Results 31 to 40 of about 840 (165)
Sensors, 2022 In the context of localization and sensing within the Internet of Things, new antenna manufacturing technologies, such as antennas printed with conductive inks on thin thermoplastic sheets, allow for seamless integration into plastic objects produced by ...
Igor Lima de Paula +2 more
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Energy Consumption Analysis of LPWAN Technologies and Lifetime Estimation for IoT Application
Sensors, 2020 The spectrum of Internet of Things (IoT) applications is exponentially growing, driving the demand for better energy performance metrics. In conjunction, Low Power Wide Area Networks (LPWAN) have evolved as long-range connectivity enabler with low ...
Ritesh Kumar Singh +3 more
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Optimizing the Lifetime of IoT-Based Star and Mesh Networks
IEEE Access, 2020 In this paper, we propose and analyze a novel optimization model to maximize the lifetime of Internet-of-Things (IoT) networks, including the Low Power Wide-Area Network (LPWAN) based Sigfox star networks and Time Slotted Channel Hopping (TSCH) mesh ...
Hamid Al-Hamadi +3 more
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Communication protocols evaluation for a wireless rainfall monitoring network in an urban area
Heliyon, 2021 Rainfall monitoring networks are key elements for the development of alerts and prediction models for communities at risk of flooding during high intensity rainfall events.
Lilia Ortega-Gonzalez +3 more
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Modelling and Analysis of a Sigfox-Based IoT Network Using uppaalsmc [PDF]
IEEE Sensors Journal, 2023 Wireless sensor nodes are usually powered by batteries that have limited energy capacity. In many applications, the nodes are installed in inaccessible locations where they are problematic to replace or recharge. Therefore, energy optimization is crucial for increasing the node's lifetime. This study presents a method for the analysis and prediction of
Muhammad Naeem +5 more
openaire +1 more source
Localization in Low Power Wide Area Networks Using Wi-Fi Fingerprints
Applied Sciences, 2017 Supply chain management requires regular updates of the location of assets, which can be enabled by low power wide area networks, such as Sigfox. While it is useful to localize a device simply by its communication signals, this is very difficult to do ...
Thomas Janssen +2 more
doaj +1 more source
Analysis of the Distributed Queueing Algorithm in a Multichannel Network with Mixed-Type Traffic [PDF]
EAI Endorsed Transactions on Internet of Things, 2021 Networks such as LTE-M, NB-IoT, LoRa and SigFox are being deployed for massive IoT communications. However, the Aloha protocols used for the media access are inefficient when the network size is high.
Romeo Nibitanga +2 more
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Powering Sigfox nodes with harvested energy
, 2020 Sigfox is one of the popular LPWAN technologies used in the Internet of Things. As in the case of many other wireless protocols, Sigfox nodes are mainly powered with batteries, which leads to important maintenance costs and slows down its acceptance. Enabling such systems to work on harvested energy will facilitate their use and acceptance. We designed
Marcel Meli, Stefan Stajic, Stefan Wick
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A comparative study of LPWAN technologies for large-scale IoT deployment
ICT Express, 2019 By 2020, more than 50 billion devices will be connected through radio communications. In conjunction with the rapid growth of the Internet of Things (IoT) market, low power wide area networks (LPWAN) have become a popular low-rate long-range radio ...
Kais Mekki +3 more
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Coverage and Capacity Analysis of Sigfox, LoRa, GPRS, and NB-IoT [PDF]
2017 IEEE 85th Vehicular Technology Conference (VTC Spring), 2017 In this paper the coverage and capacity of SigFox, LoRa, GPRS, and NB-IoT is compared using a real site deployment covering 8000 km2 in Northern Denmark. Using the existing Telenor cellular site grid it is shown that the four technologies have more than 99 % outdoor coverage, while GPRS is challenged for indoor coverage. Furthermore, the study analyzes
Benny Vejlgaard +5 more
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