基于磁感应技术的地下传感网信道建模仿真

doi:10.16182/j.issn1004731x.joss.201803042

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (3): 1102-1108.doi: 10.16182/j.issn1004731x.joss.201803042

基于磁感应技术的地下传感网信道建模仿真

刘洲洲^1,2, 申良²

1.西北工业大学计算机学院,西安陕西 710072;
2.西安航空学院电子工程学院, 西安陕西 710077

收稿日期:2016-03-23 出版日期:2018-03-08 发布日期:2019-01-02
作者简介:刘洲洲(1981-),男,陕西,博士,教授,研究方向为智能优化算法和无线传感器网络;申良(1982-),男,陕西,硕士,讲师,研究方向为系统仿真。
基金资助:
陕西省教育厅科研计划(16JK1395)

Channel Modeling and Simulation of Wireless Underground Sensor Networks Based on Magnetic Induction Technology

Liu Zhouzhou^1,2, Shen Liang²

1.School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China;
2.School of Electronic Engineering, Xi’an Aeronautical University, Xi’an 710077, China;

Received:2016-03-23 Online:2018-03-08 Published:2019-01-02

摘要/Abstract

摘要： 针对无线地下传感网(Wireless Underground Sensor Network,WUSN)电磁波通信中的信道高路径损耗、信道条件动态变化大和天线尺寸过大等问题,研究了磁感应线圈(Magnetic Induction,MI)在WUSN传输过程的信道特性影响,分析了谐变次偶源在土壤地层中的传输原理,通过传输等效电路图分析了土壤中线圈的极化方向与涡流损耗系数对信道模型的影响,考虑频率与距离的变化对信道特性的影响。通过选择有利于地下传输的器件,进行地下收发实验,对比实验所测得的结果与理论信道模型,分析并确定低频磁感应技术的系统理论模型与线圈在地下收发实验的结果是一致的。

关键词: 无线地下传感网, 磁感应技术, 信道模型, 建模

Abstract: Aiming at the problem of high path loss, huge dynamic changes of channel conditions and large antenna size of the electromagnetic wave communication channel in wireless underground sensor networks ( WUSN), the channel characteristics of magnetic induction (MI) in the process of WUSN transmission are studied and the transmission principle of harmonic source in soil strata is analyzed. The influence of the polarization direction of the coil and the eddy current loss coefficient on the channel model is analyzed by the transmission equivalent circuit diagram, and the influence of the change of the frequency and the distance on the channel characteristics is considered. Finally the devices that are in favor of the underground transmission are selected and underground receiving and dispatching experiment is carried out. By comparing the measured results with the theoretical channel model, the theoretical model of the low frequency magnetic induction technique is consistent with the experimental results.

Key words: wireless underground sensor networks, magnetic induction technology, channel model, modeling

中图分类号:

TP393

刘洲洲, 申良. 基于磁感应技术的地下传感网信道建模仿真[J]. 系统仿真学报, 2018, 30(3): 1102-1108.

Liu Zhouzhou, Shen Liang. Channel Modeling and Simulation of Wireless Underground Sensor Networks Based on Magnetic Induction Technology[J]. Journal of System Simulation, 2018, 30(3): 1102-1108.

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基于磁感应技术的地下传感网信道建模仿真

Channel Modeling and Simulation of Wireless Underground Sensor Networks Based on Magnetic Induction Technology

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