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	认知无线Mesh网的多信道MAC协议; Multi-channel MAC Protocol for Cognitive Wireless Mesh Network
	喻明皓 ; 黄联芬
	2009
关键词	认知无线电 多信道 Mesh MAC cognitive radio multi-channel Mesh MAC
英文摘要	随着宽带无线通信业务的发展,无线频谱资源日益紧张.本文在认知无线电频率感知技术的基础上,将其应用于无线MESH网的多信道MAC协议(MMAC)中,提出了认知无线MESH网的多信道MAC协议(CWMn-MMAC).本协议通过增加认知用户对频谱的感知和针对多跳特点的分布式协商,将空闲的频谱动态地分配给非授权用户使用,可以有效提高频谱资源利用率.并通过仿真,研究了协议ATIM窗对吞吐量的影响和主用户空闲时的信道利用率.根据仿真结果可以看到,该协议通过单网卡可以实现较好的信道利用率.; With the development of broadband wireless communication,wireless spectrum resource gets scarce.Base on spectrum sensing of cognitive radio,the technology was applied in multi-channel MAC protocol of wireless Mesh network,and propose multi-channel MAC protocol for cognitive wireless Mesh network(CWMN-MMAC) in this paper.By adding spectrum sensing of cognitive users and distributed negotiation based on multi-hop characteristic,it can allocate unused spectrum to unlicensed user,and improve utilization of spectrum resource effectively.Through simulation,the influence of ATIM window to the throughput and the channel utilization when licensed user is absent are analyzed.From the simulation result,this protocol can realize good channel utilization with one network card.
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/122511]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	喻明皓,黄联芬. 认知无线Mesh网的多信道MAC协议, Multi-channel MAC Protocol for Cognitive Wireless Mesh Network[J],2009.
APA	喻明皓,&黄联芬.(2009).认知无线Mesh网的多信道MAC协议..
MLA	喻明皓,et al."认知无线Mesh网的多信道MAC协议".(2009).

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