| 采用最小最大准则的协作频谱感知融合 |
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| 引用本文： | 赵东峰, 周贤伟, 程曾伟, 杜茹浩. 采用最小最大准则的协作频谱感知融合[J]. 电波科学学报, 2011, 26(5): 923-926. |
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| 作者姓名： | 赵东峰 周贤伟 程曾伟 杜茹浩 |
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| 作者单位： | 北京科技大学计算机与通信工程学院, 北京 100083 |
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| 基金项目： | 国家自然科学基金项目(61003250);教育部科学技术研究重大项目(311007);国家博士点基金项目(20090006110014) |
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| 摘 要： | 给出了采用最小最大准则实现认知无线电系统协作频谱感知融合的方法,以在主用户出现在授权频段的先验概率未知的情况下利用概率计算实现认知无线电系统的协作频谱感知融合。该方法可实现同步和异步感知信息的融合。仿真验证了算法的性能,并与采用估计主用户出现在授权频段的先验概率并进行基于概率的感知融合算法性能进行了比较。结果表明:给出的算法可有效实现主用户出现在授权频段的先验概率未知时的协作频谱感知融合。
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| 关 键 词： | 认知无线电 协作频谱感知 最小最大准则 |
| 收稿时间： | 2010-10-27 |
Combination based on the MiniMax rule for cooperative spectrum sensing |
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| ZHAO Dong-feng, ZHOU Xian-wei, CHENG Zeng-wei, DU Ru-hao. Combination based on the MiniMax rule for cooperative spectrum sensing[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2011, 26(5): 923-926. |
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| Authors: | ZHAO Dong-feng ZHOU Xian-wei CHENG Zeng-wei DU Ru-hao |
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| Affiliation: | School of Computer and Communication Engineering, Univesity of Science and Technology of Beijing, Beijing 100083, China |
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| Abstract: | To implement the probability-based combination of spectrum sensing information collected from cooperative users of a cognitive radio system when the prior probability of the presence of the primary user in the licensed band is unkown,a combination scheme adopting the MiniMax rule is proposed.The proposed scheme enables combination of both synchronous and asynchronous sensing information.The performance of the proposed scheme is simulated and compared with the performance of the probability-based combination untilizing the estimation of the prior probability of the presence of the primary user in the licensed band.Simulation results prove the effectiveness of this scheme. |
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| Keywords: | cognitive radio cooperative spectrum sensing Minimax rule |
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