| 基于竞争与TDMA的低时延无线传感器网络MAC协议 |
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| 引用本文： | 杜敏,黄剑,石为人,李洪兵.基于竞争与TDMA的低时延无线传感器网络MAC协议[J].传感器与微系统,2014,33(10):111-114. |
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| 作者姓名： | 杜敏 黄剑 石为人 李洪兵 |
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| 作者单位： | 重庆大学自动化学院,重庆,400030 |
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| 基金项目： | 国家科技支撑计划资助项目，重庆市科技攻关项目 |
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| 摘 要： | 针对经典无线传感器网络（WSNs） S-MAC协议的累积睡眠延迟问题,提出了一种基于竞争与时分复用（TDMA）方式混合的低时延LH-MAC协议.LH-MAC根据包的传输跳数,提供不同优先级的接入服务,使已完成多跳传输的包以更大的概率接入信道,实现较远节点的低时延传输目标.仿真比较S-MAC与LH-MAC的平均延迟和能耗,表明LH-MAC在保持能量高效前提下,有效降低了端到端时延.
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| 关 键 词： | 无线传感器网络 混合MAC 低时延 优先级 S-MAC |
Low time delay WSNs MAC protocol based on competition and TDMA |
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| DU Min,HUANG Jian,SHI Wei-ren,LI Hong-bing.Low time delay WSNs MAC protocol based on competition and TDMA[J].Transducer and Microsystem Technology,2014,33(10):111-114. |
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| Authors: | DU Min HUANG Jian SHI Wei-ren LI Hong-bing |
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| Affiliation: | ( College of Automation, Chongqing University, Chongqing 400030, China) |
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| Abstract: | Aiming at accumulative latency problem of classic S-MAC protocol, propose LH-MAC protocol, a low time delay hybrid MAC protocol based on competition and TDMA for wireless sensor networks（WSNs）. According to number of hops, LH-MAC provides service with different priorities, so that the packets which have achieved multi-hop transsion have more probability to access to the channel and to realize low time delay transmission of remote node. Comparing to S-MAC and the LH-MAC, simulation results show that LH-MAC reduce end-to-end time delay effectively under the premise of energy efficiency. |
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| Keywords: | wireless sensor networks (WSNs) hybrid MAC low time delay priority S-MAC |
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