摘要
由于无线通信用户的增多和采用的固定频谱分配模式,使频谱资源越来越紧缺,认知无线电的出现极大地提高了频谱的利用率。该文对基于能量检测的单节点检测和协作检测技术进行了分析和讨论,重点分析了协作检测中的数据融合算法,并对几种融合算法和能量检测算法进行了性能的仿真分析。通过分析及仿真结果可以看出,协作检测与单节点检测相比,有效地提高了检测概率。
Because the users of wireless communications increased and the spectrum allocation modes fixed,making more and more spectrum resources shortage.Cognitive radio appear greatly improves the utilization ratio of the spectrum.This paper analyzes and discusses energy detection of single node detection and collaboration detection technology,and analyses the data fusion algorithm of cooperative detection,then simulat the several fusion algorithm and energy detection algorithm.Through the analysis and simulation results we can see,the collaboration detection compared to the single node detection,improve the detection probability effectively.
出处
《电子质量》
2010年第12期16-18,共3页
Electronics Quality
关键词
认知无线电
能量检测
协作频谱感知
数据融合
Cognitive radio
Energy detection
Collaboration spectrum perception
Data fusion