| 基于天线选择的多天线频谱感知技术 |
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| 引用本文： | 吴迎笑,朱琦.基于天线选择的多天线频谱感知技术[J].南京邮电大学学报(自然科学版),2009,29(2). |
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| 作者姓名： | 吴迎笑 朱琦 |
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| 作者单位： | 1. 南京邮电大学,信号处理与传输研究院,江苏,南京,210003
2. 南京邮电大学,江苏省无线通信重点实验室,江苏,南京,210003;东南大学,移动通信国家重点实验室,江苏,南京,210096 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，东南大学移动通信国家重点实验室开放研究基金 |
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| 摘 要： | 为了保护主用户系统不受认知用户的影响,提高频谱检测的可靠性,提出了一种新的基于天线选择和能量感知的频谱检测算法.该算法利用认知用户多个接收天线的感知信息,根据认知用户与主用户之间信道的差异,充分利用多天线的空间分集,选择部分使得检测概率最大化的天线进行合作检测.仿真结果表明,基于天线选择和能量感知的多天线频谱检测可有效地提高感知数据可靠性,感知数据的检测概率显著提高.
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| 关 键 词： | 认知无线电 频谱感知 天线选择 检测概率 |
Multiantenna Spectrum Sensing Based on Antenna Selection |
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| WU Ying-xiao,ZHU Qi.Multiantenna Spectrum Sensing Based on Antenna Selection[J].Journal of Nanjing University of Posts and Telecommunications,2009,29(2). |
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| Authors: | WU Ying-xiao ZHU Qi |
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| Institution: | WU Ying-xiao1,ZHU Qi2,31.Institute of Signal Processing , Transmission,Nanjing University of Posts , Telecommunications,Nanjing 210003,China2.Jiangsu Key Lab of Wireless Communications,China3.National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China |
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| Abstract: | To protect the primary user and improve the credibility of spectrum detection,a novel spectrum sensing algorithm based on antenna selection and energy detection was proposed.Utilizing the spectrum sensing information form multiple receiver antenna of cognitive users and using the space diversity of multiantenna based on the channel difference between cognitive and primary user,the novel algorithm selects part of the antenna which maximizes he detection probability to cooperatively detect.Simulation results ... |
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| Keywords: | cognitive radio spectrum sensing antenna selection detection probability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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