Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks
The multiuser MIMO based linear cooperative spectrum sensing problem was investigated in cognitive radio system to improve the reliability of spectrum sensing.Both the local spectrum detecting strategy and global spectrum detecting strategy for multiuser MIMO based linear cooperative spectrum sensin...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2012-02-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)02-0045-08/ |
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| _version_ | 1841539938488680448 |
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| author | Yong-qiang HEI Xiao-hui LI Wen-tao LI |
| author_facet | Yong-qiang HEI Xiao-hui LI Wen-tao LI |
| author_sort | Yong-qiang HEI |
| collection | DOAJ |
| description | The multiuser MIMO based linear cooperative spectrum sensing problem was investigated in cognitive radio system to improve the reliability of spectrum sensing.Both the local spectrum detecting strategy and global spectrum detecting strategy for multiuser MIMO based linear cooperative spectrum sensing system were derived.Then the optimization model that the different weights assigned on the receive signals of each user at the fusion center for global decision were optimized to maximize the detection probability given a targeted probability of false alarm is established.Furthermore,genetic algorithm (GA) was introduced to find the optimal weight vector of the above-mentioned cooperative spectrum sensing problem,with the purpose of reducing the sensing time in the spectrum sensing process.The simulation results show that,the reliability of spectrum sensing in cooperative spectrum sensing system can be efficiently enhanced with multiple antennas.Besides,the proposed GA method is efficient and stable,and achieves better detection performance when compared with the existing methods. |
| format | Article |
| id | doaj-art-48c2f95fcefd4d8da75fdfe36355592f |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-02-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-48c2f95fcefd4d8da75fdfe36355592f2025-01-14T06:31:08ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-02-0133455259660059Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networksYong-qiang HEIXiao-hui LIWen-tao LIThe multiuser MIMO based linear cooperative spectrum sensing problem was investigated in cognitive radio system to improve the reliability of spectrum sensing.Both the local spectrum detecting strategy and global spectrum detecting strategy for multiuser MIMO based linear cooperative spectrum sensing system were derived.Then the optimization model that the different weights assigned on the receive signals of each user at the fusion center for global decision were optimized to maximize the detection probability given a targeted probability of false alarm is established.Furthermore,genetic algorithm (GA) was introduced to find the optimal weight vector of the above-mentioned cooperative spectrum sensing problem,with the purpose of reducing the sensing time in the spectrum sensing process.The simulation results show that,the reliability of spectrum sensing in cooperative spectrum sensing system can be efficiently enhanced with multiple antennas.Besides,the proposed GA method is efficient and stable,and achieves better detection performance when compared with the existing methods.http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)02-0045-08/MIMOcognitive radiocooperationspectrum sensing |
| spellingShingle | Yong-qiang HEI Xiao-hui LI Wen-tao LI Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks Tongxin xuebao MIMO cognitive radio cooperation spectrum sensing |
| title | Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks |
| title_full | Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks |
| title_fullStr | Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks |
| title_full_unstemmed | Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks |
| title_short | Research on the multiuser MIMO linear cooperative spectrum sensing in cognitive radio networks |
| title_sort | research on the multiuser mimo linear cooperative spectrum sensing in cognitive radio networks |
| topic | MIMO cognitive radio cooperation spectrum sensing |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)02-0045-08/ |
| work_keys_str_mv | AT yongqianghei researchonthemultiusermimolinearcooperativespectrumsensingincognitiveradionetworks AT xiaohuili researchonthemultiusermimolinearcooperativespectrumsensingincognitiveradionetworks AT wentaoli researchonthemultiusermimolinearcooperativespectrumsensingincognitiveradionetworks |