| 一种WLAN中认知无线电MAC协议的改进 |
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| 引用本文： | 董楠,陆元亮,董灿.一种WLAN中认知无线电MAC协议的改进[J].电视技术,2011,35(7):85-87. |
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| 作者姓名： | 董楠 陆元亮 董灿 |
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| 作者单位： | 中国移动通信集团广东有限公司云浮分公司;重庆邮电大学移动通信重点实验室; |
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| 摘 要： | 针对认知无线电网络(Cognitive Radio Networks,CRN)特性,提出一种认知无线电MAC协议,该协议通过在认知节点对之间选择最优的信道进行数据传输,当最优信道被主用户占用以后,自动切换到次优信道进行通信,以提高通信成功的概率,达到增大吞吐量的目的。性能分析表明,该MAC协议相对IEEE802.11MAC协议,在吞吐量方面有一定的提高。
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| 关 键 词： | 认知无线电 MAC 无线局域网 |
Improvement of Cognitive Radio MAC Protocol in WLAN |
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| DONG Nan,LU Yuanliang,DONG Can.Improvement of Cognitive Radio MAC Protocol in WLAN[J].Tv Engineering,2011,35(7):85-87. |
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| Authors: | DONG Nan LU Yuanliang DONG Can |
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| Affiliation: | DONG Nan1,LU Yuanliang1,DONG Can2 (1. Yunfu Branch in Guangdong Company Limited of China Mobile Limited,Guangdong Yunfu 527300,China,2. Key Lab of Mobile Communications Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | In this paper, a cognitive radio MAC protocol (CMAC) aiming at the characteristics of Cognitive Radio Networks, (CRN) is presented. This protocol can improve the success probability of communication and throughput by selecting the optimal channel between the cognitive nodes for data transmission and handing off to the sub-optimal channel automatically when the optimal channel is occupied by the primary user. Performance analysis shows that CMAC outperforms IEEE802.11 MAC in terms of throughput. |
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| Keywords: | cognitive radio MAC WLAN |
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