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LoRaWAN Range Extender for Industrial IoT

机译：Lorawan系列工业IOT的扩展器

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摘要

The LoRaWAN technology, an example of low power wide area network, is considered a possible IoT-derived solution for realizing private cellular (single-hop) communications in the industrial domain. However, despite LoRaWAN promises long range and dense environments with many obstacles (as the industrial ones), it may suffer from coverage issue. Additionally, the inverse relationship between data rates and range may be unacceptable for many industrial applications. In this article, an innovative LoRaWAN range extender (based on an enhanced LoRaWAN node) is described, and its integration in the infrastructure of industrial Internet of Things (IIoT)-enabled industrial wireless networks is presented. A frame relay strategy is suggested, thus avoiding to tradeoff the highest data rates against an increased sensitivity. The feasibility of the solution is formally verified and the features of the realized proof-of-concept prototype, based on commercially available hardware, are discussed. The experimental results, obtained with a purposely designed test bench, show the effectiveness of the proposed approach. In particular, the range extender is transparent for legacy LoRaWAN networks as confirmed by correct relaying of uplink and downlink for different types of LoRaWAN message.
机译：Lorawan技术是低功率广域网的示例，被认为是用于实现工业领域中的私人蜂窝（单跳）通信的可能的IoT导出的解决方案。然而，尽管洛瓦本承诺具有许多障碍的长期和密集的环境（作为工业人士），可能会遭受覆盖问题。另外，对于许多工业应用，数据速率和范围之间的反向关系可能是不可接受的。在本文中，描述了一个创新的Lorawan范围扩展器（基于增强洛拉瓦节点），并介绍了其工业互联网基础设施（IIOT）的工业无线网络中的集成。建议帧中继策略，从而避免对增加的灵敏度进行更高的数据速率来衡量。讨论了解决方案的可行性，并讨论了基于市售硬件的实现概念验证原型的特征。用目的设计的测试台获得的实验结果，表明了所提出的方法的有效性。特别地，范围扩展器对于传统的Lorawan网络是透明的，这是通过正确的上行链路和下行链路的正确中继链路来确认的，用于不同类型的LoraWan消息。

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