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干扰系统先验信息未知的宽带能量检测 被引量：10

Energy Detection about Broadband Signal without Priori Information of Interference System
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摘要 为了使感知无线电在宽带频谱中对干扰系统先验信息未知的信号进行能量检测时获得更好的检测性能,建立了一个基于采样的宽带频谱模型并且推导出了基于最小错判率准则的判决门限闭式解.仿真结果表明,在宽带信号能量检测中采用最小错判率准则比使用传统窄带信号能量检测判决准则能在干扰系统先验信息未知的情况下获得更好的信号检测性能. In order to improve the performance of energy detection on broadband signals without priori information of interference system,a broadband spectrum model based on sampling is set up,and the closed-form of the decision threshold based on the minimum-error-rate criteria is derived.Simulation shows that the minimum error rate detection outperforms traditional narrowband signal detection in broadband scenario in absence of priori information.
作者 刘子扬 彭涛 郭海波 王文博
机构地区 泛网无线通信教育部重点实验室(北京邮电大学) 国家知识产权局专利局专利审查协作北京中心通信审查部
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2012年第5期31-35,共5页 Journal of Beijing University of Posts and Telecommunications
基金 国家科技重大专项项目(2012ZX03003011 2012ZX03003007) 国家重点基础研究发展计划项目(2012CB316005) 诺基亚 国家自然科学基金-广东联合基金项目(U1035001)
关键词 感知无线电 能量检测 宽带 最佳门限 cognitive radio energy detection broadband optimal threshold
分类号 TN929.53 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

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  • 2Andrea Mariani, Andrea Giorgetti, Marco Chiani.Effects of noise power estimation on energy detection forcognitive radio applications [ J ]. IEEE Transactions onWireless Communications, 2011,12( 12) ; 3410-3420.
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二级参考文献8

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共引文献23

同被引文献35

  • 1杨志华,张钦宇,张乃通,王野.基于IEEE 802.15.3a信道的UWB能量检测系统的平均捕获性能[J].中国科学：信息科学,2010,40(9):1251-1263. 被引量：3
  • 2Joseph M. Cognitive radio: making software radios more personal[J]. IEEE Peraonal Communications, 1999, 6(4): 13-18.
  • 3Quan Zhi, Cui Shu-guang , Vincent P H, ei al. Collaborative wideband sensing for cognitive radios[J]. IEEE Signal Processing Magazine, 2009, 25(6): 60-73.
  • 4Zhang Wei, Mallik R K, and Leraief K B. Cooperative spectrum sensing optimization in cognitive radio networks[C]. Proceedings of the IEEE International Conference on Communications (ICC), Beijing, 2008: 3411-3415.
  • 5Kim Kyungtae, Xin Van, and Rangarajan S. Energy detection based spectrum sensing for cognitive radio: an experimental study[C]. Proceedings of Global Telecommunications Conference, Miami, FL, 2010: 1-5.
  • 6Liu Yi-xian, Zeng Chun-yan, Wang Hong-jiang, et al . Energy detection threshold optimization for cooperative spectrum sensing[C]. Proceedings of 2nd International Conference on ICACC, Shenyang, 2010: 566-570.
  • 7Kozal A S B, Merabti M, and Bouhafs F. An improved energy detection scheme for cognitive radio networks in low SNR region[C]. Proceedings of the IEEE Symposium on Computers and Communications (ISCC), Cappadocia, 2012: 684-689.
  • 8Atapattu S, Tellambura C, and Hai Jian. Energy detection based cooperative spectrum sensing in cognitive radio networks[J]. IEEE Transactions on Wireless Communications, 2011, 10(4): 1232-124l.
  • 9Lin Wei and Zhang Qin-yu. A design of energy detector in cognitive radio under noise uncertainty[C]. Proceedings of 11 th IEEE Singapore International Conference on Communication Systems, Guangzhou, 2008: 213-217.
  • 10Shent B, Huang Long-yang, Zhao Cheng-shi, et al . Energy detection based spectrum sensing for cognitive radios in noise of uncertain power[C]. Proceedings of International Symposium on Communications and Information Technologies, Lao, 2008: 628-633.

引证文献10

二级引证文献23

北京邮电大学学报
2012年 第5期

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