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Title Lorawan Mesh Networks: A Review And Classification Of Multihop Communication
ID_Doc 35644
Authors Cotrim J.R.; Kleinschmidt J.H.
Year 2020
Published Sensors (Switzerland), 20, 15
DOI http://dx.doi.org/10.3390/s20154273
Abstract The growth of the Internet of Things (IoT) led to the deployment of many applications that use wireless networks, like smart cities and smart agriculture. Low Power Wide Area Networks (LPWANs) meet many requirements of IoT, such as energy efficiency, low cost, large coverage area, and large-scale deployment. Long Range Wide Area Network (LoRaWAN) networks are one of the most studied and implemented LPWAN technologies, due to the facility to build private networks with an open standard. Typical LoRaWAN networks are single-hop in a star topology, composed of end-devices that transmit data directly to gateways. Recently, several studies proposed multihop LoRaWAN networks, thus forming wireless mesh networks. This article provides a review of the state-of-the-art multihop proposals for LoRaWAN. In addition, we carried out a comparative analysis and classification, considering technical characteristics, intermediate devices function, and network topologies. This paper also discusses open issues and future directions to realize the full potential of multihop networking. We hope to encourage other researchers to work on improving the performance of LoRaWAN mesh networks, with more theoretical and simulation analysis, as well as practical deployments. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Author Keywords Internet of things; LoRaWAN; LPWAN; Mesh networks; Multihop


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