| 基于LQI量度的无线链路质量评估模型 |
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| 引用本文： | 朱剑,赵海,张希元,徐久强.基于LQI量度的无线链路质量评估模型[J].东北大学学报(自然科学版),2008,29(9):1262-1265. |
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| 作者姓名： | 朱剑 赵海 张希元 徐久强 |
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| 作者单位： | 东北大学信息科学与工程学院,辽宁,沈阳,110004;东北大学信息科学与工程学院,辽宁,沈阳,110004;东北大学信息科学与工程学院,辽宁,沈阳,110004;东北大学信息科学与工程学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家发改委示范工程项目，国家"火炬计划" |
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| 摘 要： | 链路质量评估对无线传感器网络的上层协议设计至关重要.在对大量采样值进行统计分析的基础上,提出了一个基于高斯分布的链路评估模型,该评估模型能够通过节点感知到的LQI值推断出节点之间的链路质量状况.模型验证表明,该研究具有扩展性,所建立的链路模型既可为无线传感器网络的实际应用提供依据,又可为上层协议的仿真研究提供有价值的参考.
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| 关 键 词： | 链路质量评估 高斯分布 包接收率 接收信号强度显示 链路质量指示 |
LQI-Based Evaluation Model of Wireless Link |
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| ZHU Jian,ZHAO Hai,ZHANG Xi-yuan,XU Jiu-qiang.LQI-Based Evaluation Model of Wireless Link[J].Journal of Northeastern University(Natural Science),2008,29(9):1262-1265. |
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| Authors: | ZHU Jian ZHAO Hai ZHANG Xi-yuan XU Jiu-qiang |
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| Institution: | (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China |
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| Abstract: | The evaluation of wireless communication link is crucial to the design of upper layer protocols of wireless sensor networks.Based on the statistical analysis made for a great deal of sampling values,a link evaluation model in terms of the Gaussian distribution is developed to infer the link quality or its condition between nodes from LQI(link quality indicate) values which the model is able to recognize.The model is verified and the results show that the model is extensible,i.e.,it may provide the valuable reference for not only the application of wireless sensor networks,but also the simulation study on upper layer protocols. |
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| Keywords: | link quality evaluation Gaussian distribution packet reception rate received signal strength indicator link quality indicator(LQI) |
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