| 无线传感器网络MAC层能耗与时延的权衡 |
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| 引用本文： | 王结太,于海勋. 无线传感器网络MAC层能耗与时延的权衡[J]. 计算机仿真, 2008, 25(4): 121-125 |
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| 作者姓名： | 王结太 于海勋 |
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| 作者单位： | 西北工业大学电子信息学院,陕西,西安,710072 |
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| 摘 要： | 无线传感器网络节点设计的最重要约束之一就是要求低能耗,这与传统网络依赖持续的能源供应而致力于提供尽可能高的服务质量截然不同.研究了一个结合无线传感器网络的能耗特性而提出的MAC协议S-MAC协议,并在对802.11MAC、S-MAC中的能耗状态与时延特征进行理论和数学分析的基础上,通过仿真实验得出了在模拟网络环境中802.11MAC和S-MAC的能耗和平均时延,S-MAC协议中引入节点周期性睡眠、冲突串音避免和消息传递等新技术,以牺牲时延为代价换取高效的能量利用,提供了一种高效可扩展的在能耗和时延之间进行权衡的方案.
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| 关 键 词： | 无线传感器网络 介质访问控制 能量有效 时延 |
| 文章编号： | 1006-9348(2008)04-0121-05 |
| 修稿时间： | 2007-05-25 |
Trade-off between Energy and Delay in MAC Layer of Wireless Sensor Networks |
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| WANG Jie-tai,YU Hai-xun. Trade-off between Energy and Delay in MAC Layer of Wireless Sensor Networks[J]. Computer Simulation, 2008, 25(4): 121-125 |
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| Authors: | WANG Jie-tai YU Hai-xun |
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| Affiliation: | WANG Jie-tai,YU Hai-xun(School of Electronics , Information,Northwestern Polytechnical University,Xi'an Shanxi 710072,China) |
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| Abstract: | One of the most important constraints on nodes of wireless sensor networks is the low power consumption requirement.Sensor nodes carry limited,generally irreplaceable power sources.Therefore,while traditional networks aim to achieve high quality of service provisions,sensor network protocols must focus primarily on power conservation.This paper presents the characteristics of energy consuming state and average delay in 802.11 MAC and S-MAC specifically designed for wireless sensor networks based on the theo... |
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| Keywords: | Wireless sensor networks(WSN) Media access control Energy efficient Latency |
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