Cooperative sensing method considering malicious nodes in cognitive radio networks
Based on a more practical cognitive radio network with malicious users,the spectrum sharing network model based on the cooperative spectrum sensing was studied that the secondary user can dynamically adjust its transmit power based on cooperative sensing results.To avoid significant reduction in per...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015119/ |
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| _version_ | 1841539633703288832 |
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| author | Xiao-gang QI Sheng-yu ZHENG Li-fang LIU Hui-fang WANG |
| author_facet | Xiao-gang QI Sheng-yu ZHENG Li-fang LIU Hui-fang WANG |
| author_sort | Xiao-gang QI |
| collection | DOAJ |
| description | Based on a more practical cognitive radio network with malicious users,the spectrum sharing network model based on the cooperative spectrum sensing was studied that the secondary user can dynamically adjust its transmit power based on cooperative sensing results.To avoid significant reduction in performance of spectrum sensing system caused by malicious nodes,it is aimed to study how to improve the performance of cooperative sensing.By introducing the convex optimization problem,the secondary network throughput is maximized under the certain detection probability conditions and the corresponding power constraints.Simulation results show that whether or not there are malicious nodes,the algorithm is efficient in calculating optimal sensing time and the optimal transmit powers,and the secondary network throughput is increased when the maximum interference power limits and the maximum transmit power restrictions are decreased. |
| format | Article |
| id | doaj-art-14c3e958ca0f439ca1bb0b4ae9ee884f |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-14c3e958ca0f439ca1bb0b4ae9ee884f2025-01-14T06:46:29ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-06-0136223059693350Cooperative sensing method considering malicious nodes in cognitive radio networksXiao-gang QISheng-yu ZHENGLi-fang LIUHui-fang WANGBased on a more practical cognitive radio network with malicious users,the spectrum sharing network model based on the cooperative spectrum sensing was studied that the secondary user can dynamically adjust its transmit power based on cooperative sensing results.To avoid significant reduction in performance of spectrum sensing system caused by malicious nodes,it is aimed to study how to improve the performance of cooperative sensing.By introducing the convex optimization problem,the secondary network throughput is maximized under the certain detection probability conditions and the corresponding power constraints.Simulation results show that whether or not there are malicious nodes,the algorithm is efficient in calculating optimal sensing time and the optimal transmit powers,and the secondary network throughput is increased when the maximum interference power limits and the maximum transmit power restrictions are decreased.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015119/cognitive radiomalicious nodecooperation sensingspectrum sharingpower allocationconvex optimization |
| spellingShingle | Xiao-gang QI Sheng-yu ZHENG Li-fang LIU Hui-fang WANG Cooperative sensing method considering malicious nodes in cognitive radio networks Tongxin xuebao cognitive radio malicious node cooperation sensing spectrum sharing power allocation convex optimization |
| title | Cooperative sensing method considering malicious nodes in cognitive radio networks |
| title_full | Cooperative sensing method considering malicious nodes in cognitive radio networks |
| title_fullStr | Cooperative sensing method considering malicious nodes in cognitive radio networks |
| title_full_unstemmed | Cooperative sensing method considering malicious nodes in cognitive radio networks |
| title_short | Cooperative sensing method considering malicious nodes in cognitive radio networks |
| title_sort | cooperative sensing method considering malicious nodes in cognitive radio networks |
| topic | cognitive radio malicious node cooperation sensing spectrum sharing power allocation convex optimization |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015119/ |
| work_keys_str_mv | AT xiaogangqi cooperativesensingmethodconsideringmaliciousnodesincognitiveradionetworks AT shengyuzheng cooperativesensingmethodconsideringmaliciousnodesincognitiveradionetworks AT lifangliu cooperativesensingmethodconsideringmaliciousnodesincognitiveradionetworks AT huifangwang cooperativesensingmethodconsideringmaliciousnodesincognitiveradionetworks |