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Laplacian噪声下认知物联网频谱感知算法 被引量:1

Spectrum sensing algorithm for cognitive Internet of Things with Laplacian noise
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摘要 在认知物联网频谱感知场景中,针对Laplacian噪声干扰导致频谱检测性能降低的问题,提出了一种新的基于p范数的认知物联网多天线频谱感知方法。首先通过引入p范数对观测信号进行预处理,从而抑制噪声尖峰脉冲,然后利用指数函数构造检测统计量,提升统计量对脉冲特性的抑制性能,最后推导分析了所提算法判决门限的理论表达式。理论分析和仿真结果表明,所提算法可以有效提升Laplacian噪声下认知物联网频谱感知性能。
作者 刘小蒙 汪洋
出处 《计算机应用研究》 CSCD 北大核心 2020年第S02期279-281,共3页 Application Research of Computers
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