| 认知无线电中的频谱接入技术 |
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| 引用本文： | 卢振. 认知无线电中的频谱接入技术[J]. 信息技术, 2009, 0(4) |
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| 作者姓名： | 卢振 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,南京,210003 |
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| 摘 要： | 认知无线电是一种基于软件无线电的智能通信系统,它能够认知周围环境,并能通过一定的方法相应地改变某些工作参数来实时地适应环境,从而达到提高频谱利用率、缓解频谱资源紧张的目的.授权频段的频谱利用问题是认知无线电实现的关键技术之一.研究了授权频段的两种频谱利用方法:动态频谱接入和基于动态频谱接入模型之一的机会频谱接入.
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| 关 键 词： | 认知无线电 频谱接入 动态频谱接入 机会频谱接入 授权频段 |
Technology of spectrum access in the cognitive radio |
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| LU Zhen. Technology of spectrum access in the cognitive radio[J]. Information Technology, 2009, 0(4) |
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| Authors: | LU Zhen |
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| Affiliation: | School of Communication and Information Engineering;Nanjing University of Posts and Telecommunications;Nanjing 210003;China |
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| Abstract: | Cognitive radio,built on a software-defined radio,is an intelligent wireless communication system.It is aware of its environment,and by some method it can correspondingly change some working parameters to adapt to the environment in real time.Its objectives are to efficiently utilize the radio spectrum and solve the problem of radio electromagnetic spectrum scarcity.The use of spectrum in authorized spectrum band is one of the key technologies of realizing cognitive radio.In this paper,dynamic spectrum acce... |
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| Keywords: | cognitive radio spectrum access dynamic spectrum access opportunistic spectrum access authorized spectrum band |
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