Principles and Applications of Narrowband IoT

Author(s):  
Eisha Akanksha

The internet of things (IoT) brings ‘life' to non-living things. In the IoT frameworks, the devices become smarter, more intelligent, become able to make decisions, and can communicate with other entities, applications, as well as human beings. According to a Gartner report, by 2020 more than 25 billion devices will be connected to the internet. Low power wireless wide area network (LPWAN) is a group of various low power, wide-area technologies such as LoRa, Sigfox, NB-IoT, DASH7, RPMA, LTE-M, designed to interconnect low bandwidth, battery-operated devices having limited processing power, limited memory, transmission speed with low bit rates at long-range using radio communication technologies. Most of these technologies provide a long battery life, low deployment cost, large capacity, and generates deeper insights of businesses. However, each technology differs in latency, data rate, handover mechanisms, quality of services, applications, and use cases. In this chapter, the authors provide the basic principles of these LPWANs and present their applications in different domains.

2019 ◽  
Vol 11 (3) ◽  
pp. 57 ◽  
Author(s):  
Lorenzo Vangelista ◽  
Marco Centenaro

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.


Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6837
Author(s):  
Adeiza J. Onumanyi ◽  
Adnan M. Abu-Mahfouz ◽  
Gerhard P. Hancke

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.


Network ◽  
2022 ◽  
Vol 2 (1) ◽  
pp. 36-52
Author(s):  
Miguel Rosendo ◽  
Jorge Granjal

The constant evolution in communication infrastructures will enable new Internet of Things (IoT) applications, particularly in areas that, up to today, have been mostly enabled by closed or proprietary technologies. Such applications will be enabled by a myriad of wireless communication technologies designed for all types of IoT devices, among which are the Long-Range Wide-Area Network (LoRaWAN) or other Low-power and Wide-Area Networks (LPWAN) communication technologies. This applies to many critical environments, such as industrial control and healthcare, where wireless communications are yet to be broadly adopted. Two fundamental requirements to effectively support upcoming critical IoT applications are those of energy management and security. We may note that those are, in fact, contradictory goals. On the one hand, many IoT devices depend on the usage of batteries while, on the other hand, adequate security mechanisms need to be in place to protect devices and communications from threats against their stability and security. With thismotivation in mind, we propose a solution to address the management, in tandem, of security and energy in LoRaWAN IoT communication environments. We propose and evaluate an architecture in the context of which adaptation logic is used to manage security and energy dynamically, with the goal of guaranteeing appropriate security, while promoting the lifetime of constrained sensing devices. The proposed solution was implemented and experimentally evaluated and was observed to successfully manage security and energy. Security and energy are managed in line with the requirements of the application at hand, the characteristics of the constrained sensing devices employed and the detection, as well as the threat, of particular types of attacks.


Author(s):  
Paulo Renato Câmera da Silva ◽  
Herman Augusto Lepikson ◽  
Marcus Vinícius Ivo da Silva ◽  
Rafael Barbosa Mendes

Sign in / Sign up

Export Citation Format

Share Document