| 无线传感器网络能量高效混合MAC算法 |
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| 引用本文： | 卢艳宏,掌 明,冯 源. 无线传感器网络能量高效混合MAC算法[J]. 国际商务研究, 2012, 52(8) |
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| 作者姓名： | 卢艳宏 掌 明 冯 源 |
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| 作者单位： | 连云港职业技术学院 电气学院，江苏 连云港 222005;淮海工学院 电子工程学院,江苏 连云港 222005;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项目（61174013）；江苏省高校自然科学基金资助项目(BK20110398,08KJD520003) |
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| 摘 要： | 针对无线传感器网络MAC协议中存在的能耗问题，提出了能量高效的无线传感器网络混合MAC（EEH-MAC）算法，采用基于TDMA机制的时槽系数动态调整簇内节点的时槽大小来降低数据的传输时延；同时，对部分不需要数据传输的节点不分配时槽来减少能耗；按簇内节点剩余能量系数形成时槽分配顺序来减少状态转换的能耗；在簇头之间采用CSMA/CA机制的随机分配策略进行通信。仿真结果表明，EEH-MAC协议能有效减少能耗并延长网络生命周期。
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| 关 键 词： | 无线传感器网络；介质访问控制；动态时隙分配；节能 |
An energy-efficient hybrid MAC algorithm in wireless sensor networks |
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| LU Yan-hong,ZHANG Ming and FENG Yuan. An energy-efficient hybrid MAC algorithm in wireless sensor networks[J]. International Business Research, 2012, 52(8) |
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| Authors: | LU Yan-hong ZHANG Ming FENG Yuan |
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| Affiliation: | Electrical Institute,Lianyungang Technical College,Lianyungang 222005,China;School of Electronic Engineering,Huaihai Institute of Technology,Lianyungang 222005,China;School of Electronic Engineering,Huaihai Institute of Technology,Lianyungang 222005,China |
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| Abstract: | Aiming at energy consumption for MAC protocol in wireless sensor networks(WSNs), an energy-efficient hybrid MAC algorithm for WSNs called EEH-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.At the same time,a slot order is formed 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 EEH-MAC can reduce energy consumption and prolong network lifetime. |
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| Keywords: | wireless sensor network(WSN) medium access control(MAC) dynamic slot allocation energy saving |
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