无线电工程2017，Vol.47Issue(2)：23-27,5.DOI:10.3969/j.issn.1003-3106.2017.02.06
基于动态门限的频谱感知算法研究
Research on Spectrum Sensing Algorithm Based on Dynamic Threshold
摘要
Abstract
The energy detection algorithm of cognitive radio is widely used in the practical engineering application,but its major defect is difficult threshold judgement,and it is difficult to set the threshold while taking into account the false alarm probability and leakage alarm probability.Based on the energy detection algorithm,this paper proposes a spectrum sensing algorithm based on dynamic threshold in view of the current situation of noise average power.The simulation results show that the proposed algorithm can always minimize the error probability of overall spectrum detection while taking into account the false alarm probability and leakage alarm probability at the same time,so it is feasible.关键词
认知无线电/能量检测/动态门限Key words
cognitive radio/energy detection/dynamic threshold分类
信息技术与安全科学引用本文复制引用
郝博雅,马传焱,时荔蕙,王春龙..基于动态门限的频谱感知算法研究[J].无线电工程,2017,47(2):23-27,5.基金项目
国家高技术研究发展计划("863"计划)基金资助项目(2013AA122105). （"863"计划）
