Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy
Focused on the characteristic of cyclostationary spectrum of signal and the spectrum sensing in low signal-to-noise ratio,an adaptive decision threshold spectrum sensing algorithm was proposed,which combines cyclostationary spectrum sensing with energy detection.By weighting the sum of probabilities...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-11-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0095-09/ |
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| _version_ | 1841539939239460864 |
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| author | Hao-ye ZHANG Zhi-hua BAO Shi-bing ZHANG |
| author_facet | Hao-ye ZHANG Zhi-hua BAO Shi-bing ZHANG |
| author_sort | Hao-ye ZHANG |
| collection | DOAJ |
| description | Focused on the characteristic of cyclostationary spectrum of signal and the spectrum sensing in low signal-to-noise ratio,an adaptive decision threshold spectrum sensing algorithm was proposed,which combines cyclostationary spectrum sensing with energy detection.By weighting the sum of probabilities of detection and false alarm,estimating the eigenvalues of the cyclostationary spectrum,the algorithm provides an adaptive decision threshold which could differentiate the primary signal from the background noise.The simulation results show that the algorithm could perform well in low signal-to-noise ratio and remove the effect of noise uncertainty on the spectrum sensing.It outperforms maximum-minimum eigenvalue and blind detection with 4dB and 8dB respectively in signal-to-noise ratio,and has robustness to different modulated primary signal. |
| format | Article |
| id | doaj-art-511960a1c7294841932edb0b466eba49 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-511960a1c7294841932edb0b466eba492025-01-14T06:30:41ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-11-01329510359658872Adaptive spectrum sensing algorithm based on cyclostationary spectrum energyHao-ye ZHANGZhi-hua BAOShi-bing ZHANGFocused on the characteristic of cyclostationary spectrum of signal and the spectrum sensing in low signal-to-noise ratio,an adaptive decision threshold spectrum sensing algorithm was proposed,which combines cyclostationary spectrum sensing with energy detection.By weighting the sum of probabilities of detection and false alarm,estimating the eigenvalues of the cyclostationary spectrum,the algorithm provides an adaptive decision threshold which could differentiate the primary signal from the background noise.The simulation results show that the algorithm could perform well in low signal-to-noise ratio and remove the effect of noise uncertainty on the spectrum sensing.It outperforms maximum-minimum eigenvalue and blind detection with 4dB and 8dB respectively in signal-to-noise ratio,and has robustness to different modulated primary signal.http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0095-09/cognitive networkspectrum sensingcyclostationaryweightingadaptive threshold |
| spellingShingle | Hao-ye ZHANG Zhi-hua BAO Shi-bing ZHANG Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy Tongxin xuebao cognitive network spectrum sensing cyclostationary weighting adaptive threshold |
| title | Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| title_full | Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| title_fullStr | Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| title_full_unstemmed | Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| title_short | Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| title_sort | adaptive spectrum sensing algorithm based on cyclostationary spectrum energy |
| topic | cognitive network spectrum sensing cyclostationary weighting adaptive threshold |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0095-09/ |
| work_keys_str_mv | AT haoyezhang adaptivespectrumsensingalgorithmbasedoncyclostationaryspectrumenergy AT zhihuabao adaptivespectrumsensingalgorithmbasedoncyclostationaryspectrumenergy AT shibingzhang adaptivespectrumsensingalgorithmbasedoncyclostationaryspectrumenergy |