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投稿时间:2007-05-28
投稿时间:2007-05-28
中文摘要: 为了解决无线传感器网络低延迟、高吞吐量与有限的带宽之间的矛盾,提出了一种基于DMAC的动态多信道MAC协议。协议依据节点本地信息,将信道预先分配给中间节点,利用多信道和多个时隙排列实现了DMAC的多信道支持,并为DMAC协议增加了由根节点到子节点的通信方式。理论分析与NS 2仿真结果表明,支持多信道的DMAC协议在没有增加能耗的前提下,显著降低了数据传输中的延迟。
Abstract:A method of multi-channel support for DMAC in WSNs was propossed.The channel assignment was based on the local information of nodes. The multi-channel DMAC protocol implemented channel distribution before message collecting from source nodes to sink node and made broadcasting possible in DMAC. Analysis and simulation result showed that this multi-channel protocol decreases the latency without increasing energy consumption.
keywords: multi-channel low latency energy efficiency MAC WSN DMAC
文章编号:20080525 中图分类号: 文献标志码:
基金项目:总装备部武器装备预研基金资助项目(9140C110702);四川省应用基础研究资助项目(07JY029-078)
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引用文本:
李智,郑睿童,黄波.支持多信道的无线传感器网络DMAC协议[J].工程科学与技术,2008,40(5):135-141.
.An Improved DMAC in Multi-channel WSNs[J].Advanced Engineering Sciences,2008,40(5):135-141.
引用文本:
李智,郑睿童,黄波.支持多信道的无线传感器网络DMAC协议[J].工程科学与技术,2008,40(5):135-141.
.An Improved DMAC in Multi-channel WSNs[J].Advanced Engineering Sciences,2008,40(5):135-141.