Semi-Definite Programming Based Waveform Design for Spectrum Sensing
In order to solve the problem of spectrum shortages, dynamic spectrum access based cognitive radio technology was proposed, and the technology of spectrum sensing is the foundation of cognitive radio. In this paper, a semi-definite programming based waveform design algorithm is proposed for spectrum...
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| Veröffentlicht in: | Applied Mechanics and Materials 2013-10, Vol.457-458 (Frontiers of Mechanical Engineering and Materials Engineering II), p.1491-1497 |
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| container_issue | Frontiers of Mechanical Engineering and Materials Engineering II |
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| container_title | Applied Mechanics and Materials |
| container_volume | 457-458 |
| creator | Zhao, Wan Jun Sun, Lu Kuan Wu, Xuan Li |
| description | In order to solve the problem of spectrum shortages, dynamic spectrum access based cognitive radio technology was proposed, and the technology of spectrum sensing is the foundation of cognitive radio. In this paper, a semi-definite programming based waveform design algorithm is proposed for spectrum sensing. Considering the energy concentration property of Chirp signal, the Chirp signal is adopted as the basic function, which makes the composite waveform perform like impulse function in fractional Fourier transform domain. Simulation results show that the NESP (Normalized Effective Signal Power) of the designed waveform using the proposed algorithm can be over 70%, and the designed waveform also retains good energy concentration property in fractional domain. |
| doi_str_mv | 10.4028/www.scientific.net/AMM.457-458.1491 |
| format | Article |
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In this paper, a semi-definite programming based waveform design algorithm is proposed for spectrum sensing. Considering the energy concentration property of Chirp signal, the Chirp signal is adopted as the basic function, which makes the composite waveform perform like impulse function in fractional Fourier transform domain. 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| subjects | Algorithms Chirp signals Cognitive radio Detection Fourier transforms Programming Shortages Waveforms |
| title | Semi-Definite Programming Based Waveform Design for Spectrum Sensing |
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