| 认知无线电线性自信号消除带内频谱感知方法 |
| |
| 引用本文： | 刘 超,孙雁飞. 认知无线电线性自信号消除带内频谱感知方法[J]. 电讯技术, 2011, 51(8): 96-100 |
| |
| 作者姓名： | 刘 超 孙雁飞 |
| |
| 作者单位： | 南京邮电大学 信息网络技术研究所，南京 210003；江苏大学 电气信息工程学院，江苏 镇江 212013;南京邮电大学 信息网络技术研究所，南京 210003 |
| |
| 基金项目： | 国家自然科学基金青年科学基金资助项目（61003237）；江苏省高校自然科学研究项目（10KJB510018) |
| |
| 摘 要： | 利用无线衰落信道AR模型,提出了一种不需要静默期的基于线性自信号消除的认知无线电主用户信号检测方法.该方法无需为避免静默期而频繁地中断通信,提高了通信效率和服务质量.仿真结果表明,该算法在多普勒频移较大时优于已有的无静默期带内频谱感知方法,在满足IEEE 802.22无线区域网主用户信号检测需求的同时,增强了系统频谱感...
|
| 关 键 词： | 认知无线电 带内感知 静默期 自信号消除 |
In-band Spectrum Sensing for Cognitive Radio by Linear Self-signal Elimination |
| |
| LIU Chao and SUN Yan-fei. In-band Spectrum Sensing for Cognitive Radio by Linear Self-signal Elimination[J]. Telecommunication Engineering, 2011, 51(8): 96-100 |
| |
| Authors: | LIU Chao and SUN Yan-fei |
| |
| Affiliation: | 1(1.Institute of Information Network Technology,Nanjing University of Posts and Telecommunications,Nanjing212003,China;2.School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China) |
| |
| Abstract: | An in band spectrum sensing method is proposed based on linear self signal elimination for cognitive radio(CR) by using the AR model of wireless fading channel. With this method,it is unnecessary to interrupt the communication to avoid the usage of quiet period and guarantee the performance of the network. The simulation results show that the proposed method is better than the existing in band spectrum sensing methods without quiet period when the Doppler frequency shift is large. The algorithm achieves an acceptable detection performance for IEEE802.22 system and improves the performance of spectrum sensing. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《电讯技术》浏览原始摘要信息 |
|
点击此处可从《电讯技术》下载全文 |
