| 感知无线电中的频谱检测技术 |
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| 引用本文： | 何丽华,谢显中,董雪涛,周通.感知无线电中的频谱检测技术[J].通信技术,2007(5):9-11. |
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| 作者姓名： | 何丽华 谢显中 董雪涛 周通 |
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| 作者单位： | 1. 中国电子科技集团公司第36研究所通信系统信息控制技术国防重点实验室,浙江,嘉兴,314033;重庆邮电大学移动通信信息产业部重点实验室,重庆,400065
2. 重庆邮电大学移动通信信息产业部重点实验室,重庆,400065 |
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| 基金项目： | 国家自然科学基金;通信系统信息控制技术国防重点实验室基金 |
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| 摘 要： | 感知无线电可以自动感知外界的无线环境并能调整系统参数以适应环境的变化。频谱检测是感知无线电的关键技术之一，要求感知用户可靠、快速地检测频谱空洞。文中按照主用户发射端检测和主用户接收端检测，对当前的主要频谱检测算法进行了分类，并对频谱检测算法进行了讨论和对比研究，给出了在IEEE802．22和频谱池结构中的频谱检测的具体应用。
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| 关 键 词： | 感知无线电 频谱空洞 频谱检测 频谱池 |
| 文章编号： | 1002-0802（2007）05-009-03 |
| 修稿时间： | 2007-02-13 |
Technology of Spectrum Sensing in the Cognitive Radio |
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| HE Lihua,XIE Xianzhong,DONG Xuetao,ZHOU Tong.Technology of Spectrum Sensing in the Cognitive Radio[J].Communications Technology,2007(5):9-11. |
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| Authors: | HE Lihua XIE Xianzhong DONG Xuetao ZHOU Tong |
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| Affiliation: | 1. National Defense Key Laboratory of Telecommunication System Information and Control Technology , NO, 36 Institute of CETC, Jiaxing 314033, China; 2.MII Key Lab of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| Abstract: | Cognitive radio has both the ability to sense the spectral environment and the flexibility to adapt transmission parameters. Spectrum sensing technology is a key component of cognitive radio whose function is to find out the empty frequency bands quickly and reliably. This paper classifies the mainly spectrum sensing algorithms according to primary transmitter detection and primary receiver detection and makes contrast of them. Finally, the detailed spectrum sensing process in the environment of IEEE802.22 and spectrum pool is presented. |
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| Keywords: | IEEE802 22 |
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