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认知无线电系统中基于归一化效用函数的功率控制方法 被引量：4

Power Control Based on Unitary Utility Function in Cognitive Radio System
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摘要 采用了博弈论的方法来实现对CR用户发送功率的控制,提出了适合CR技术的归一化效用函数,并且引入了代价函数,证明了在博弈过程中,该函数存在纳什均衡并且均衡点唯一。仿真结果表明了该方法可行且计算较为简单,分析并找到了效用函数中较为合适的平稳参数和代价因子。 Game theory is applied to model the power control of the transmitter in basic congnitive cycle.We introduce a new unitary utility function,which is very suitable for nd s form：r we define the pricing funtion cognitive radio system.Specifically,we also employ pricing function.It is proved that the Nash Equilibrium of the new utility function is existed and unique.We use MATLAB for simulation which denotes the unitary utility function is quiet simple and reasonable.Otherwise,we also analyze the result and obtain suitable smooth parameter and price factor.
作者 林玉清 王霞 朱琦
机构地区 南京邮电大学江苏省无线通信重点实验室 南京邮电大学教育部宽带无线通信与传感网技术重点实验室
出处 《南京邮电大学学报（自然科学版）》 2011年第1期39-44,共6页 Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金 国家重点基础研究发展计划(973计划)(2007CB310607) 国家自然科学基金(60772062) 国家科技重大专项(2011ZX03001-006-02 2011ZX03005-004-03)资助项目
关键词 认知无线电 博弈论 功率控制 归一化效用函数 平稳参数 代价因子 cognitive radio game theory power control unitary utility function smooth parameter price factor
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献14

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二级参考文献16

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共引文献12

同被引文献37

  • 1殷志明,谢剑英.无线数据网络中基于博弈论方法的功率控制[J].计算机研究与发展,2004,41(6):909-915. 被引量：13
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  • 6Gupta P, Kumar P R. The capacity of wireless networks[J]. IEEE Trans. on Information Theory, 2002,46(2) :388 - 404.
  • 7Goodman D, Mandayam N. Power control for wireless data[J]. IEEE Personal Communications, 2000,7 (2) : 48 - 54. S.
  • 8araydar C, Mandayam N B, Goodman D J. Efficient power con- trol vis pricing in wireless data networks[J]. IEEE Trans. on Communications ,2002,50(2) :291 - 303.
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引证文献4

二级引证文献17

南京邮电大学学报（自然科学版）
2011年 第1期

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