摘要
简要介绍了认知无线电中基于能量检测的频谱感知方法,在分析能量检测法原理和性能基础上,研究了噪声的不确定性对检测性能的影响.仿真表明,能量检测法是一种简单、有效的频谱感知方法.
This paper briefly presents the spectrum sensing method based on energy detection in cognitive radio,analyses the theory and performance of energy detection method,and discusses the impact of noise power uncertainty on detection performance.Computer simulation shows that the energy detection method is a simple and effective method of spectrum sensing.
出处
《广西工学院学报》
CAS
2009年第3期70-72,77,共4页
Journal of Guangxi University of Technology
基金
广西工学院自然科学基金(0704212)资助
关键词
认知无线电
频谱感知
能量检测法
噪声不确定
cognitive radio
spectrum sensing
energy detection method
noise power uncertainty
