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首页> 外文会议>2019 IEEE International Symposium on Measurements amp; Networking >The effect of noise variance uncertainty for spectrum sensing in IEEE 802.22.3
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The effect of noise variance uncertainty for spectrum sensing in IEEE 802.22.3

机译：噪声方差不确定性对IEEE 802.22.3中频谱感测的影响

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摘要

The paper analyses the influence of noise variance uncertainty on the performance of an energy detection-based spectrum sensing algorithm thought for the Dynamic Spectrum Access framework. The analysis is based on spectrum acquisitions carried out on surely vacant channels by employing a commercial Software Defined Radio. The effects of noise variance variability is then evaluated in simulation environment by imposing the variations measured in actual power measurements during the experimental campaign lasting 48-hours. The achieved results clearly prove a significant performance degradation in terms of probability of both detection and false alarm, which in turn could provoke the loss of compliance of the spectrum sensing performance with respect to constraints given by international standards, as IEEE 802.22.3. The paper paths the way to further investigations aiming at providing an upper bound to noise power estimation time period in order to keep the noise uncertainty under tolerable limits.
机译：本文分析了噪声方差不确定性对基于动态频谱访问框架的基于能量检测的频谱感知算法性能的影响。该分析基于通过使用商业软件定义无线电在肯定空闲的信道上进行的频谱采集。然后，通过在持续48小时的实验活动期间，在实际功率测量中施加测得的变化，从而在仿真环境中评估噪声方差变化的影响。所获得的结果清楚地证明，就检测和误报的可能性而言，性能显着下降，这反过来又可能招致频谱感测性能不符合国际标准IEEE 802.22.3给出的约束。本文为进一步研究提供了一个途径，旨在提供噪声功率估计时间段的上限，以将噪声不确定性保持在可容忍的范围内。

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  • 来源
  • 会议地点 Catania(IT)
  • 作者

    G. Cerro; L. Ferrigno; E. Grossi; G. Miele; L. Venturino; D. Capriglione;

  • 作者单位

    Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino, Italy;

    Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino, Italy;

    Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino, Italy;

    Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino, Italy;

    Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino, Italy;

    Department of Industrial Engineering, University of Salerno, Fisciano, Italy;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Noise uncertainty; Spectrum sensing; IEEE 802.22.3; cognitive radio; Software defined radio;

    机译：噪声不确定性;频谱感测; IEEE 802.22.3;认知无线电;软件定义无线电;;

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