| 一种动态占空比的无线传感器网络MAC协议 |
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| 引用本文： | 王晓东,闵捷,周宇,叶庆卫.一种动态占空比的无线传感器网络MAC协议[J].计算机工程,2011,37(24):97-99. |
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| 作者姓名： | 王晓东 闵捷 周宇 叶庆卫 |
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| 作者单位： | 宁波大学信息科学与工程学院,浙江宁波,315211 |
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| 基金项目： | 国家自然科学基金资助项目，宁波大学刘孔爱菊教育基金 |
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| 摘 要： | 在无线传感器网络(WSN)中,降低能耗会引发端到端时延的增加.为兼顾能耗和时延的平衡,提出一种基于动态占空比的WSN介质访问控制协议.通过计算节点利用率、平均睡眠延时,结合占空比上下限,动态调整节点占空比,使其更好地适应网络实时通信流量.实验结果表明,该协议在线性拓扑中比S-MAC节能52％,延迟减少35％,在网状拓扑...
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| 关 键 词： | 无线传感器网络 介质访问控制协议 占空比 平均时延 |
| 收稿时间： | 2011-05-06 |
Medium Access Control Protocol with Dynamic Duty Cycle in Wireless Sensor Network |
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| WANG Xiao-dong,MIN Jie,ZHOU Yu,YE Qing-wei.Medium Access Control Protocol with Dynamic Duty Cycle in Wireless Sensor Network[J].Computer Engineering,2011,37(24):97-99. |
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| Authors: | WANG Xiao-dong MIN Jie ZHOU Yu YE Qing-wei |
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| Affiliation: | (College of Information Science and Engineering,Ningbo University,Ningbo 315211,China) |
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| Abstract: | Lowering the energy consumption may result in higher latency Wireless Sensor Network（WSN）. To address such a tradeoff, this paper proposes a Media Access Control（MAC） protocol based on dynamic duty cycle. It adjusts duty cycle dynamically based on utilization, average sleeping delay, and the upper and lower bound of duty cycle. Experimental results show that the MAC protocol saves energy about 52% and reduces latency by 35% from S-MAC in a chain topology. In the cross topology, it achieves 68% energy saving and 46% latency reduction from S-MAC. |
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| Keywords: | Wireless Sensor Network（WSN） Media Access Control（MAC） protocol duty cycle average delay |
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