| 认知无线电中一种新的基于MED的频谱感知算法 |
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| 引用本文： | 王韩瑞,李满江,唐鹏程,杨喜,雷可君.认知无线电中一种新的基于MED的频谱感知算法[J].吉首大学学报(自然科学版),2018,39(2):50-54. |
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| 作者姓名： | 王韩瑞 李满江 唐鹏程 杨喜 雷可君 |
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| 作者单位： | (吉首大学信息科学与工程学院，湖南 吉首 416000) |
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| 摘 要： | 提出了一种新的基于最大特征值检测的频谱感知算法，并利用最新的大维随机矩阵理论的结果来获取新的理论判决门限.该门限能够使检测器产生更加可靠的感知性能，获得更高的检测概率.仿真结果验证了新算法的有效性.
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| 关 键 词： | 认知无线电 频谱感知 最大特征值检测 虚警概率 判决门限 |
A Novel Spectrum Sensing Algorithm Based on MED for Cognitive Radio |
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| WANG Hanrui,LI Manjiang,TANG Pengcheng,YANG Xi,LEI Kejun.A Novel Spectrum Sensing Algorithm Based on MED for Cognitive Radio[J].Journal of Jishou University(Natural Science Edition),2018,39(2):50-54. |
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| Authors: | WANG Hanrui LI Manjiang TANG Pengcheng YANG Xi LEI Kejun |
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| Institution: | (College of Information Science and Engineering,Jishou University,Jishou 416000,Hunan China) |
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| Abstract: | A novel spectrum sensing algorithm based on maximum eigenvalue detection (MED) is proposed for cognitive radio.Using the recent results of the large dimensional random matrix theory (LDRMT),a new theoretical decision threshold is obtained for MED method.The new decision threshold has more reliable sensing performance and higher detection probability.Simulation results verify the effectiveness of the new MED algorithm. |
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| Keywords: | cognitive radio spectrum sensing maximum eigenvalue detection false-alarm probability decision threshold |
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