| 认知无线网络中基于凸优化的功率分配研究 |
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| 引用本文： | 谢军辉,冯平.认知无线网络中基于凸优化的功率分配研究[J].计算机应用研究,2010,27(3):1161-1162. |
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| 作者姓名： | 谢军辉 冯平 |
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| 作者单位： | 重庆邮电大学,通信网测试技术重点实验室,重庆,400065 |
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| 基金项目： | 重庆市教委自然科学基金资助项目（KJ080507） |
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| 摘 要： | 主要研究认知无线网络中基于OFDM（orthogonal frequency dinsion multiplexing）的功率分配问题。为将认知用户(secondary user,SU)对主用户(primary user,PU)的干扰功率限制在主用户可容忍的范围内，同时最大化认知用户的传输速率，提出了基于凸优化理论的功率分配方案。仿真结果表明，在主用户可容忍的干扰极限和认知用户总功率约束下，该方案能最大化认知用户的传输速率。
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| 关 键 词： | 认知无线电 正交频分复用 功率分配 凸优化 |
Power allocation for cognitive radio network based on convex optimization |
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| XIE Jun-hui,FENG Ping.Power allocation for cognitive radio network based on convex optimization[J].Application Research of Computers,2010,27(3):1161-1162. |
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| Authors: | XIE Jun-hui FENG Ping |
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| Affiliation: | (Key Lab of Communication Network Testing Technology, Chongqing University of Posts & Telecommunications,Chongqing 400065, China) |
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| Abstract: | This paper focued on the power allocation for OFDM-based cognitive radio network. In order to maximize the transmission rate of secondary users and insure the interference introduced to the primary users is within a tolerable range,this paper proposed a power allocation scheme based on convex optimization theory. Simulation results show that this scheme can maximize the transmission rate with the interference and total power constraint. |
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| Keywords: | cognitive radio OFDM power allocation convex optimization |
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