| 一种基于优先级的无线传感器网络实时MAC协议 |
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| 引用本文： | 李洪峻.一种基于优先级的无线传感器网络实时MAC协议[J].控制与决策,2010,25(6):873-878. |
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| 作者姓名： | 李洪峻 |
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| 作者单位： | 国防科学技术大学机电工程与自动化学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金项目(60475035) |
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| 摘 要： | MAC(Medium access control)协议直接影响着无线传感器网络能量的有效性和实时性,对此,提出一种基于公平优先级的MAC(FP-MAC)协议.该协议对不同类型的网络数据流设置不同的优先级,以保证较高优先级的数据能够实时传输;根据网络负载自适应地调节占空比,实现了低能耗与低时延.分析及实验表明,协议给出了时延上限,提供了实时性及可扩展性,同时保证了不同优先级之间的公平性,能够很好地适应具有实时性要求的无线传感器网络应用.
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| 关 键 词： | 无线传感器网络 MAC协议 实时性 优先级 公平性 |
| 收稿时间： | 2009/6/2 0:00:00 |
| 修稿时间： | 2009/8/16 0:00:00 |
Real-time MAC protocol of wireless sensor networks based on priority |
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| LI Hong-jun,LI Xun,MA Hong-xu.Real-time MAC protocol of wireless sensor networks based on priority[J].Control and Decision,2010,25(6):873-878. |
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| Authors: | LI Hong-jun LI Xun MA Hong-xu |
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| Affiliation: | LI Hong-jun,LI Xun,MA Hong-xu School of Mechatronics , Automation,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | Medium access control(MAC) directly effects the energy efficicy and the real-time in wireless sensor network.This paper studies the state of the art of current real-time MAC protocols,and then introduces a distributed medium access control protocol that provides multiple priority levels.The channel is accessed by stations according to their priorities,and for stations with the same priority,frames are sent in a round manner.The fairness between different priorities is provided.The datum with higher priority... |
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| Keywords: | Wireless sensor networks MAC protocol Real-time Priority Fairness |
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