Y. Miar, T. Aboulnasr, A. Yongaçoğlu, T. Aboulnasr
{"title":"简化DFT:一种新的认知无线电宽带频谱感知方法","authors":"Y. Miar, T. Aboulnasr, A. Yongaçoğlu, T. Aboulnasr","doi":"10.1109/DYSPAN.2011.5936262","DOIUrl":null,"url":null,"abstract":"Four simplified discrete Fourier transform (SDFT)-based spectrum sensing methods are introduced for power spectral density (PSD) estimation for cognitive radio (CR). The SDFT-based spectrum sensing techniques are less computationally complex than DFT techniques since no multiplications are required in the time-to-frequency domain conversion process. The simulation results and mathematical analyses indicate that the performance of the SDFT-based spectrum sensing method is comparable to that of the DFT-based one when the received signal spectrum is lightly occupied.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Simplified DFT: A novel method for wideband spectrum sensing in cognitive radio\",\"authors\":\"Y. Miar, T. Aboulnasr, A. Yongaçoğlu, T. Aboulnasr\",\"doi\":\"10.1109/DYSPAN.2011.5936262\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Four simplified discrete Fourier transform (SDFT)-based spectrum sensing methods are introduced for power spectral density (PSD) estimation for cognitive radio (CR). The SDFT-based spectrum sensing techniques are less computationally complex than DFT techniques since no multiplications are required in the time-to-frequency domain conversion process. The simulation results and mathematical analyses indicate that the performance of the SDFT-based spectrum sensing method is comparable to that of the DFT-based one when the received signal spectrum is lightly occupied.\",\"PeriodicalId\":119856,\"journal\":{\"name\":\"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-05-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/DYSPAN.2011.5936262\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/DYSPAN.2011.5936262","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Simplified DFT: A novel method for wideband spectrum sensing in cognitive radio
Four simplified discrete Fourier transform (SDFT)-based spectrum sensing methods are introduced for power spectral density (PSD) estimation for cognitive radio (CR). The SDFT-based spectrum sensing techniques are less computationally complex than DFT techniques since no multiplications are required in the time-to-frequency domain conversion process. The simulation results and mathematical analyses indicate that the performance of the SDFT-based spectrum sensing method is comparable to that of the DFT-based one when the received signal spectrum is lightly occupied.
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