| 一种基于IEEE 802.11 PSM的增强节能机制 |
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| 引用本文： | 伏飞,刘晶,齐望东,沈洋. 一种基于IEEE 802.11 PSM的增强节能机制[J]. 电子科技大学学报(社会科学版), 2006, 0(6) |
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| 作者姓名： | 伏飞 刘晶 齐望东 沈洋 |
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| 作者单位： | 解放军理工大学指挥自动化学院 南京210007 |
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| 摘 要： | 分析了IEEE802.11分布式协调功能的能量节省机制,针对其采用一种固定信号时隙的局限性,提出了一种自适应节能机制。新机制采用三种信号时隙,由节点根据自己的数据流量动态选择其中一种。仿真结果表明,此机制在保持较高的吞吐量的同时,不仅大幅地提高了能量利用率,还明显地降低了时延。
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| 关 键 词： | IEEE802.11节能机制 AdHoc网络 信号时隙 能量利用率 |
Enhanced Power Saving Scheme for IEEE 802.11 PSM |
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| FU Fei,LIU Jing,QI Wang-dong,SHEN Yang. Enhanced Power Saving Scheme for IEEE 802.11 PSM[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2006, 0(6) |
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| Authors: | FU Fei LIU Jing QI Wang-dong SHEN Yang |
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| Abstract: | Power management is an important technique to prolong the lifetime of battery-powered wireless Ad Hoc networks. This paper analyzes the Power Saving Mechanism (PSM) of IEEE 802.11 Distributed Coordination Function (DCF) and presents a self-adaptive power saving mechanism, which consists of three different beacon intervals. In the new scheme the node selects one of the three beacon intervals dynamically, depending on its traffic. Simulation results show that the new scheme not only improves the efficiency of energy greatly but also achieves desirable transmission delay and throughput. |
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| Keywords: | IEEE 802.11 PSM Ad Hoc networks beacon interval efficiency of energy |
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