| 基于跳预约多址接入的认知无线电MAC协议 |
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| 引用本文： | 魏飞. 基于跳预约多址接入的认知无线电MAC协议[J]. 电力系统通信, 2007, 28(6): 31-34 |
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| 作者姓名： | 魏飞 |
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| 作者单位： | 南京邮电大学,江苏,南京,210003 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 认知无线电是一种能使无线器件感知本地空闲频谱的存在,自适应地使用这些空闲频谱进行通信的一种新兴技术。在一个由认知无线电节点组成的多跳网络中,由于空闲频谱随地点与时间动态变化,使得各节点可获得的空闲信道的数目和属性不仅存在差异,且不断变化,造成认知无线电的MAC设计变得相当困难。在文章中,基于跳预约多址接入技术提出一种动态信道的跳预约多址接入协议,在不需要公共信道的情况下,解决了信道有效接入与退让问题。
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| 关 键 词： | 认知无线电 跳预约多址接入 媒体接入控制协议 |
| 文章编号： | 1005-7641（2007）06-0031-04 |
| 修稿时间： | 2007-01-052007-02-15 |
HRMA-based cognitive radio MAC protocol |
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| WEI Fei. HRMA-based cognitive radio MAC protocol[J]. Telecommunications for Electric Power System, 2007, 28(6): 31-34 |
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| Authors: | WEI Fei |
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| Affiliation: | Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | Cognitive radio is a new technology that can sense the availability of local spare spectrum and uses it adaptively to communicate with each other.In a multi-hop network consisted of cognitive radio nodes,the number and attribute of available spare channels of each node is not only different but also changes due to the dynamic change of spare spectrum according to time and location.All of these make the design of the Media Access Control(MAC) protocol difficult for cognitive radio.This paper presents a Dynamic Channel-Hop Reservation Multiple Access(DC-HRMA) protocol based on the original HRMA.It solves the problem affecting the channel access and quitting no need for common channels. |
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| Keywords: | cognitive radio HRMA MAC protocol |
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