Real-time spectrum sensing using software defined radio platforms

Alexandru Martian ()
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Alexandru Martian: University Politehnica of Bucharest

Telecommunication Systems: Modelling, Analysis, Design and Management, 2017, vol. 64, issue 4, No 14, 749-761

Abstract: Abstract As the lack of frequency resources became a critical problem in recent years, solutions had to be found in order to use the available spectrum in a more efficient way. Cognitive radio (CR) technology is a possible answer to this, by proposing a dynamic spectrum access approach, which allows unlicensed users to access unused licensed frequency bands. In order to detect the presence of licensed users, any CR equipment has to perform a spectrum sensing process. This paper presents a practical solution for building this essential part of a frequency agile device. The implementation of the proposed real-time spectrum sensing solution is based on commercial software defined radio platforms. Hardware and software details regarding the described prototype are given, together with aspects related to the optimal configuration of the used platforms for such an application. Moreover, the performance that can be obtained using the proposed solution is evaluated through measurements performed in several different scenarios.

Keywords: Spectrum sensing; Energy detection; Cognitive radio; Software defined radio; USRP (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s11235-016-0205-z

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