| 认知无线电网络高能效协作频谱感知技术 |
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| 引用本文： | 彭涛,郭晨,王文博.认知无线电网络高能效协作频谱感知技术[J].北京邮电大学学报,2010,33(4):93-96. |
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| 作者姓名： | 彭涛 郭晨 王文博 |
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| 作者单位： | 泛网无线通信教育部重点实验室(北京邮电大学),北京,100876;泛网无线通信教育部重点实验室(北京邮电大学),北京,100876;泛网无线通信教育部重点实验室(北京邮电大学),北京,100876 |
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| 基金项目： | 国家重点基础研究发展计划项目，Nokia大学合作项目 |
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| 摘 要： | 提出了一种协作频谱感知方式. 通过对本地观测向量和预设门限的比较，认知用户可以根据本 地感知的可靠性决定是否向基站发送本地判决结果. 在不同控制信道条件下，采用计数准则 和Neyman Pearson准则对所提出的协作频谱感知方式进行了感知性能研究. 理论分析和仿 真结果表明，这种协作频谱感知方式在保证检测性能的基础上，有效减少了协作通信开销， 提升了感知能效.
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| 关 键 词： | 认知无线电网络 协作频谱感知 计数准则 Neyman-Pearson准则 |
| 收稿时间： | 2009-09-23 |
Energy-Efficient Cooperative Spectrum Sensing in Cognitive Radio Networks |
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| PENG Tao,GUO Chen,WANG Wen-bo.Energy-Efficient Cooperative Spectrum Sensing in Cognitive Radio Networks[J].Journal of Beijing University of Posts and Telecommunications,2010,33(4):93-96. |
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| Authors: | PENG Tao GUO Chen WANG Wen-bo |
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| Affiliation: | PENG Tao,GUO Chen,WANG Wen-bo ( Key Laboratory of Universal Wireless Communication ( Beijing University of Posts and Telecommunications),Ministry of Education,Beijing 100876,China) |
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| Abstract: | A new cooperative spectrum sensing scheme is proposed to reduce the cooperation overhead. After comparing the local observation with the threshold,the user could decide,whether or not,to transmit local decision to the base station. Two fusion rules,counting rule and Neyman-Pearson rule,are investigated for the proposed sensing scheme. Analysis and simulation show that the proposed scheme guarantees sensing reliability without any performance loss and reduces the communication overhead significantly to achie... |
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| Keywords: | cognitive radio network cooperative spectrum sensing counting rule Neyman-Pearson rule |
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