| 基于分簇的无线传感器网络MAC节能算法 |
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| 引用本文： | 掌明,王经卓,董自健.基于分簇的无线传感器网络MAC节能算法[J].计算机工程,2012,38(15):70-73. |
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| 作者姓名： | 掌明 王经卓 董自健 |
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| 作者单位： | 淮海工学院电子工程学院,江苏连云港,222005 |
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| 基金项目： | 国家自然科学基金资助面上项目，江苏省高校自然科学基金资助项目，江苏省高校科研成果产业化推进基金资助项目 |
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| 摘 要： | 为减少节点能耗和提高信道利用率，提出一种基于分簇结构的无线传感器网络MAC节能算法(EEC-MAC)。在TDMA机制的基础上，采用时隙系数动态调整簇内节点的时隙大小，降低数据的传输时延。对于部分不需要数据传输的节点不分配时隙，使其拥有较长的睡眠时间来节约能量。簇内节点按其剩余能量系数形成时隙分配顺序，减少状态转换的能耗。簇间节点采用基于CSMA/CA机制的随机分配策略实现通信。仿真结果表明，EEC-MAC节能效果较好，具有较小的平均通信时延和较长的网络生命周期。
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| 关 键 词： | 无线传感器网络 介质访问控制 分簇 节能算法 时隙分配 |
| 收稿时间： | 2011-10-09 |
MAC Energy-efficient Algorithm in Wireless Sensor Network Based on Clustering |
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| ZHANG Ming
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WANG Jing-zhuo
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DONG Zi-jian.MAC Energy-efficient Algorithm in Wireless Sensor Network Based on Clustering[J].Computer Engineering,2012,38(15):70-73. |
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| Authors: | ZHANG Ming WANG Jing-zhuo DONG Zi-jian |
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| Affiliation: | (School of Electronic Engineering,Huaihai Institute of Technology,Lianyungang 222005,China) |
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| Abstract: | In order to reduce node energy consumption and improve channel utilization,an energy-efficient Medium Access Control(MAC) algorithm based on cluster for Wireless Sensor Network(WSN) called EEC-MAC is proposed.It adopts time-slot factor based on TDMA to adjust slot size to reduce data transmission delay and allows a longer sleep time for the part of nodes which have no data transmission to save energy,and forms a slot order by the residual energy coefficient to reduce the state conversion energy consumption.It uses CSMA/CA mechanism to communicate with cluster heads.Simulation results show that EEC-MAC has a better energy saving,a smaller average network delay and a longer lifetime. |
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| Keywords: | Wireless Sensor Network(WSN) MediumAccess Control(MAC) clustering energy-efficient algorithm slot allocation |
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