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Research of Spectrum Sensing and Management Technology in Cognitive Radio Communication System

Author: WangChaoBo
Tutor: LiJianDong
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Cognitive radio Spectrum sensing Spectrum Management Environment Simulator
CLC: TN925
Type: Master's thesis
Year: 2011
Downloads: 142
Quote: 0
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Abstract


With the rapid development of wireless communication technology , the use of spectrum resources is becoming more frequent , resulting in poor spectrum is becoming increasingly serious shortage of wireless spectrum limits the continued development of wireless communication . Cognitive radio can be \Therefore, cognitive radio has become a hot topic in recent years, research in the field of wireless communications . Cognitive radio , the most basic and most important part is the spectrum detection, only accurately detect the use situation of the spectrum , in order to more effectively carry out cognitive radio business . In this paper, spectrum sensing , resource management for the cognitive radio technology in the field of technology , in order to achieve effective use and management of valuable spectrum resources . This paper briefly describes the cognitive radio research profile and its concepts and key technologies of cognitive radio spectrum sensing technology to do the research ; Second, the use of the USRP platform design to achieve a cognitive radio spectrum resources management projects and programs . On this basis , the focus of the design to achieve the cognitive radio spectrum sensing , and measured statistical analysis of 30-512MHz , the external environment according to the sensing algorithm , so not only to verify the correctness of the algorithm perceived , and also illustrates the outside there is a large number can be repeated use of spectrum resources , and provide a more favorable guarantee for cognitive radio applications ; Finally, in support of the overall system needs, according to the results of statistical analysis , design and implementation of environmental signal simulator .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
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