| 无线传感器网络中一种竞争窗口自适应MAC协议 |
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| 引用本文： | 李运鹏,徐昌彪,刘琳.无线传感器网络中一种竞争窗口自适应MAC协议[J].传感器与微系统,2010,29(1). |
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| 作者姓名： | 李运鹏 徐昌彪 刘琳 |
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| 作者单位： | 重庆邮电大学通信与信息工程学院,重庆,400065 |
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| 基金项目： | 重庆市科技攻关计划资助项目(CSTC,2008AB2023) |
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| 摘 要： | 媒体访问控制(MAC)协议是保证无线传感器网络(WSNs)高效通信的关键网络协议之一。MAC层协议设计的是否合理将严重影响网络的性能。介绍了现有MAC协议分类和主要MAC协议。分析了WSNs中典型的S-MAC协议,针对S-MAC协议在载波侦听时采用固定竞争窗口的弊端,提出了一种新型的能够根据流量变化对竞争窗口进行动态调整的新的MAC协议ASMAC,利用NS2对ASMAC进行了仿真,证明了新的ASMAC不仅能够显著地提高吞吐量,降低时延,还能有效提高能量效率,在提高网络性能的同时达到节能的目的。
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| 关 键 词： | 无线传感器网络 媒体访问控制协议 竞争窗口 自适应 |
Contention window adaptive MAC protocol for wireless sensor networks |
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| LI Yun-peng,XU Chang-biao,LIU Lin.Contention window adaptive MAC protocol for wireless sensor networks[J].Transducer and Microsystem Technology,2010,29(1). |
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| Authors: | LI Yun-peng XU Chang-biao LIU Lin |
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| Affiliation: | School of Communication and Information Engineering;Chongqing University of Post and Telecommunications;Chongqing 400065;China |
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| Abstract: | Media access control(MAC)protocol is one of the key network protocol to ensure that wireless sensor networks(WSNs)high-performance communications.MAC layer protocol design is reasonable or not will seriously affect the network performance.Existing MAC protocal classification and the main MAC protocals are also introduced.The typical S-MAC protocol in wireless sensor networks is analyzed.Aimed to the defects of the use of fixed window when S-MAC carrier sense,a new MAC protocol,ASMAC,which can dynamic adjust... |
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| Keywords: | wireless sensor networks(WSNs) media access control(MAC)protocol contention window adaptive |
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