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衰落信道下基于拟合优度检验的认知无线电频谱检测 被引量：9

Goodness of Fit testing for spectrum sensing in a cognitive radio fading channel
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摘要 本文提出衰落信道下一种基于拟合优度检验的认知无线电频谱检测方法,采用Anderson-Darling(AD)检验代替传统的假设检验,通过计算接收到信道数据样本的分布函数与经验分布函数之间的Anderson-darling距离,并与备选的门限值比较,实现频谱检测。论文分析了衰落信道下AD检测虚警概率和平均检测概率下界。理论分析和仿真结果表明,在低信噪比,小样本条件下,AD检测比传统的能量检测具有更好的性能。 By applying Goodness of Fit testing in statistics into spectrum sensing, this paper gives a new sensing of existence of unknown signals in cognitive radio fading channel. Anderson-Darling test, one of Goodness of Fit tests, is used to derive a sensing method called Anderson-Darling sensing. Both theoretical analysis and simulations show that Anderson-Darling sensing method has much higher probability of detection than energy detection-based sensing, especially in a low SNR region and a case with a small number of samples.
作者 沈雷 王海泉
机构地区 杭州电子科技大学通信工程学院
出处 《电路与系统学报》 CSCD 北大核心 2010年第3期30-34,共5页 Journal of Circuits and Systems
基金 国家自然基金资助项目(60972049) 浙江省自然科学基金(Y1090846) 浙江省教育厅资助项目(KYZ084409018)
关键词 拟合优度检验 Anderson.Darling检测 认知无线电 频谱检测 能量检测 Goodness of Fit test Anderson-Darling sensing cognitive radio spectrum sensing energy detection-based sensing
分类号 TN911.72 [电子电信—通信与信息系统]
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参考文献9

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同被引文献80

  • 1李冰,郑瑾,葛临东.基于NPR调制滤波器组的动态信道化滤波[J].电子学报,2007,35(6):1178-1182. 被引量：18
  • 2J Ma, G Zhao, Y Li. Soft combination and detection for cooperative spectrum sensing in cognitive radio networks [J]. IEEE Trans.wireless commun., 2008, 7(11): 4502-4507.
  • 3Federico Penna, Roberto Garello, Maurizio A Spirito. Cooperative spectrum sensing based on the limiting eigenvalue ratio distribution in Wishart Matrices [J]. IEEE communications letters, 2009, 13(7): 507-509.
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  • 5R Tandra, A Sahai. Fundamental limits on detection in low SNR under noise uncertainty [A], Proc.IEEE Int. Conf. Wireless Networks,Commun. And Mobile Computing [C]. Maui, Hi, Vol.1, June.
  • 6T W Anderson, D A Darling. Asymptotic theory of certain "Goodness of Fit", Criteria Based on Stochastic Processes [J]. The annals of Mathematical Statistics, 1952, 21.23(2): 193-212.
  • 7T W Stephens, EDF statistics for Goodness of Fit and some Comparisons [J]. Journal of the American Statistical Association, 1974, 69(347): 730-737.
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  • 10Sonnenschein A, Fishman P M. Radiometrie detection of spread spectrum signals in noise of unknown power [ J ]. IEEE Trans. Aerospace Electron. Systems, 1992,28 (6) :654 - 660.

引证文献9

二级引证文献15

电路与系统学报
2010年 第3期

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