| 认知无线电系统中基于归一化效用函数的功率控制方法 |
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| 引用本文： | 林玉清,王霞,朱琦. 认知无线电系统中基于归一化效用函数的功率控制方法[J]. 南京邮电大学学报(自然科学版), 2011, 31(1) |
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| 作者姓名： | 林玉清 王霞 朱琦 |
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| 作者单位： | 南京邮电大学,江苏省无线通信重点实验室,江苏,南京,210003;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,江苏,南京,210003 |
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| 基金项目： | 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 |
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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。
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| 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 |
Power Control Based on Unitary Utility Function in Cognitive Radio System |
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| LIN Yu-qing,WANG Xia,ZHU Qi. Power Control Based on Unitary Utility Function in Cognitive Radio System[J]. JJournal of Nanjing University of Posts and Telecommunications, 2011, 31(1) |
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| Authors: | LIN Yu-qing WANG Xia ZHU Qi |
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| Affiliation: | LIN Yu-qing1,2,WANG Xia1,ZHU Qi1,2 1.Jiangsu Key Laboratory of Wireless Communications,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2.Key Lab on Wideband Wireless Communications and Sensor Network Technology of Ministry of Education,China |
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| Abstract: | 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 obt... |
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| Keywords: | cognitive radio game theory power control unitary utility function smooth parameter price factor |
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