scholarly journals A Dual Key-Based Activation Scheme for Secure LoRaWAN

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Jaehyu Kim ◽  
JooSeok Song
Keyword(s):  
Long Range ◽  
Wide Area ◽  
The Internet ◽  
Area Network ◽  
Key Generation ◽  
Wide Area Network ◽  
Session Key ◽  
Original Scheme ◽  
The Internet Of Things ◽  
Constrained Devices

With the advent of the Internet of Things (IoT) era, we are experiencing rapid technological progress. Billions of devices are connected to each other, and our homes, cities, hospitals, and schools are getting smarter and smarter. However, to realize the IoT, several challenging issues such as connecting resource-constrained devices to the Internet must be resolved. Recently introduced Low Power Wide Area Network (LPWAN) technologies have been devised to resolve this issue. Among many LPWAN candidates, the Long Range (LoRa) is one of the most promising technologies. The Long Range Wide Area Network (LoRaWAN) is a communication protocol for LoRa that provides basic security mechanisms. However, some security loopholes exist in LoRaWAN’s key update and session key generation. In this paper, we propose a dual key-based activation scheme for LoRaWAN. It resolves the problem of key updates not being fully supported. In addition, our scheme facilitates each layer in generating its own session key directly, which ensures the independence of all layers. Real-world experimental results compared with the original scheme show that the proposed scheme is totally feasible in terms of delay and battery consumption.

scholarly journals Improving the Convergence Period of Adaptive Data Rate in a Long Range Wide Area Network for the Internet of Things Devices

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5614
Author(s):  
Khola Anwar ◽  
Taj Rahman ◽  
Asim Zeb ◽  
Yousaf Saeed ◽  
Muhammad Adnan Khan ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Long Range ◽  
Data Rate ◽  
Convergence Time ◽  
Wide Area ◽  
The Internet ◽  
Area Network ◽  
Wide Area Network ◽  
Packet Losses ◽  
The Internet Of Things

A Long-Range Wide Area Network (LoRaWAN) is one of the most efficient technologies and is widely adopted for the Internet of Things (IoT) applications. The IoT consists of massive End Devices (EDs) deployed over large geographical areas, forming a large environment. LoRaWAN uses an Adaptive Data Rate (ADR), targeting static EDs. However, the ADR is affected when the channel conditions between ED and Gateway (GW) are unstable due to shadowing, fading, and mobility. Such a condition causes massive packet loss, which increases the convergence time of the ADR. Therefore, we address the convergence time issue and propose a novel ADR at the network side to lower packet losses. The proposed ADR is evaluated through extensive simulation. The results show an enhanced convergence time compared to the state-of-the-art ADR method by reducing the packet losses and retransmission under dynamic mobile LoRaWAN network.

scholarly journals Worldwide Connectivity for the Internet of Things Through LoRaWAN

2019 ◽  
Vol 11 (3) ◽  
pp. 57 ◽  
Author(s):  
Lorenzo Vangelista ◽  
Marco Centenaro
Keyword(s):  
Internet Of Things ◽  
Low Power ◽  
Cellular Network ◽  
Wide Area ◽  
The Internet ◽  
Area Network ◽  
Wide Area Network ◽  
Frequency Bands ◽  
The Moment ◽  
The Internet Of Things

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.

scholarly journals Low Power Wide Area Network, Cognitive Radio and the Internet of Things: Potentials for Integration

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6837
Author(s):  
Adeiza J. Onumanyi ◽  
Adnan M. Abu-Mahfouz ◽  
Gerhard P. Hancke
Keyword(s):  
Cognitive Radio ◽  
Internet Of Things ◽  
Low Power ◽  
Wide Area ◽  
The Internet ◽  
Area Network ◽  
Wide Area Network ◽  
Data Rates ◽  
Phy Layer ◽  
The Internet Of Things

The Internet of Things (IoT) is an emerging paradigm that enables many beneficial and prospective application areas, such as smart metering, smart homes, smart industries, and smart city architectures, to name but a few. These application areas typically comprise end nodes and gateways that are often interconnected by low power wide area network (LPWAN) technologies, which provide low power consumption rates to elongate the battery lifetimes of end nodes, low IoT device development/purchasing costs, long transmission range, and increased scalability, albeit at low data rates. However, most LPWAN technologies are often confronted with a number of physical (PHY) layer challenges, including increased interference, spectral inefficiency, and/or low data rates for which cognitive radio (CR), being a predominantly PHY layer solution, suffices as a potential solution. Consequently, in this article, we survey the potentials of integrating CR in LPWAN for IoT-based applications. First, we present and discuss a detailed list of different state-of-the-art LPWAN technologies; we summarize the most recent LPWAN standardization bodies, alliances, and consortia while emphasizing their disposition towards the integration of CR in LPWAN. We then highlight the concept of CR in LPWAN via a PHY-layer front-end model and discuss the benefits of CR-LPWAN for IoT applications. A number of research challenges and future directions are also presented. This article aims to provide a unique and holistic overview of CR in LPWAN with the intention of emphasizing its potential benefits.

„Stadtwerke sind prädestiniert für IoT“

BWK ENERGIE. ◽  
2019 ◽  
Vol 71 (01-02) ◽  
pp. 24-25
Author(s):  
Alexander Sommer
Keyword(s):  
Long Range ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network ◽  
Internet Der Dinge

IOT | Das Internet der Dinge (IoT) ist bei Stadtwerken zum Trendthema avanciert. Die items GmbH aus Münster, Full-Service-IT-Dienstleister für die Versorgungsbranche, baut aktuell ein interdisziplinäres IoT-Team auf, um Stadtwerke beim Aufbau und Betrieb von Infrastrukturen im Bereich der Long-Range-Wide-Area-Network (LoRaWAN)-Technologie unterstützen zu können. Im Gespräch mit BWK erläutert Alexander Sommer, Leiter Innovation & Transformation, die Strategie von items.

scholarly journals Demand side management using the internet of energy based on LoRaWAN technology

2017 ◽  
Vol 2 (3) ◽  
pp. 112-119 ◽  
Author(s):  
Om-Kolsoom Shahryari ◽  
Amjad Anvari-Moghaddam ◽  
Shadi Shahryari
Keyword(s):  
Smart Grid ◽  
Long Range ◽  
Fog Computing ◽  
Demand Side Management ◽  
Wide Area ◽  
Area Network ◽  
Demand Side ◽  
Wide Area Network ◽  
Telecommunication System ◽  
Processing Level

The smart grid, as a communication network, allows numerous connected devices such as sensors, relays and actuators to interact and cooperate with each other. An Internet-based solution for electricity that provides bidirectional flow of information and power is internet of energy (IoE) which is an extension of smart grid concept. A large number of connected devices and the huge amount of data generated by IoE and issues related to data transmission, process and storage, force IoE to be integrated by cloud computing. Furthermore, in order to enhance the performance and reduce the volume of transmitted data and process information in an acceptable time, fog computing is suggested as a layer between IoE layer and cloud layer. This layer is used as a local processing level that leads to reduction in data transmissions to the cloud. So, it can save energy consumption used by IoE devices to transmit data into cloud because of a long range, low power, wide area and low bit rate wireless telecommunication system which is called LoRaWAN. All devices in fog domain are connected by long range wide area network (LoRa) into a smart gateway.  The gateway which bridges fog domain and cloud, is introduced for scheduling devices/appliances by creating a priority queue which can perform demand side management dynamically. The queue is affected by not only the consumer importance but also the consumer policies and the status of energy resources.

scholarly journals Simple LoRa Protocol: Protokol Komunikasi LoRa Untuk Sistem Pemantauan Multisensor

2019 ◽  
Vol 5 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Eko Didik Widianto ◽  
Al Arthur Faizal ◽  
Dania Eridani ◽  
Richard Dwi Olympus Augustinus ◽  
Michael SM Pakpahan
Keyword(s):  
Long Range ◽  
Packet Loss ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network

Standar terbuka pada sistem komunikasi LoRa (Long Range) menyebabkan perbedaan cara implementasi dalam setiap penggunaannya. LoRaWAN (Long Range Wide Area Network) sebagai protokol bawaan LoRa masih mempunyai beberapa kekurangan yang menyebabkannya kurang efektif untuk diimplementasikan pada sistem tertentu. Penelitian ini mengembangkan protokol SLP (Simple LoRa Protocol) sebagai alternatif protokol komunikasi dan arsitektur jaringan yang didesain berdasarkan kekurangan yang dimiliki oleh LoRaWAN. Protokol ini mendefinisikan format data dan proses komunikasi antara client dan gateway dalam mode setup untuk pendaftaran node secara mandiri dan polling untuk transaksi data. Proses setup mampu mengenali node dengan konfigurasi sensor beragam dan dapat mengirmkan data dari node ke gateway dengan baik. Hasil pengujian menunjukkan bahwa SLP menghasilkan peningkatan performa QoS dalam throughput dan packet loss dari LoRaWAN menggunakan modulasi yang sama.

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