| 认知无线电网络中控制信道预约的MAC协议 |
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| 引用本文： | 张立,郑国莘,贾东立,朱亚洲.认知无线电网络中控制信道预约的MAC协议[J].北京邮电大学学报,2010,33(4):79-82. |
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| 作者姓名： | 张立 郑国莘 贾东立 朱亚洲 |
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| 作者单位： | 上海大学,通信与信息工程学院,上海,200072;上海大学,通信与信息工程学院,上海,200072;上海大学,通信与信息工程学院,上海,200072;上海大学,通信与信息工程学院,上海,200072 |
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| 摘 要： | 提出了一种多信道自适应媒体接入控制（MAC）协议，该协议引入了竞争控制信道和预留控制信道. 认知用户在接入过程中，首先在竞争控制信道上预约、预留控制信道子帧，然后再通过预留控制信道基于请求带宽预约数据信道，同时认知用户通过维护信道状态表来分配和回收信道资源. 仿真结果表明，该协议可有效地调度多用户多信道接入，具有良好的可扩展性和端到端吞吐性能，可大大降低冲突和拥塞概率及端到端时延.
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| 关 键 词： | 认知无线电网络 控制信道预约 媒质接入控制协议 |
| 收稿时间： | 2009-10-20 |
A Control Channel Reserving Based MAC Protocol for Cognitive Radio Networks |
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| ZHANG Li,ZHENG Guo-xin,JIA Dong-li,ZHU Ya-zhou.A Control Channel Reserving Based MAC Protocol for Cognitive Radio Networks[J].Journal of Beijing University of Posts and Telecommunications,2010,33(4):79-82. |
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| Authors: | ZHANG Li ZHENG Guo-xin JIA Dong-li ZHU Ya-zhou |
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| Affiliation: | ZHANG Li,ZHENG Guo-xin,JIA Dong-li,ZHU Ya-zhou ( School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China) |
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| Abstract: | A multi-channel adaptive media access control ( MAC) protocol based on the concepts of competing control channel ( CCC) and reserving control channel ( RCC) is presented. In order to access wireless channels,cognitive users reserve the sub-frame of RCC through CCC that obligates the access opportunities for different traffic. The users apply the required bandwidth using RCC based data channel. The channel is distributed and recycled by updating a channel state table. Simulations show that the proposed proto... |
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| Keywords: | cognitive radio network channel reserving media access control protocol |
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