Thematische Bibliographien / LoRaWAN network

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Auswahl der wissenschaftlichen Literatur zum Thema „LoRaWAN network“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 2. Februar 2022

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Zeitschriftenartikel zum Thema "LoRaWAN network"

Drotar, Istvan, Balazs Lukacs und Miklós Kuczmann. „LoRaWAN Network Performance Test“. Acta Technica Jaurinensis 13, Nr. 4 (11.08.2020): 268–80. http://dx.doi.org/10.14513/actatechjaur.v13.n4.547.

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There are several types of wireless IoT (Internet of Things) networks based on the connection distance between two communicating devices. For covering wide areas, LPWAN (Low Power Wide Area) networks can provide a good solution. These networks provide big coverage and low power consumption. One of the most popular LPWAN network is LoRaWAN (Long Range Wide Area Network). LoRaWAN networks are ideal for sending infrequent, small messages through long distances. In this article the network’s capacity, coverage and energy consumption have been tested. These are the most important attributes when designing a LoRaWAN network, so it can satisfy the requirements of LPWAN networks.

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Vangelista, Lorenzo, und Marco Centenaro. „Worldwide Connectivity for the Internet of Things Through LoRaWAN“. Future Internet 11, Nr. 3 (02.03.2019): 57. http://dx.doi.org/10.3390/fi11030057.

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The low-power wide-area network (LPWAN) paradigm is gradually gaining market acceptance. In particular, three prominent LPWAN technologies are emerging at the moment: LoRaWAN™ and SigFox™, which operate on unlicensed frequency bands, and NB-IoT, operating on licensed frequency bands. This paper deals with LoRaWAN™, and has the aim of describing a particularly interesting feature provided by the latest LoRaWAN™ specification—often neglected in the literature—i.e., the roaming capability between different operators of LoRaWAN™ networks, across the same country or even different countries. Recalling that LoRaWAN™ devices do not have a subscriber identification module (SIM) like cellular network terminals, at a first glance the implementation of roaming in LoRaWAN™ networks could seem intricate. The contribution of this paper consists in explaining the principles behind the implementation of a global LoRaWAN network, with particular focus on how to cope with the lack of the SIM in the architecture and how to realize roaming.

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Bankov, Dmitry, Evgeny Khorov und Andrey Lyakhov. „LoRaWAN Modeling and MCS Allocation to Satisfy Heterogeneous QoS Requirements“. Sensors 19, Nr. 19 (27.09.2019): 4204. http://dx.doi.org/10.3390/s19194204.

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LoRaWAN infrastructure has become widely deployed to provide wireless communications for various sensor applications. These applications generate different traffic volumes and require different quality of service (QoS). The paper presents an accurate mathematical model of low-power data transmission in a LoRaWAN sensor network, which allows accurate validation of key QoS indices, such as network capacity and packet loss ratio. Since LoRaWAN networks operate in the unlicensed spectrum, the model takes into account transmission attempt failures caused by random noise in the channel. Given QoS requirements, we can use the model to study how the performance of a LoRaWAN network depends on the traffic load and other scenario parameters. Since in LoRaWAN networks the transmissions at different modulation and coding schemes (MCSs) typically do not collide, we use the model to assign MCSs to the devices to satisfy their QoS requirements.

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Cotrim, Jeferson Rodrigues, und João Henrique Kleinschmidt. „LoRaWAN Mesh Networks: A Review and Classification of Multihop Communication“. Sensors 20, Nr. 15 (31.07.2020): 4273. http://dx.doi.org/10.3390/s20154273.

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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.

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Polonelli, Tommaso, Davide Brunelli, Achille Marzocchi und Luca Benini. „Slotted ALOHA on LoRaWAN-Design, Analysis, and Deployment“. Sensors 19, Nr. 4 (18.02.2019): 838. http://dx.doi.org/10.3390/s19040838.

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LoRaWAN is one of the most promising standards for long-range sensing applications. However, the high number of end devices expected in at-scale deployment, combined with the absence of an effective synchronization scheme, challenge the scalability of this standard. In this paper, we present an approach to increase network throughput through a Slotted-ALOHA overlay on LoRaWAN networks. To increase the single channel capacity, we propose to regulate the communication of LoRaWAN networks using a Slotted-ALOHA variant on the top of the Pure-ALOHA approach used by the standard; thus, no modification in pre-existing libraries is necessary. Our method is based on an innovative synchronization service that is suitable for low-cost wireless sensor nodes. We modelled the LoRaWAN channel with extensive measurement on hardware platforms, and we quantified the impact of tuning parameters on physical and medium access control layers, as well as the packet collision rate. Results show that Slotted-ALOHA supported by our synchronization service significantly improves the performance of traditional LoRaWAN networks regarding packet loss rate and network throughput.

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Lin, Jun, Zhiqi Shen, Chunyan Miao und Siyuan Liu. „Using blockchain to build trusted LoRaWAN sharing server“. International Journal of Crowd Science 1, Nr. 3 (04.09.2017): 270–80. http://dx.doi.org/10.1108/ijcs-08-2017-0010.

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Purpose With the rapid growth of the Internet of Things (IoT) market and requirement, low power wide area (LPWA) technologies have become popular. In various LPWA technologies, Narrow Band IoT (NB-IoT) and long range (LoRa) are two main leading competitive technologies. Compared with NB-IoT networks, which are mainly built and managed by mobile network operators, LoRa wide area networks (LoRaWAN) are mainly operated by private companies or organizations, which suggests two issues: trust of the private network operators and lack of network coverage. This study aims to propose a conceptual architecture design of a blockchain built-in solution for LoRaWAN network servers to solve these two issues for LoRaWAN IoT solution. Design/methodology/approach The study proposed modeling, model analysis and architecture design. Findings The proposed solution uses the blockchain technology to build an open, trusted, decentralized and tamper-proof system, which provides the indisputable mechanism to verify that the data of a transaction has existed at a specific time in the network. Originality/value To the best of our knowledge, this is the first work that integrates blockchain technology and LoRaWAN IoT technology.

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Kufakunesu, Rachel, Gerhard P. Hancke und Adnan M. Abu-Mahfouz. „A Survey on Adaptive Data Rate Optimization in LoRaWAN: Recent Solutions and Major Challenges“. Sensors 20, Nr. 18 (05.09.2020): 5044. http://dx.doi.org/10.3390/s20185044.

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Long-Range Wide Area Network (LoRaWAN) is a fast-growing communication system for Low Power Wide Area Networks (LPWAN) in the Internet of Things (IoTs) deployments. LoRaWAN is built to optimize LPWANs for battery lifetime, capacity, range, and cost. LoRaWAN employs an Adaptive Data Rate (ADR) scheme that dynamically optimizes data rate, airtime, and energy consumption. The major challenge in LoRaWAN is that the LoRa specification does not state how the network server must command end nodes pertaining rate adaptation. As a result, numerous ADR schemes have been proposed to cater for the many applications of IoT technology, the quality of service requirements, different metrics, and radio frequency (RF) conditions. This offers a challenge for the reliability and suitability of these schemes. This paper presents a comprehensive review of the research on ADR algorithms for LoRaWAN technology. First, we provide an overview of LoRaWAN network performance that has been explored and documented in the literature and then focus on recent solutions for ADR as an optimization approach to improve throughput, energy efficiency and scalability. We then distinguish the approaches used, highlight their strengths and drawbacks, and provide a comparison of these approaches. Finally, we identify some research gaps and future directions.

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Marini, Riccardo, Konstantin Mikhaylov, Gianni Pasolini und Chiara Buratti. „LoRaWANSim: A Flexible Simulator for LoRaWAN Networks“. Sensors 21, Nr. 3 (20.01.2021): 695. http://dx.doi.org/10.3390/s21030695.

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Among the low power wide area network communication protocols for large scale Internet of Things, LoRaWAN is considered one of the most promising, owing to its flexibility and energy-saving capabilities. For these reasons, during recent years, the scientific community has invested efforts into assessing the fundamental performance limits and understanding the trade-offs between the parameters and performance of LoRaWAN communication for different application scenarios. However, this task cannot be effectively accomplished utilizing only analytical methods, and precise network simulators are needed. To that end, this paper presents LoRaWANSim, a LoRaWAN simulator implemented in MATLAB, developed to characterize the behavior of LoRaWAN networks, accounting for physical, medium access control and network aspects. In particular, since many simulators described in the literature are deployed for specific research purposes, they are usually oversimplified and hold a number of assumptions affecting the accuracy of their results. In contrast, our simulator has been developed for the sake of completeness and it is oriented towards an accurate representation of the LoRaWAN at the different layers. After a detailed description of the simulator, we report a validation of the simulator itself and we then conclude by presenting some results of its use revealing notable and non-intuitive trade-offs present in LoRaWAN. Such simulator will be made available via open access to the research community.

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Matni, Nagib, Jean Moraes, Helder Oliveira, Denis Rosário und Eduardo Cerqueira. „LoRaWAN Gateway Placement Model for Dynamic Internet of Things Scenarios“. Sensors 20, Nr. 15 (04.08.2020): 4336. http://dx.doi.org/10.3390/s20154336.

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Extended Range Wide Area Network (LoRaWAN) has recently gained a lot of attention from the industrial and research community for dynamic Internet of Things (IoT) applications. IoT devices broadcast messages for neighbor gateways that deliver the message to the application server through an IP network. Hence, it is required to deploy LoRaWAN gateways, i.e., network planning, and optimization, in an environment while considering Operational Expenditure (OPEX) and Capital Expenditure (CAPEX) along with Quality of Service (QoS) requirements. In this article, we introduced a LoRaWAN gateway placement model for dynamic IoT applications called DPLACE. It divides the IoT devices into groups with some degree of similarity between them to allow for the placement of LoRaWAN gateways that can serve these devices in the best possible way. Specifically, DPLACE computes the number of LoRaWAN gateways based on the Gap statistics method. Afterward, DPLACE uses K-Means and Fuzzy C-means algorithms to calculate the LoRaWAN gateway placement. The simulations’ results proved the benefits of DPLACE compared to state-of-the-art LoRaWAN gateway placement models in terms of OPEX, CAPEX, and QoS.

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Citoni, Bruno, Shuja Ansari, Qammer Hussain Abbasi, Muhammad Ali Imran und Sajjad Hussain. „Impact of Inter-Gateway Distance on LoRaWAN Performance“. Electronics 10, Nr. 18 (08.09.2021): 2197. http://dx.doi.org/10.3390/electronics10182197.

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The large-scale behaviour of LoRaWAN networks has been studied through mathematical analysis and discrete-time simulations to understand their limitations. However, current literature is not always coherent in its assumptions and network setups. This paper proposes a comprehensive analysis of the known causes of packet loss in an uplink-only LoRaWAN network: duty cycle limitations, packet collision, insufficient coverage, and saturation of a receiver’s demodulation paths. Their impact on the overall Quality of Service (QoS) for a two-gateway network is also studied. The analysis is carried out with the discrete-event network simulator NS-3 and is set up to best fit the real behaviour of devices. This approach shows that increasing gateway density is only effective as the gateways are placed at a distance. Moreover, the trade-off between different outage conditions due to the uneven distribution of spreading factors is not always beneficial, diminishing returns as networks grow denser and wider. In particular, networks operating similarly to the one analysed in this paper should specifically avoid SF11 and 12, which decrease the average overall PDR by about 7% at 10% nodes increment across all configurations. The results of this work intend to homogenise behavioural assumptions and setups of future research investigating the capability of LoRaWAN networks and provide insight on the weight of each outage condition in a varying two-gateway network.

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Dissertationen zum Thema "LoRaWAN network"

Wang, Bin. „Realize Smart City Applications with LoRaWAN Network“. Thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-35428.

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Internet of Things is an important part of realizing smart cities, this article introduces a proposal to build an Internet of Things system with LoRaWAN to achieve diverse smart city applications. There are three problems proposed and resolved in this research, how to maximize wireless devices’ lifetime with LoRa protocol characters， how to choose the gateways’ location for improving the efficiency and reduce costs, and about a good way to set up network servers to balance performance and consumption to implement in smart city applications. The IoT platform is built completely and running three applications on it in this research, Smart Parking, Smart Building Monitoring and Smart Sewage Monitoring. The methods of build platform and set applications are also explained in this article.

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Placuzzi, Andrea. „A platform for aggregate computing over LoRaWAN network“. Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20484/.

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Recent technological developments led to increased computational and networking capabilities of everyday objects. This situation resulted in an increase in number of devices embedded in cyber-physical systems. In order to simplify the design and management of pervasive and heterogeneous systems like these, there is need for new high-level paradigms able to capture concerns like heterogeneity and location of the devices. Aggregate computing is one of these: it proposes to describe the global behaviour of a system by managing global spatio-temporal data structures, and abstracting details of its physical network, as topology and communication technology. A related problem with the design of complex pervasive systems is verifying their behaviour in a real scenario, because it is generally expensive, complicated, and not always possible in practice. A partial solution to the problem is testing this kind of systems using simulations. Even though simulations execute a system model, it should be noted that such model is only a system abstraction; however they can still provide reliable insights on the system behaviour and performance. In the Internet-of-Things context, an emergent enabling communication technology for situated devices is LoRaWAN. LoRaWAN is a network protocol that allows long range communications and low energy consumption, at the cost of limited data rate. There are currently no platforms for aggregated languages that support their execution over LoRaWAN networks. Moreover nowadays there are no simulators supporting real simulation of aggregate system over LoRaWAN networks: however there are simulators supporting aggregate applications or LoRaWAN networks. The contribution of this thesis is to provide a platform that supports the LoRaWAN abstractions as backend of an aggregate computing system, and join it to the existing DingNet simulator achieving a platform allowing aggregate applications simulations over realistic LoRaWAN networks.

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Jontegen, Felix, und Emma Good. „Evaluating LoRaWAN for IoT applications by developing a wireless parking space monitoring sensor“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234284.

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The process of finding a parking space can be a tedious task that drivers spent too much time on today. With the rising threat from global warming, reducing the time spent driving is vital. The purpose of this thesis is to evaluate the use of LoRaWAN for urban IoT applications by developing a sensor system for parking space monitoring to make this process easier. The main component of the developed prototype of the sensor system consists of a The Things UNO, which is a modified version of the Arduino Leonardo with an integrated RN2483 LoRaWAN transceiver module. Two types of sensors, an ultrasonic distance sensor and a magnetometer, were tested for car detecting abilities in the sensor system. The distance sensor was proven to be the more reliable sensor for detecting cars, but a combination of both a distance sensor and a magnetometer can be used to improve the power usage of the system. LoRaWAN has a high potential to work great in a parking space monitoring system and other urban IoT applications, but its coverage and reliability in different conditions requires more testing.
Att hitta en parkeringsplats kan vara en omständing uppgift, och är något som bilister idag spenderar för mycket tid på. Med den ökade risken från global uppvärmning är det viktigt att försöka reducera körtid. Syftet med den här rapporten är att utvärdera användandet av LoRaWAN för urbana IoT-applikationer genom att utveckla ett sensorsystem för att bevaka parkeringsplatser för att göra det enklare att hitta lediga parkeringsplatser. Huvudkomponenten i den utvecklade prototypen av sensorsystemet är en TheThings UNO, vilket är en modifierad version av en Arduino Leonardo med en inbyggd RN2483 LoRaWAN-modul. Två sorters sensorer, en avståndssensor och en magnetometer, testades i sensorsystemet. Avståndssensorn visade sig vara den mer pålitliga sensorn för att detektera bilar. En kombination av en avståndssensor och en magnetometer kan poteniellt användas tillsammans för att minska strömanvändningen. LoRaWANhar stor potential att fungera i ett parkeringbevakningssystem samt andra urbana IoT-applikationer, men dess täcking och pålitlighet i olika miljöer borde undersökas mer.

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Maturana, Araneda Nicolás Andrés. „Implementation and evaluation of static context header compression for IPv6 packets within a LoRaWAN network“. Tesis, Universidad de Chile, 2019. http://repositorio.uchile.cl/handle/2250/170134.

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Memoria para optar al título de Ingeniero Civil Eléctrico
El paradigma de comunicación Internet of Things (IoT), el cual plantea la posibilidad de interconectar objetos cotidianos y toda clase de dispositivos convencionales a Internet, está actualmente en pleno desarrollo. El gran número de nodos que se espera conectar a Internet exige a su vez la implementación a gran escala de Internet Protocol versión 6 (IPv6). IoT busca el desarrollo de nuevas aplicaciones y ha impulsado la creación de nuevas arquitecturas de red y nuevas clases de dispositivos. Las redes Low Power Wide Area Networks (LPWAN) han surgido recientemente como una evolución natural del concepto Wireless Sensor Networks (WSN), redes de sensores in- terconectadas. A la luz del IoT, las nuevas redes LPWAN abren un nuevo campo de desarrollo, principalmente enfocado en servicios de monitoreo y afines que se desarrollen en áreas am- plias y no requieran grandes tasas de transferencia. Los dispositivos LPWAN se caracterizan por ser de bajo consumo energético y de bajo costo, facilitando su despliegue masivo por largos períodos sin necesidad de recargar sus baterías. Long Range Wide Area Network (LoRaWAN) es una de las primeras y principales tec- nologías LPWAN, y presenta una gran flexibilidad que la hace ideal para redes de diseño propio. En América funciona en la banda industrial, científica y médica (ISM) alrededor de los 915 MHz. Sin embargo, también existen muchas otras tecnologías LPWAN con arquitec- turas y protocolos propietarios, lo que dificulta alcanzar la interoperabilidad que se desea en el entorno IoT. El grupo de trabajo para la implementación de IPv6 sobre redes LPWAN (lpwan WG) perteneciente al Internet Engineering Task Force (IETF) se encuentra actualmente desarrol- lando un mecanismo de compresión y fragmentación de paquetes IPv6 para redes LPWAN denominado Static Context Header Compression (SCHC). El esquema de compresión se en- cuentra terminado, pero aún no ha sido implementado ni evaluado de manera oficial. En este trabajo se presenta una plataforma experimental para la implementación y eval- uación del mecanismo SCHC sobre una red LoRaWAN consistente en un nodo terminal Mi- crochip y un Radio Gateway (RG) de Everynet. En su desarrollo se han integrado múltiples y diversas herramientas del campo de las Telecomunicaciones y las Tecnologías de Información y Comunicación (ICT). La plataforma creada logra una implementación básica pero exitosa del esquema de com- presión de SCHC. Por medio de ella se ha llevado a cabo una evaluación preliminar del funcionamiento de SCHC, analizando el nivel de compresión logrado por el mecanismo para tres contextos de comunicación característicos de una red LPWAN. Los resultados obtenidos son positivos.

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Laricchia, Luigi. „Monitoraggio ambientale tramite tecnologia LoRaWAN: misurazioni sperimentali e piattaforma di data analytics“. Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/17312/.

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I requisiti di molte applicazioni IoT necessitano di trasmettere dati su lunghe distanze, con basso data rate e con il minor impatto possibile sul consumo energetico. Le tecnologie LPWAN (Low Power Wide Area Network) sono state progettate per complementare ed in alcuni casi sostituire le soluzioni offerte dalla reti cellulari e dalle reti di sensori a corto/medio raggio. Nonostante la pletora di standards LPWAN disponibili sul mercato, la tecnologia LoRa/LoRaWAN sta riscuotendo notevole successo grazie alle performance che riesce a garantire. L’imponente mole di dati generata dalle applicazioni IoT richiede soluzioni in grado di poter archiviare e gestire in maniera efficiente il ciclo di vita delle informazioni. L’utilizzo di piattaforme di data analytics basate su sistemi NoSQL permettono una gestione più agile dei Big Data. In questa tesi è stata progettata ed implementata un’infrastruttura per il monitoraggio ambientale tramite LoRaWAN e la relativa piattaforma di data analytics adoperata per lo studio delle metriche relative alla trasmissione radio LoRa. I risultati ottenuti dalla sperimentazione possono essere usati per fare tuning delle configurazioni per il deploy in contesti reali.

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Eriksen, Rúni. „Energy Consumption of Low Power Wide Area Network Node Devices in the Industrial, Scientific and Medical Band“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259508.

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Low-Power Wide-Area Networks, LPWANs, achieve long communication ranges with a low energy consumption by communicating at low bit rates. Most LPWAN devices are battery powered and are required to operate for an extended period of time, which stresses the requirements for energy efficiency. This thesis investigates the energy consumption of LPWAN devices operating in the Industrial, Scientific and Medical, ISM, band and how use cases affect the consumption. Specifically, LoRa/LoRaWAN and Sigfox are examined. Their key characteristics are described and energy consumption is modelled. The models are verified by comparing the model outputs with measured power consumption of LoRa and Sigfox devices. Through the models, design parameters are investigated with regards to consumption, and product lifetime are estimated. The influence of use cases on energy consumption is explored by measuring the Package Delivery Ratio, PDR, at different ranges using various bit transmission rates.The results showed that the bitrate, data redundancy and protocol overhead were among parameters which could be used to optimise energy efficiency. It was also shown, that the device lifetimes could be significantly increased by increasing the transmission interval and removing message acknowledgements. Realistically, LoRa devices can have a lifetime of more than 10 years and Sigfox 3 years, using a 2800 mWh battery. The use case tests showed that a 100 % PDR should not be expected at any bitrate, but lower bitrates and messaging redundancy increase the likelihood of a successful package delivery. Hence, there is a tradeoff between low energy consumption and range/reliability. Additionally, it was found that a low node to gateway distance and a high gateway density increase the probability of a successful transaction. Thus, the power consumption is tightly coupled to the network configuration.
Low-Power Wide-Area Networks, LPWANs, uppnår långa kommunikationsräckvidder med låg energiförbrukning genom att kommunicera med låga bithastigheter. De flesta enheter är batteridrivna och måste operera över längre tid, vilket ökar kraven för energieffektivitet. Denna avhandling undersöker energiförbrukningen för LPWAN enheter i det industriella, vetenskapliga och medicinska ISM bandet och hur olika användningsfall påverkar förbrukningen. Specifikt undersöks LoRa/LoRaWAN och Sigfox. Deras viktigaste egenskaper beskrivs och deras energiförbrukning modelleras. Modellerna verifieras genom att jämföra resultaten från modellerna med uppmätt effektförbrukning av LoRa och Sigfox-enheter. Genom modellerna undersöks även designparametrar med avseende på strömkonsumtion och produktens livslängd uppskattas. Påverkan användningsfall har på energiförbrukning undersöks genom att mäta Package Delivery Ratio, PDR, vid olika avstånd och bitöverföringshastigheter.Resultaten visade att bitraten, dataredundansen och protokollstorleken var bland parametrar som kunde användas för att optimera energieffektiviteten. Det visades också att enhetens livslängd kunde ökas signifikant genom att öka överföringsintervallet och ta bort meddelandebekräftelser. Realistiskt kan LoRaenheter ha en livslängd på mer än 10 år och Sigfox 3 år, med ett batteri på 2800 mWh. Resultatet av olika test visade att en 100 % PDR inte bör förväntas vid någon bitrate, men lägre bitrater och redundans för meddelanden ökar sannolikheten för en paketleverans. Det finns därför en avvägning mellan låg energiförbrukning och räckvidd och sannolikheten för en lyckad packetleverans. Dessutom konstaterades att en låg nod till gateway-avstånd och en hög gateway-densitet ökar sannolikheten för att transaktioner lyckas. Således är energiförbrukningen tätt kopplad till nätverkskonfigurationen.

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Picard, Alexis. „I²PHEN : une nouvelle plateforme de télésurveillance médicale basée sur l'Internet des Objets“. Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCD056.

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La télésurveillance médicale est un domaine encore en plein développement en France. C'est une branche de la télémédecine qui a pour vocation de permettre à un médecin de recueillir et d'interpréter à distance les données nécessaires au suivi médical d'un patient. Elle permet, entre autres, d'améliorer le suivi médical à distance des personnes âgées en perte d'autonomie ou atteintes de pathologies chroniques (insuffisance cardiaque, diabète et hypertension artérielle par exemple), et ainsi elle favorise leur maintien à domicile et prévient au plus tôt d'éventuelles hospitalisations.Cette Thèse CIFRE au sein de l'entreprise MainCare (éditeur majeur de solutions digitales pour le monde de la santé) nous a permis de proposer la nouvelle plateforme I²PHEN (IoT Interoperable Platform for Health moNitoring low power) au sein de laquelle le suivi des paramètres de santé du patient est réalisé à l'aide d'objets connectés (tensiomètre, thermomètre, glucomètre, ...) qui communiquent avec la plateforme distante (monitoring de données distribuées). Le serveur de récupération peut alors déclencher des alertes, définies au préalable avec les équipes médicales. Le choix technologique des réseaux utilisés est un point majeur. En effet, les réseaux LPWAN (Low-Power Wide Area Network) offrent une alternative rentable et moins coûteuse en énergie que les réseaux cellulaires pour transmettre des petites quantités de données, sur des distances importantes et à partir de capteurs et d'objets faible puissance alimentés sur batterie. Ce domaine étant nouveau, et encore peu dédié au domaine médical, il a été nécessaire de développer de nouveaux axes de recherche comme COMMA, notre nouvel algorithme adaptatif pour réduire la consommation énergétique et les interférences en mobilités quotidiennes. Le premier verrou a été la consommation énergétique, en relation avec la qualité de service, de ces nouveaux réseaux dans le domaine critique de la santé. Le second verrou, et probablement le plus difficile, a été de proposer des solutions d'interopérabilité pour que les objets connectés puissent dialoguer via ces nouveaux réseaux avec la plateforme distante, par l'intermédiaire d'une passerelle locale (basée sur Arduino). Au final, la plateforme que nous proposons dans notre plateforme permet le télémonitoring des patients de bout en bout, interopérable et économe en énergie
Medical telemonitoring is an area still in full development in France. It is a branch of telemedicine which aims at enabling a doctor in collecting and interpreting remotely the data necessary for the medical follow-up of a patient. It enables, among others, in improving remote medical monitoring of seniors with loss of autonomy or suffering from chronic diseases (heart diseases, diabetes and high blood pressure for example). Hence it encourages their stay at home and to warn as soon as possible of any hospitalizations.This CIFRE Thesis within Maincare company (major publisher of digital solutions for the world of health) allowed us to propose our novel platform I²PHEN (IoT Interoperable Platform for Health moNitoring low power) in which the monitoring of a patient's health parameters is done using connected objects (sphygmomanometer, thermometer, glucometer, ...) which communicates with the remote platform (distributed data monitoring). The central server can then trigger alerts which are defined beforehand with the medical teams. The technological choice of the networks used is a major concern. LPWAN networks (Low-Power Wide Area Network) offer a cost-effective alternative and are less expensive in terms of energy than cellular networks to transmit small amounts of data from sensors and energy efficient objects powered on batteries over important distances. This field being new, and still little dedicated to the medical field, it is necessary to develop new focus of research such as COMMA, a new adaptive algorithm to reduce energy consumption and interference in daily mobility. Hence, the first lock is the energy consumption, in relation to the quality of service (QoS), of these new networks in the critical area of telemedecine. The second lock, and probably the most difficult, is to propose interoperable solutions in which connected objects can interact, through these new networks, with the remote platform through a local gateway (based on Arduino). In the end, the platform that we propose in this PHD allows the telemonitoring of patients from end to end, is interoperable and energy efficient

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Bouguera, Taoufik. „Capteur communicant autonome en énergie pour l'loT“. Thesis, Nantes, 2019. http://www.theses.fr/2019NANT4007/document.

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Une grande partie des nouvelles générations d'objets connectés ne pourra se développer que s'il est possible de les rendre entièrement autonomes sur le plan énergétique. Même si l'utilisation de batteries ou de piles résout une partie de ce problème en assurant une autonomie qui peut-être importante avec des coûts relativement faibles, elle introduit non seulement des contraintes de maintenance incompatibles avec certaines applications, mais aussi des problèmes de pollution. La récupération de l'énergie thermique, mécanique, électromagnétique, solaire ou éolienne est une solution très prometteuse. Dans ce cas, la vie de l'objet connecté peut-être prolongée. Cependant, l'énergie récupérée dépend fortement des conditions au voisinage du dispositif et peut donc varier de façon périodique ou aléatoire. Il parait alors important d'adapter le système (mesure et transmission de données) aux contraintes de la récupération d'énergie. L'objectif de la thèse est de proposer une solution de capteur autonome basée sur un système de récupération et de gestion multisources d'énergies (solaire et éolienne) et pouvant-être mis en oeuvre dans différentes classes d'applications IoT. On s'intéresse, dans un premier temps, à la modélisation de la consommation du noeud capteur. Ensuite, on modélise le système de récupération multisources. Puis, on se focalise sur le management de puissance du système autonome. Ce management est basé sur des prédictions de l'énergie disponible et de celle consommée. Enfin, le travail de modélisation et d'optimisation est validé par des expérimentations afin d’avoir un démonstrateur de Capteur Communicant Autonome en Énergie pour les applications IoT
Researchers aim to develop entirely autonomous sensors. By ensuring an important autonomy, the use of batteries solves part of the energy problem with relatively low costs. However, batteries introduce different problems such as maintenance and environmental pollution. Harvesting thermal, mechanical, electromagnetic, solar or wind energy present in the environment is an attractive solution. Using harvested energy from their surroundings, wireless sensor nodes can significantly increase their typical lifetime. Nevertheless, the harvested energy depends on the surrounding conditions of the device and can vary periodically or randomly. It seems important to adapt the system (measurement and data transmission) to the harvesting energy constraints. The thesis objective is to provide an autonomous sensor solution based on a multisources energy harvesting and management system (solar and wind energies), which can be used in different IoT applications. First, we are interested in modeling and optimizing the sensor node energy consumption. Then, the multiple harvesting system is modeled according to the energy needs of the sensor node. Besides, we focus on the power management of the autonomous system. This management part is based on predictions of both available and consumed energies. Finally, the proposed modeling and optimization studies are validated with experimental works in order to develop an Autonomous Communicating Sensor platform for IoT applications

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Milota, Martin. „Systém zabezpečení včelích úlů před nepovolenou manipulací“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442373.

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This master thesis deals with the design of beehive security system against unauthorized manipulation. The system uses LoRaWAN wireless communication technology for data transmission. The device records the movement of the beehive using an accelerometer and then locates the beehive using a GPS module. The low-energy system works via a battery-powered ESP32 microcontroller and is located on a beehive. The battery is charged using a solar panel. The system can be modularly expanded with additional sensors to monitor the condition of the bees. The device has been tested in practice, where it has been confirmed that it meets the required properties for securing beehives.

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Drápela, Roman. „Implementace a vyhodnocení komunikační technologie LTE Cat-M1 v simulačním prostředí Network Simulator 3“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400908.

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Diploma thesis deals with the implementation of LTE Cat-M1 technology in simulator NS--3 (Network Simulator 3). The theoretical part of the thesis summarizes key terms concerning IoT (Internet of Things), M2M (Machine-to-Machine) communication, LTE (Long Term Evolution) and LPWA (Low-Power Wide Area) networks. The practical part summarizes the possibilities of currently available modules for cellular technologies for NS-3, ie. the LENA module and the subsequent extension of LENA+ and ELENA. Simulation scenarios offer a comparison of LTE/LTE-A and LTE Cat-M1 (also known as eMTC - enhanced Machine Type Communication) technologies for M2M communication. The results of the simulations are well-arranged in the form of graphs and discussed at the end of the thesis.

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Bücher zum Thema "LoRaWAN network"

International, Symposium on Integration of LORAN-C/Eurofix and EGNOS/Galileo (2000 Bonn Germany). International Symposium on Integration of LORAN-C/Eurofix and EGNOS/Galileo: Towards a future European positioning and navigation network : symposium proceedings. Bonn: Deutsche Gesellschaft für Ortung und Navigation, 2000.

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Buchteile zum Thema "LoRaWAN network"

Benkahla, Norhane, Hajer Tounsi, Ye-Qiong Song und Mounir Frikha. „Enhanced Dynamic Duty Cycle in LoRaWAN Network“. In Ad-hoc, Mobile, and Wireless Networks, 147–62. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00247-3_15.

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Muthanna, Mohammed Saleh Ali, Ping Wang, Min Wei, Waleed Al-mughalles und Ahsan Rafiq. „Dynamic Programming Method for Traffic Distribution in LoRaWAN Network“. In Lecture Notes in Computer Science, 317–25. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-65726-0_28.

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Jebroni, Zakariae, Hajar Chadli, Khalid Salmi, Mohammed Saber und Belkassem Tidhaf. „Modeling and Simulation of LoRaWAN for Smart Metering Network“. In Advances in Smart Technologies Applications and Case Studies, 687–95. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53187-4_75.

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Benzarti, Sana, Bayrem Triki und Ouajdi Korbaa. „Drone Authentication Using ID-Based Signcryption in LoRaWAN Network“. In Advances in Intelligent Systems and Computing, 205–16. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49342-4_20.

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Polonelli, Tommaso, Davide Brunelli, Andrea Bartolini und Luca Benini. „A LoRaWAN Wireless Sensor Network for Data Center Temperature Monitoring“. In Lecture Notes in Electrical Engineering, 169–77. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11973-7_20.

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Francés-Chust, Jorge, Joaquín Izquierdo und Idel Montalvo. „LoRaWan for Smarter Management of Water Network: From metering to data analysis“. In Machine Learning for Cyber Physical Systems, 133–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-58485-9_15.

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Tsai, Kun-Lin, Fang-Yie Leu, Li-Chun Yang, Chi Li und Jhih-Yan Liu. „LoRaWAN Network Server Session Keys Establish Method with the Assistance of Join Server“. In Communications in Computer and Information Science, 23–33. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9609-4_3.

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Ngo, Thanh Dinh, Fabien Ferrero, Vinh Quang Doan und Tuan Van Pham. „Industrial LoRaWAN Network for Danang City: Solution for Long-Range and Low-Power IoT Applications“. In Research in Intelligent and Computing in Engineering, 65–75. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-7527-3_7.

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Aguilar, Sergio, Alexandre Marquet, Laurent Toutain, Carles Gomez, Rafael Vidal, Nicolas Montavont und Georgios Z. Papadopoulos. „LoRaWAN SCHC Fragmentation Demystified“. In Ad-Hoc, Mobile, and Wireless Networks, 213–27. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31831-4_15.

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Flauzac, Olivier, Joffrey Hérard, Florent Nolot und Philippe Cola. „A Fault Tolerant LoRa/LoRaWAN Relay Protocol Using LoRaWAN Class A Devices“. In Ad-Hoc, Mobile, and Wireless Networks, 295–302. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-61746-2_22.

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Konferenzberichte zum Thema "LoRaWAN network"

Oniga, Bogdan, Vasile Dadarlat, Elie De Poorter und Adrian Munteanu. „A secure LoRaWAN sensor network architecture“. In 2017 IEEE SENSORS. IEEE, 2017. http://dx.doi.org/10.1109/icsens.2017.8233990.

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Mihalik, Michal, Marian Hrubos und Emilia Bubenikova. „Wireless Proximity Sensor in LoRaWAN Network“. In 2020 International Conference on Applied Electronics (AE). IEEE, 2020. http://dx.doi.org/10.23919/ae49394.2020.9232725.

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Dalela, Pankaj Kumar, Smriti Sachdev und Vipin Tyagi. „LoRaWAN Network Capacity for Practical Network Planning in India“. In 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). IEEE, 2019. http://dx.doi.org/10.23919/ursiap-rasc.2019.8738342.

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Ferrari, Paolo, Emiliano Sisinni, Dhiego Fernandes Carvalho, Gabriel Signoretti, Marianne D da Silva, Ivanovitch Silva und Diego Silva. „Using LoRaWAN smart city infrastructure as backup network for Industry 4.0 enabled vehicles“. In IX Simpósio Brasileiro de Engenharia de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sbesc_estendido.2019.8646.

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Intelligent vehicles are the very next future of the automotive sector, which is renewing itself following Industry 4.0 paradigms. Today, car manufacturers are rapidly increasing the number of vehicles that continuously transmit data to the Internet, in order to enable the virtuous feedback paths foreseen by Industry 4.0. Such data are used to improve production (and products) during the entire lifetime of plants (and cars, also). A data link between on board devices and Internet must be created. Currently, the OBD (On Board Diagnostic) interface is available in the majority of cars and trucks. Some Edge devices with OBD and 3G/4G modems have been created, enabling easy Internet connection. However, congestion situation, as well as temporary outages, may create significant holes in the 3G/4G coverage. Recently, the transformation of city into Smart City is begun. An impressive number of new sensors are deployed in urban area. New wireless technologies are on the rise and, among them, LoRaWAN is the most used. If a vehicle is considered like a mobile sensor, then a viable option to fill 3G/4G gaps is the use of LoRaWAN infrastructure inside a Smart City. This paper deals with the creation of the prototype of an embedded platform which includes both OBD-II interface, 3G/4G connectivity and also LoRaWAN for backup situation. Considering the Smart City use cases, the application constrains regarding intelligent vehicles are discussed in order highlight design directions for the correct integration with the LoRaWAN infrastructure.

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Lalle, Yandja, Lamia Chaari Fourati, Mohamed Fourati und Joao Paulo Barraca. „LoRaWAN Network Capacity Analysis for Smart Water Grid“. In 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP). IEEE, 2020. http://dx.doi.org/10.1109/csndsp49049.2020.9249623.

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Almeida, Nelson C., Rodrigo P. Rolle, Eduardo P. Godoy, Paolo Ferrari und Emiliano Sisinni. „Proposal of a Hybrid LoRa Mesh / LoRaWAN Network“. In 2020 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). IEEE, 2020. http://dx.doi.org/10.1109/metroind4.0iot48571.2020.9138206.

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Fujdiak, Radek, Petr Mlynek, Jiri Misurec und Martin Strajt. „Simulated Coverage Estimation of Single Gateway LoRaWAN Network“. In 2018 25th International Conference on Systems, Signals and Image Processing (IWSSIP). IEEE, 2018. http://dx.doi.org/10.1109/iwssip.2018.8439232.

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Mayer, Irak. „LoRaWan-Hyperledger robust network integrity on IoT devices“. In Disruptive Technologies in Information Sciences III, herausgegeben von Misty Blowers, Russell D. Hall und Venkateswara R. Dasari. SPIE, 2019. http://dx.doi.org/10.1117/12.2519219.

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Kuzmichev, S. A., N. V. Stepanov und A. M. Turlikov. „METHODS FOR ASSIGNING DEVICES PARAMETERS WHEN DEPLOYING LORAWAN NETWORK“. In PROCESSING, TRANSMISSION AND PROTECTION OF INFORMATION IN COMPUTER SYSTEMS. St. Petersburg State University of Aerospace Instrumentation, 2020. http://dx.doi.org/10.31799/978-5-8088-1452-3-2020-1-241-245.

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McPherson, Ross, Craig Hay und James Irvine. „Using LoRaWAN Technology to Enhance Remote Power Network Monitoring“. In 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring). IEEE, 2019. http://dx.doi.org/10.1109/vtcspring.2019.8746298.

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