| 快速收敛的认知无线电功率控制算法 |
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| 引用本文： | 赵成林,李鹏,蒋挺.快速收敛的认知无线电功率控制算法[J].北京邮电大学学报,2009,32(1):73-76. |
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| 作者姓名： | 赵成林 李鹏 蒋挺 |
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| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876 |
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| 摘 要： | 针对认知无线电系统中不同认知用户的通信需求，以码分多址（CDMA，code division multiple access)认知无线电系统为通信平台，通过设计一种有效的代价函数，提出了一种新的非合作功率控制博弈算法，并证明了该算法纳什均衡的存在性和唯一性.仿真结果表明，与其他几种功率控制算法相比较，该算法具有较快的收敛速度，能够以较低的功率水平满足不同用户的信干比要求.
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| 关 键 词： | 认知无线电 非合作博弈 收敛性 |
| 收稿时间： | 2008-6-23 |
| 修稿时间： | 2008-10-15 |
A Power Control Algorithm with Faster Convergence for Cognitive Radio |
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| ZHAO Cheng-lin,LI Peng,JIANG Ting.A Power Control Algorithm with Faster Convergence for Cognitive Radio[J].Journal of Beijing University of Posts and Telecommunications,2009,32(1):73-76. |
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| Authors: | ZHAO Cheng-lin LI Peng JIANG Ting |
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| Affiliation: | School of Information and Telecommunication Engineering;Beijing University of Posts and Telecommunications;Beijing 100876;China |
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| Abstract: | An adaptive power control game algorithm was proposed based on code division multiple access cognitive radio (CR) system by designing an effective cost function. The uniqueness and existence of the Nash Equilibrium was proved for the scheme. Simulations show that the lower power will be obtained with faster convergence compared with other three algorithms while the signal to interference ratio (SIR) is satisfied. |
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| Keywords: | cognitive radio non-cooperative game convergence |
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