Nancy El Rachkidy

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Long-range low-power communications are starting to replace short-range low-power communications in monitoring applications based on wireless sensor networks, both in rural and urban environments, due to the small deployment cost of long-range technologies. In this paper, we focus on the MAC layer of the recent LoRaWAN (long-range wide area network)(More)
Monitoring of gas leaks and toxic substances in mines is made possible using wireless sensor networks. However, wireless networks in mines form linear topologies that are unusual in other types of networks. In this paper, we show that the ZigBee standard is not suitable to mines because of the addressing mechanisms it proposes. Our contributions are(More)
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