Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection
In the cognitive radio system,the optimal relay would be selected from the n available ones to obtain the best sensing performance.However,in actual systems,the secondary or even the more general N<sup>th</sup>best relay may be selected for various reasons.Therefore,the cooperative spect...
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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)11-0176-07/ |
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| author | Xiao-ge ZHANG Shi-bing ZHANG Gong-an QIU |
| author_facet | Xiao-ge ZHANG Shi-bing ZHANG Gong-an QIU |
| author_sort | Xiao-ge ZHANG |
| collection | DOAJ |
| description | In the cognitive radio system,the optimal relay would be selected from the n available ones to obtain the best sensing performance.However,in actual systems,the secondary or even the more general N<sup>th</sup>best relay may be selected for various reasons.Therefore,the cooperative spectrum sensing based on the N<sup>th</sup>best relay selection was proposed.The closed-form expression of the detection probability was derived in Rayleigh fading channels.Numerical results show that the detection probability declines continuously even below the one of the arbitrary selection as N increases,and that the one based on the optimal or suboptimal selection increases obviously but the one based on the worst or near worst selection decreases slightly as n increases. |
| format | Article |
| id | doaj-art-dce44f87b38b4424900168047fcfec84 |
| 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-dce44f87b38b4424900168047fcfec842025-01-14T06:30:47ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-11-013217618259659131Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selectionXiao-ge ZHANGShi-bing ZHANGGong-an QIUIn the cognitive radio system,the optimal relay would be selected from the n available ones to obtain the best sensing performance.However,in actual systems,the secondary or even the more general N<sup>th</sup>best relay may be selected for various reasons.Therefore,the cooperative spectrum sensing based on the N<sup>th</sup>best relay selection was proposed.The closed-form expression of the detection probability was derived in Rayleigh fading channels.Numerical results show that the detection probability declines continuously even below the one of the arbitrary selection as N increases,and that the one based on the optimal or suboptimal selection increases obviously but the one based on the worst or near worst selection decreases slightly as n increases.http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0176-07/cognitive radiocooperative spectrum sensingmultiuser diversitydetection probability |
| spellingShingle | Xiao-ge ZHANG Shi-bing ZHANG Gong-an QIU Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection Tongxin xuebao cognitive radio cooperative spectrum sensing multiuser diversity detection probability |
| title | Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection |
| title_full | Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection |
| title_fullStr | Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection |
| title_full_unstemmed | Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection |
| title_short | Detection probability analysis of cooperative spectrum sensing with the N<sup>th</sup>best relay selection |
| title_sort | detection probability analysis of cooperative spectrum sensing with the n sup th sup best relay selection |
| topic | cognitive radio cooperative spectrum sensing multiuser diversity detection probability |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0176-07/ |
| work_keys_str_mv | AT xiaogezhang detectionprobabilityanalysisofcooperativespectrumsensingwiththensupthsupbestrelayselection AT shibingzhang detectionprobabilityanalysisofcooperativespectrumsensingwiththensupthsupbestrelayselection AT gonganqiu detectionprobabilityanalysisofcooperativespectrumsensingwiththensupthsupbestrelayselection |