE) is proved. Simulation results show that the proposed power control game not only enhances the network throughput, reduces emission power of cognitive users and improves the utility, but also takes into account the system fairness to some extent than other previous schemes.

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