Matched Filter Based Spectrum Sensing When Primary User Has Multiple Power Levels

作     者：ZHANG Xinzhi GAO Feifei CHAI Rong JIANG Tao 

作者机构：Key Lab of Mobile Communication TechnologyChongqing University of Posts and Telecommunications Department of AutomationTsinghua UniversityState Key Lab of Intelligent Technologies and SystemsTsinghua National Laboratory for Information Science and Technology(TNList) Beijing Wuhan National Laboratory for OptoelectronicsDepartment of Electronic and InformationHuazhong University of Science and Technology 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2015年第12卷第2期

页      面：21-31页

核心收录：

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported in part by the National Basic Research Program of China(973 Program)under Grant 2013CB336600 the Beijing Natural Science Foundation under Grant 4131003 the National Natural Science Foundation of China under Grant{61201187,61422109} the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions under Grant YETP0110 

主　　题：spectrum sensing power recognition matched filter multiple primary transmit power multiple hypothesis testing power mask 

摘      要：In this paper,we investigate the matched filter based spectrum sensing in a more reasonable cognitive radio(CR) scenario when the primary user(PU) has more than one transmit power levels,as regulated in most standards,i.e.,IEEE 802.11 Series,GSM,LTE,LTE-A,*** new multiple primary transmit power(MPTP) scenario is specialized by two different targets:detecting the presence of PU and identifying the power *** to the traditional binary sensing where only the presence of PU is checked,SU may attain more information about the primary network(making CR more intelligent) and design the subsequent optimization *** key technology is the multiple hypothesis testing as opposed to the traditional binary hypothesis *** discuss two situations under whether the channel phase is known or not,and we derive the closed form solutions for decision regions and several performance metrics,from which some interesting phenomenons are observed and the related discussions are *** examples are provided to corroborate the proposed studies.