| 认知无线电与WLAN的融合技术 |
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| 引用本文： | 陈东,李建东,李维英. 认知无线电与WLAN的融合技术[J]. 中兴通讯技术, 2007, 13(3): 15-18 |
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| 作者姓名： | 陈东 李建东 李维英 |
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| 作者单位： | 西安电子科技大学综合业务网国家重点实验室 陕西西安710071 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目 |
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| 摘 要： | 随着无线局域网(WLAN)的迅速普及,有限的可用频谱资源日益紧张。认知无线电(CR)技术具有动态重用空闲频谱资源的能力,可以有效提高频谱利用率,得到了无线通信行业的关注。通过将CR技术与无线局域网相融合,可以为无线局域网提供更为灵活的通信,扩展无线局域网的工作频段。IEEE 802.11y无线局域网标准的制定进一步推动了CR技术的应用。CR技术与无线局域网融合的过程中,还需要完善包括频谱感知、频谱资源共享和分配、动态频率选择和传输功率控制等技术。
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| 关 键 词： | 无线局域网 认知无线电 频谱资源 |
| 文章编号： | 1009-6868（2007）03-0015-04 |
| 收稿时间： | 2007-03-21 |
| 修稿时间： | 2007-03-21 |
Combination of Cognitive Radio and WLAN |
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| CHEN Dong,LI Jian-dong,LI Wei-ying. Combination of Cognitive Radio and WLAN[J]. ZTE Communications, 2007, 13(3): 15-18 |
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| Authors: | CHEN Dong LI Jian-dong LI Wei-ying |
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| Abstract: | With the rapid development of Wireless Local Area Network (WLAN), the valid spectrum resources are becoming more and more limited over time. With the ability of dynamically reusing the idle spectrum resources and improving the efficiency of spectrum usage, Cognitive Radio (CR) has been paid many attentions. The combination of CR technology and WLAN will provide more flexible communications and extend the valid frequency bands for WLAN. The layout of new WLAN standard IEEE 802.11y will further drive the application of CR. During the combination process, some crucial technologies should be improved, involving spectrum sensing, spectrum resource sharing and allocation, dynamic frequency selection and transmit power control technology. |
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| Keywords: | IEEE 802.11y |
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