摘要
在现代生活中,无线通信的应用改变了人们的生活方式,并且已经深深植入人类的日常生活。频谱利用率低已成为无线通信应用发展的阻碍,认知无线电技术可以从理论上解决频谱利用率不高的问题,因此为提高频谱利用率引入了基于认知无线电的频谱能量检测算法。在等增益合并p次方能量检测算法的基础上,通过累加p次方前面的不同系数提高频谱层面无线电的检测概率。仿真实验表明该改进算法在不同的p次方值下较原有算法频谱检测概率更高,可为认知无线电能量检测提供一种新标准。
In modern life,the application of wireless communication has changed people＇s way of life,and has been deeply embedded in human daily life.Low spectrum utilization has become an obstacle to the development of wireless communication applications,cognitive radio technology can theoretically solve the low utilization rate,therefore,spectrum energy detection algorithm based on cognitive radio is introduced to improve the spectrum efficiency.Based on the equal energy synthesis algorithm,the detection probability of radio spectrum in spectrum layer is improved by accumulating different coefficients before p square.The simulation results show that the improved algorithm has higher probability of detection than the original algorithm at different sub-values,which can provide a new standard for cognitive radio energy detection.
作者
顾慧敏
李东新
Gu Huimin;Li Dongxin(College of Computer and Information, Hohai University, Nanjing 211100, China)
出处
《国外电子测量技术》
2018年第4期7-10,共4页
Foreign Electronic Measurement Technology
关键词
认知无线电
频谱检测
能量检测
cognitive radio
spectrum detection
energy detection
