| 无感知分组丢失下的无线传感器网络链路质量评估模型 |
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| 引用本文： | 舒坚,刘琳岚,樊佑磊,李君.无感知分组丢失下的无线传感器网络链路质量评估模型[J].通信学报,2011,32(4):103-111. |
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| 作者姓名： | 舒坚 刘琳岚 樊佑磊 李君 |
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| 作者单位： | 1. 南昌航空大学物联网技术研究所,江西南昌,330063;南昌航空大学软件学院,江西南昌,330063
2. 南昌航空大学物联网技术研究所,江西南昌,330063;南昌航空大学信息工程学院,江西南昌,330063 |
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| 基金项目： | 国家自然科学基金资助项目，江西省自然科学基金资助项目，江西省科技支撑计划重点基金资助项目 |
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| 摘 要： | 针对现有链路质量评估方法没有考虑到不完整分组对链路产生的影响,将无线传感器网络的链路分组丢失分为感知分组丢失和无感知分组丢失,分析了无感知分组丢失产生的原因,在对无感知分组丢失进行度量的基础上,提出一种无感知分组丢失下的链路质量评估模型。该模型采用卡尔曼滤波对获取的CCI进行降噪处理,基于Cubic模型、最小二乘法拟合出CCI与无感知分组丢失率的关系模型。实验结果表明,无感知分组丢失下的链路质量评估模型是合理的,通过该模型求得的无感知分组丢失率与实测值接近。
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| 关 键 词： | 无线传感器网络 链路质量评估 无感知分组丢失 CCI 卡尔曼滤波器 |
Link quality estimation model for wireless sensor networks under non-perceived packet loss |
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| SHU Jian,LIU Lin-lan,FAN You-lei,LI Jun.Link quality estimation model for wireless sensor networks under non-perceived packet loss[J].Journal on Communications,2011,32(4):103-111. |
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| Authors: | SHU Jian LIU Lin-lan FAN You-lei LI Jun |
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| Affiliation: | SHU Jian1,2,LIU Lin-lan1,3,FAN You-lei1,LI Jun1,2(1.Internet of Things Technology Institute,Nanchang Hangkong University,Nanchang 330063,China,2.School of Software,3.School of Information Engineering,China) |
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| Abstract: | For the existing link quality estimation with no consideration of the incomplete packet impact on link quality in wireless sensor networks,the packet loss was divided into two categories-perceived packet loss and non-perceived packet loss.A link quality estimation model under non-perceived packet loss has been proposed on the basis of the analy-sis of the causes for the non-perceived packet loss and the measurement of the non-perceived packet loss.When the model is being built,Kalman filter is introduced to... |
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| Keywords: | wireless sensor networks link quality estimation non-perceived packet loss CCI Kalman filter |
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