基于压缩感知的协作感知无线电频谱检测  

Cooperative spectrum sensing with compressed sensing in cognitive radio

作　　者：钱永青 QIAN Yong-qing(School of Electrical and Electronic Engineering,Wuhan Polytechnic University,Wuhan 430048,China)

机构地区：[1]武汉轻工大学电气与电子工程学院,武汉430048

出　　处：《武汉轻工大学学报》2021年第4期60-65,共6页Journal of Wuhan Polytechnic University

基　　金：湖北省自然科学基金项目(2019CFC877).

摘　　要：在感知无线电中传统的频谱检测一般是基于奈奎斯特采样定理,在采样时会浪费采样资源产生一些冗余数据。为节约采样资源,采用压缩感知理论对感知无线电频谱进行检测。同时,还采用了多用户协作进行频谱检测来提升频谱检测的有效性。仿真实验表明,采用压缩感知进行多用户协作频谱检测是确实可行的,其既可以节约采样资源又可以增强频谱检测有效性。Generally,traditional spectrum detection methods in cognitive radio obey Nyquist sampling theorem,and sampling resources will be wasted and some redundant data will be produced in sampling.In order to save sampling resources,this paper uses compressed sensing theory to detect the radio spectrum in cognitive radio.At the same time,this paper also employs multi-user cooperation for spectrum detection to improve the effectiveness of spectrum detection.Experimental results indicate that it is feasible to use compressed sensing for multi-user cooperative spectrum detection,and it can not only save sampling resources,but also enhance the effectiveness of spectrum detection.

关 键 词：压缩感知 感知无线电 频谱检测 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]