Digital Signal Transmission in Magnetic Induction Based Wireless Underground Sensor Networks
Digital Signal Transmission in Magnetic Induction Based Wireless Underground Sensor Networks
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DOI：
10.1109/tcomm.2015.2425891
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发表时间：
2015-06-01
影响因子：
8.3
通讯作者：
Gerstacker, Wolfgang H.
中科院分区：
文献类型：
--
作者：
Kisseleff, Steven;Akyildiz, Ian F.;Gerstacker, Wolfgang H.
无线地下传感器网络的目标是在地下介质中建立高效的无线通信。提出了一种基于磁感应（MI）的信号传输方案，以克服非常苛刻的传播条件WUSNs。由于对环境变化的脆弱性低得多，MI技术已被证明与传统的基于EM波的传输相比，在可实现的数据速率和覆盖范围方面提高了系统性能。从文献中已知两种不同的方法：直接MI传输和MI波导，其中许多谐振中继电路被部署在要连接的两个节点之间的后者中。在这项工作中，数字传输方案的MI-WUSNs采用这两种方法进行了研究。研究了符号持续时间和调制方式等传输参数对系统性能的影响，并提出了新的优化方法。在这种情况下，与天真的直接方法相比，可以实现显著的收益。
The objective of Wireless Underground Sensor Networks (WUSNs) is to establish an efficient wireless communication in the underground medium. A magnetic induction (MI)-based signal transmission scheme has been proposed to overcome the very harsh propagation conditions in WUSNs. Due to a much lower vulnerability to the environmental changes, the MI technique has been shown to improve the system performance in terms of achievable data rates and coverage compared to the traditional EM wave based transmission. Two different approaches are known from the literature: direct MI transmission and MI waveguides, where many resonant relay circuits are deployed in the latter between the two nodes to be connected. In this work, digital transmission schemes are investigated for MI-WUSNs employing these two approaches. The influence of transmission parameters like symbol duration and modulation scheme are studied and new methods for their optimization are proposed. In this context, significant gains can be achieved compared to the naive straightforward approaches.