A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension
In this work, two novel methodologies for the multiband spectrum sensing in cognitive radios are implemented. Methods are based on the continuous wavelet transform (CWT) and the multiresolution analysis (MRA) to detect the edges of available holes in the considered wideband spectrum. Besides, MRA is...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/19/6/1322 |
| _version_ | 1811263445772795904 |
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| author | Yanqueleth Molina-Tenorio Alfonso Prieto-Guerrero Rafael Aguilar-Gonzalez |
| author_facet | Yanqueleth Molina-Tenorio Alfonso Prieto-Guerrero Rafael Aguilar-Gonzalez |
| author_sort | Yanqueleth Molina-Tenorio |
| collection | DOAJ |
| description | In this work, two novel methodologies for the multiband spectrum sensing in cognitive radios are implemented. Methods are based on the continuous wavelet transform (CWT) and the multiresolution analysis (MRA) to detect the edges of available holes in the considered wideband spectrum. Besides, MRA is also combined with the Higuchi fractal dimension (a non-linear measure) to establish the decision rule permitting the detection of the absence or presence of one or multiple primary users in the studied wideband spectrum. Methods were tested on simulated and real signals showing a good performance. The results present these two methods as effective options for detecting primary user activity on the multiband spectrum. The first methodology works for 95% of cases, while the second one presents 98% of effectivity under simulated signals of signal-to-noise ratios (SNR) higher than 0 dB. |
| first_indexed | 2024-04-12T19:45:32Z |
| format | Article |
| id | doaj.art-7a0d2191c7684a00923e1a4ab20e4cfb |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-12T19:45:32Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7a0d2191c7684a00923e1a4ab20e4cfb2022-12-22T03:18:59ZengMDPI AGSensors1424-82202019-03-01196132210.3390/s19061322s19061322A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal DimensionYanqueleth Molina-Tenorio0Alfonso Prieto-Guerrero1Rafael Aguilar-Gonzalez2Master of Sciences and Information Technologies, Metropolitan Autonomous University Iztapalapa, Mexico City 09360, MexicoElectrical Engineering Department, Metropolitan Autonomous University Iztapalapa, Mexico City 09360, MexicoElectrical Engineering Department, Metropolitan Autonomous University Iztapalapa, Mexico City 09360, MexicoIn this work, two novel methodologies for the multiband spectrum sensing in cognitive radios are implemented. Methods are based on the continuous wavelet transform (CWT) and the multiresolution analysis (MRA) to detect the edges of available holes in the considered wideband spectrum. Besides, MRA is also combined with the Higuchi fractal dimension (a non-linear measure) to establish the decision rule permitting the detection of the absence or presence of one or multiple primary users in the studied wideband spectrum. Methods were tested on simulated and real signals showing a good performance. The results present these two methods as effective options for detecting primary user activity on the multiband spectrum. The first methodology works for 95% of cases, while the second one presents 98% of effectivity under simulated signals of signal-to-noise ratios (SNR) higher than 0 dB.http://www.mdpi.com/1424-8220/19/6/1322cognitive radiosmultiband spectrum sensingmultiresolution analysiscontinuous wavelet transformHiguchi fractal dimension |
| spellingShingle | Yanqueleth Molina-Tenorio Alfonso Prieto-Guerrero Rafael Aguilar-Gonzalez A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension Sensors cognitive radios multiband spectrum sensing multiresolution analysis continuous wavelet transform Higuchi fractal dimension |
| title | A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension |
| title_full | A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension |
| title_fullStr | A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension |
| title_full_unstemmed | A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension |
| title_short | A Novel Multiband Spectrum Sensing Method Based on Wavelets and the Higuchi Fractal Dimension |
| title_sort | novel multiband spectrum sensing method based on wavelets and the higuchi fractal dimension |
| topic | cognitive radios multiband spectrum sensing multiresolution analysis continuous wavelet transform Higuchi fractal dimension |
| url | http://www.mdpi.com/1424-8220/19/6/1322 |
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