Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"LoRaWAN"”.
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Energy-efficient adaptive data rate optimisation scheme for LoRaWAN
… LPWAN technology, Long Range Wide Area Network (LoRaWAN), has achieved widespread adoption attributable to its operation in the license-free sub-gigahertz frequency band, scalability, low bit rate, and energy efficiency. LoRaWAN networks consist of low-power end devices connected in a …
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Estudio de algoritmos de aprendizaje automático para el cálculo del LoRaWAN fingerprinting para posicionamiento en exteriores
… a partir de las señales enviadas a dispositivos LoRaWAN utilizando técnicas de aprendizaje automático similares a las utilizadas para predecir la posición en interiores a partir de las señales WiFi. Se han utilizado diferentes algoritmos de aprendizaje automático para evaluar su capacidad para …
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Large Scale Analysis and Scalability Enhancements for Low Power Wide Area Networks
… is an energy consumption analysis of the LoRaWAN protocol. A study of the comparative energy consumption rate of the primary LPWAN technologies is performed, based on the physical and MAC layer states of the protocols. Then, an analysis of the feasibility of the powering of LoRaWAN …
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Performance Modelling of Multi-Hop LoRa-based Networks for IoT Applications
… technologies, Long Range Wide Area Network (LoRaWAN) has gained significant attention, thanks to its open standard and the ease of establishing private networks. Conventional LoRaWAN networks typically employ a single-hop, star-topology design, where end-devices communicate directly with …
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Resource management and IP interoperability for low power wide area networks
Low Power Wide Area Networks (LPWANs) such as LoRaWAN, Sigfox, and NBIoT present a novel communication paradigm, which complements the traditional short-range Wireless Sensor Networks (WSNs). LPWANs promise to provide wide-area connectivity (up to tens of kilometers) and low-power operations (up to …
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Designing Intelligent Energy Efficient Scheduling Algorithm To Support Massive IoT Communication In LoRa Networks
… and promising network for IoT devices. Since LoRaWAN uses ALOHA for multi-access of channels, collision management is an important task. Moreover, in massive IoT, due to the increased number of devices and their Adhoc transmissions, collision becomes and concern. Furthermore, in long-range …
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Impacts of Multi-Hop Routing and Channel/Transmission Configuration Planning on LoRa Networks
… single-hop routing is currently adopted in LoRaWAN, an open network protocol developed by the LoRa Alliance for LoRa transmission technology, multi-hop routing has the potential to be introduced in the future version of LoRaWAN. Node energy efficiency and network lifetime are considered to …
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Towards scalable modern marine ecosystem monitoring
… integrating custom VHF signal processors with LoRaWAN to deliver near-real-time notifications for efficient archival biologger retrieval. Deployed in Antarctica, it successfully detected returning emperor penguins, demonstrating that robust, polar-grade automation improves detection reliability …
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Locating Unmanned Aerial Vehicles (UAVs)
… Indication (RSSI). Long Range Wide Area Network (LoRaWAN) protocol is utilized in the system. Initial results have shown that RSSI is the most accurate among the three methods and also has a minimal cost. Therefore, RSSI was used to estimate the distance between the UAV and each of the ground …
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Simulating Internet of Things Mobile Ad-Hoc Networks with Distributed Ledger Technology: "Which DLT is Best?"
… and prove that Long-Range Wide-area Network (LoRaWAN) is not viable for a gossip protocol. Our major contributions are: proving the general scalability of DLTs in low power IoT-MANET environments, identifying the bottleneck in P2P gossip, creating the first mobile DLT simulator, and comparing …
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Collaborative control of wave glider platforms - Local Communication and Sea State Estimation
… available on the market and proposes LoRaWAN technology for the local communication system. LoRaWAN was selected as it presented a robust radio modulation and had growing support in the industry. In this research, a LoRa-based network of two nodes was developed, implemented and tested …
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Decentralised protocol-independent automation in smart buildings
… MQTT automation scenarios involving 300 LoRaWAN and Wi-Fi sensors and actuators. The dissertation also introduces tools and techniques for large-scale evaluation and presents a concrete example of SGW privacy-preserving threat protection, aimed at enhancing building occupants' security …
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Localização e rastreamento 3D usando comunicação sem fio LoRa
… de longa distância e que faz parte do protocolo LoRaWAN. Aplicações nas redes de sensores sem fio (WSN) envolvendo essa tecnologia têm sido amplamente empregadas, trazendo bons resultados. Dentre as novas aplicações de IoT, envolvendo também Cidades Inteligentes, a localização e o rastreamento em …
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Power Efficient Wireless Sensor Node through Edge Intelligence
Edge intelligence can reduce power dissipation to enable power-hungry long-range wireless applications. This work applies edge intelligence to quantify the reduction in power dissipation. We designed a wireless sensor node with a LoRa radio and implemented a decision tree classifier, in situ, to …
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Wake-up Radio based Approach to Low-Power and Low-Latency Communication in the Internet of Things
… long-range wireless technologies. The current LoRaWAN architecture is mainly designed and optimized for up-links where the remote end devices disseminate data to the gateway using pure ALOHA techniques. As such, this limits the ability of the gateway to control, reconfigure, or query the …
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Srovnání metod pro lokalizaci uvnitř budov
Bakalářská práce se v teoretické části zabývá tématikou lokalizace osob či objektů pomocí IoT technologií ZigBee a LoRa™. Jsou zde probrány možnosti metod lokalizace, parametry užívaných technologií a seznámení se s existujícími moduly dostupnými na trhu. Výsledkem praktické části je návrh desek …
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An Edge-Based Blockchain-Enabled Framework for Preventing Insider Attacks in Internet of Things (IoT)
The IoT offers enormous potentials thanks to its Widespread adoption by many industries, individuals, and governments, leading explosive growth and remarkable breakthroughs that have made it a technology with seemingly boundless applications. However, the far-reaching IoT applications cum its …