| 一种基于博弈论的认知CDMA频谱分配机制 |
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| 引用本文： | 李方伟,王程,朱江,龙吟.一种基于博弈论的认知CDMA频谱分配机制[J].电视技术,2014,38(15). |
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| 作者姓名： | 李方伟 王程 朱江 龙吟 |
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| 作者单位： | 重庆邮电大学,重庆邮电大学,重庆邮电大学,重庆邮电大学 |
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| 基金项目： | 国家自然科学基金项目(61102062)；教育部科学技术研究重点项目(212145)；重庆市科委自然科学基金项目(cstc2011jjA1192)；重庆市教委科学技术研究项目(KJ110503)；重庆邮电大学博士启动基金项目(A2010-11) |
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| 摘 要： | 针对认知无线电的频谱资源分配问题,提出了一种考虑认知用户间相互干扰行为的完全信息博弈模型。在最大化认知用户传输速率的条件下为其分配子载波以及功率,并且证明了纳什均衡的存在。仿真结果表明,该算法合理地对认知用户的效用函数进行了设计,算法能够很好地满足不同认知用户的速率需求,符合实际通信环境。提高了通信系统容量,并且能够较快地达到均衡状态以及具有较好的收敛性。
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| 关 键 词： | 认知无线电 频谱分配 博弈论 传输速率 干扰 |
| 收稿时间： | 1/6/2014 12:00:00 AM |
| 修稿时间： | 2014/2/17 0:00:00 |
Spectrum allocation mechanism Based on Game Theory in Cognitive CDMA |
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| Lifangwei,Wangcheng,Zhujiang and Longyin.Spectrum allocation mechanism Based on Game Theory in Cognitive CDMA[J].Tv Engineering,2014,38(15). |
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| Authors: | Lifangwei Wangcheng Zhujiang and Longyin |
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| Affiliation: | Chongqing university of Posts and Telecommunications,Chongqing university of Posts and Telecommunications,Chongqing university of Posts and Telecommunications,Chongqing university of Posts and Telecommunications |
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| Abstract: | According to spectrum allocation problem based on cognitive radio, we proposed a complete information game model base on the interference between cognitive users. And distribute subcarrier and power for cognitive users in the condition of maximize transmission rate cognitive users, then proved the existence of Nash equilibrium. The simulation results show that the algorithm designed the utility function of cognitive users reasonably, the algorithm can meet the demand of different rate of cognitive users very well, and conform to the actual communication environment. Improve the capacity of communication system, and could reach equilibrium quickly, also has a great convergence. |
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| Keywords: | Cognitive radio Spectrum allocation Game theory Transmission rate Interference |
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