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Browsing by Subject "LoRaWAN"

Now showing items 1-19 of 19

Blockchain-based security model for LoRaWAN firmware updates

Author: Mtetwa, NS ; Tarwireyi, P ; Sibeko, CN ; Abu-Mahfouz, Adnan MI ; Adigun, M Date: Jan 2022 The Internet of Things (IoT) is changing the way consumers, businesses, and governments interact with the physical and cyber worlds. More often than not, IoT devices are designed for specific functional requirements or use cases without paying ... Read more
A comprehensive analysis of LoRaWAN key security models and possible attack solutions

Author: Ntshabele, K ; Isong, B ; Gasela, N ; Abu-Mahfouz, Adnan MI Date: Sep 2022 Low-Power Wide-Area Network (LPWAN) is a wireless WAN technology that connects low-powered and low-bandwidth devices with low bit rates atop Long Ranges (LoRa). It is characterized by improved scalability, wide area coverage, and low power ... Read more
Empirical analysis of LoRaWAN-based adaptive data rate algorithms

Author: Charles, L ; Isong, B ; Lugayizi, F ; Abu-Mahfouz, Adnan MI Date: Oct 2021 Long Range Wide Area Networking (LoRaWAN) has established itself as one of the leading Media Access Control (MAC) layer protocols in the realm of Low Power Wide Area Networks (LPWAN). Although the technology itself is quite mature, the resource ... Read more
Evaluating the LoRaWAN protocol using a permanent outdoor testbed

Author: Marais, JM ; Malekian, R ; Abu-Mahfouz, Adnan MI Date: Jun 2019 Low-power wide-area network (LPWAN) protocols, such as a long range wide area network (LoRaWAN), are key to ensuring scalable wireless communication for Internet of Things devices. In this paper, an analysis of this protocol through a performance ... Read more
A fuzzy-logic based adaptive data rate scheme for energy-efficient loRaWAN communication

Author: Kufakunesu, R ; Hancke, G ; Abu-Mahfouz, Adnan MI Date: Oct 2022 Long Range Wide Area Network (LoRaWAN) technology is rapidly expanding as a technology with long distance connectivity, low power consumption, low data rates and a large number of end devices (EDs) that connect to the Internet of Things (IoT) ... Read more
The impact of gateway node density on the performance of LoRaWAN

Author: Kufakunesu, Rachel ; Hancke, Gerhard P ; Abu-Mahfouz, Adnan MI Date: Aug 2022 The concept of Internet of Things (IoT) has increased in prominence as the demand for device interconnectedness increases worldwide. Numerous technologies have been proposed to provide the required technology and network infrastructure. Low ... Read more
Improving the sustainability of confirmed traffic in LoRaWANs through an adaptive congestion scheme

Author: Marais, JM ; Abu-Mahfouz, Adnan MI ; Hancke, GP Date: Dec 2022 The scalability of long-range wide area networks (LoRaWANs) is known to be very sensitive to the presence of traffic from gateways (GWs) to end devices (downlink (DL) traffic). The protocol supports confirmed traffic, for which DL traffic is ... Read more
IoT devices and applications based on LoRa/LoRaWAN

Author: Khutsoane, Oratile C ; Isong, B ; Abu-Mahfouz, Adnan MI Date: Oct 2017 Internet of Things (IoT) has revolutionized the traditional Internet where only human-centric services were offered. It has enabled objects to have the ability to connect and communicate through the Internet. IoT has several applications such ... Read more
LoRa and LoRaWAN testbeds: A review

Author: Marais, J ; Malekian, R ; Abu-Mahfouz, Adnan MI Date: Sep 2017 The Internet of Things (IoT) is a fast-growing movement turning devices into always-connected smart devices through the use of communication technologies. This facilitates the creation of smart strategies allowing monitoring and optimization ... Read more
A LoRaWAN IoT-enabled trash bin level monitoring system

Author: Ramson, SRJ ; Vishnu, S ; Kirubaraj, AA ; Anagnostopoulos, T ; Abu-Mahfouz, Adnan MI Date: Feb 2022 Municipal solid waste management remains a major problem in urban areas, leading to serious health and environmental issues.Consequently, trash bins are placed in many places to handle the municipal solid waste, but these bins can overflow, ... Read more
OTA firmware updates for LoRaWAN using blockchain

Author: Mtetwa, SN ; Sibeko, N ; Tarwireyi, P ; Abu-Mahfouz, Adnan MI Date: Nov 2020 LoRaWAN is one of the LPWAN technologies that has become popular in both industries and research. LoRaWAN aims to provide long-range communication and empowers lowpowered devices to last for years in the field. LoRaWAN relies on the symmetric ... Read more
A review of LoRaWAN simulators: Design requirements and limitations

Author: Marais, JM ; Abu-Mahfouz, Adnan MI ; Hancke, GP Date: Nov 2019 Several wireless technologies are enabling the growth of the Internet of Things (IoT) industry. One of these, namely Long Range Wide Area Network (LoRaWAN), is very popular in the research community whose focus is on optimising the LoRaWAN ... Read more
Sensor-based solid waste handling systems: A survey

Author: Vishnu, S ; Jino Ramson, SR ; Rukmini, MSS ; Abu-Mahfouz, Adnan MI Date: Mar 2022 As a consequence of swiftly growing populations in the urban areas, larger quantities of solid waste also form rapidly. Since urban local bodies are found to be unable to manage this perilous situation effectively, there is a high probability ... Read more
A spreading factor congestion status-aware adaptive data rate algorithm

Author: Lehong, C ; Isong, B ; Lugayizi, F ; Abu-Mahfouz, Adnan MI Date: Dec 2021 LoRaWAN has established itself as one of the leading MAC layer protocols in the field of LPWAN. Although the technology itself is quite mature, its resource allocation mechanism, the Adaptive Data Rate (ADR) algorithm is still quite new, ... Read more
A survey of LoRaWAN adaptive data rate algorithms for possible optimization

Author: Lehong, C ; Isong, B ; Lugayizi, F ; Abu-Mahfouz, Adnan MI Date: Nov 2020 The Adaptive Data Rate (ADR) is used in LoRaWAN to ensure optimized data rates and transmission powers for static end devices. However, its implementation is still new, and therefore, its functionalities are limited. Multiple proposals have ... Read more
A survey on Adaptive Data Rate optimization in LoRaWAN: Recent solutions and major challenges

Author: Kufakunesu, R ; Hancke, GP ; Abu-Mahfouz, Adnan MI Date: Sep 2020 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, ... Read more
A survey on the viability of confirmed traffic in a LoRaWAN

Author: Marais, JM ; Abu-Mahfouz, Adnan MI ; Hancke, GP Date: Jan 2020 Internet of Things (IoT) deployments are on the rise globally with Low Power Wide Area Networks (LPWAN) providing the wireless networks needed for this expansion. One of these technologies namely Long Range Wide Area Network (LoRaWAN) has ... Read more
Towards achieving an efficient ADR scheme for LoRaWAN: A review of the constrained optimisation approach

Author: Kufakunesu, R ; Hancke, GP ; Abu-Mahfouz, Adnan MI Date: Nov 2021 Long Range Wide Area Network (LoRaWAN) is a networking technology that is rapidly growing in the Internet of Things (IoT) implementations under Low Power Wide Area Networks (LPWAN). The main goal of LoRaWAN is to optimise the coverage range, ... Read more
A trusted security key management server in LoRaWAN: Modelling and analysis

Author: Ntshabele, K ; Isong, B ; Gasela, N ; Abu-Mahfouz, Adnan MI Date: Sep 2022 The traditional Long-Range Wide-Area Network (LoRaWAN) uses an Advanced Encryption Standard (AES) 128 bit symmetric key to secure entities and data against several attacks. However, due to the existence of heterogeneous applications, designing ... Read more

Now showing items 1-19 of 19

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