CAJ | 학술논문

频谱感知过程中的主用户识别是目前认知无线电研究的主要问题之一.利用主用户电台信号特征,提出一种新的、实用的认知无线电主用户识别方法.通过利用小波及聚类分析对电台开机或通信模式切换时产生的瞬态信号进行分析,提出了两个特征指标用于电台的识别从而判断用户的身份.计算机仿真结果验证了该方法的可行性,并给出了下一步研究方向.
빈보감지과정중적주용호식별시목전인지무선전연구적주요문제지일.이용주용호전태신호특정,제출일충신적、실용적인지무선전주용호식별방법.통과이용소파급취류분석대전태개궤혹통신모식절환시산생적순태신호진행분석,제출료량개특정지표용우전태적식별종이판단용호적신빈.계산궤방진결과험증료해방법적가행성,병급출료하일보연구방향.
The identification of the primary user is one of the most important issue in the spectrum sensing process for the cognitive radio networks.The characteristic of the primary user'signal is utilized in order to bring forward a new,practical method to recognize the real users.This paper attempts to analyze the transient signal which can be generated when the radio station starts or communication roodule switches by utilizing the wavelet transform and clustering.In order to identify the radio station,two indicator characteristics are pointed out,which can help to determine the status of the user.The simulation results show that the method is feasible,and finally future directions are given.