| 改进的证据理论在合作频谱感知中的应用 |
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| 引用本文： | 李一兵,张宗志,高振国.改进的证据理论在合作频谱感知中的应用[J].计算机工程与设计,2011,32(10):3292-3295. |
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| 作者姓名： | 李一兵 张宗志 高振国 |
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| 作者单位： | 1. 哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨,150001
2. 哈尔滨工程大学自动化学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目(60703090); 哈尔滨市科技创新人才研究专项基金项目(2008RFQXG025) |
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| 摘 要： | 为了能够在认知无线电网络中有效、准确地检测出授权用户,提出了基于改进的证据理论的合作频谱感知方案设计方法.根据各个次用户对授权用户进行多次本地检测得出的时域DS融合结果,设计并改进融合顺序和融合结构,将多个时域DS融合结果送到融合中心进行空域DS融合,得到最终判决.在此基础上,给出了融合顺序、融合结构的改变对算法性能的...
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| 关 键 词： | 证据理论 认知无线电 频谱感知 认知系统 频谱分析 |
Improved DS evidence theory application in cooperative spectrum sensing |
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| LI Yi-bing,ZHANG Zong-zhi,GAO Zhen-guo.Improved DS evidence theory application in cooperative spectrum sensing[J].Computer Engineering and Design,2011,32(10):3292-3295. |
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| Authors: | LI Yi-bing ZHANG Zong-zhi GAO Zhen-guo |
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| Affiliation: | LI Yi-bing1,ZHANG Zong-zhi1,GAO Zhen-guo2(1.College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China,2.College of Automation,China) |
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| Abstract: | To efficiently and correctly detect the licenced user in cognitive radio networks,a novel method based on improved DS evidence theory is proposed.The sampling times is increased to get the theories several times from cognitive users,and the theories is fused in time domain.By means of designing and improving the structure and order of fusion,the fusion center fused the first fusion results in space domain,and get the final decision.It discussed in detail the influence of the fusion order and the fusion stru... |
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| Keywords: | evidence theory cognitive radio spectrum sensing cognitive systems spectrum analysis |
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