Interference Management in LoRaWANs — Overview and Simulation Study

Stoynov, Viktor; Poulkov, Vladimir; Valkova-Jarvis, Zlatka

doi:10.1109/rtuwo.2018.8587904

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The evaluation of parameters such as the spread factor [26], and the coding rate [27] sets the conditions for deploying nodes. Other works focus on the deployment of LoRa networks based on criteria different from those mentioned so far as in [28]. This paper evaluates the impact of interference on deployment in terms of BER [29] according to various spread factors, coding rates, and bandwidth As indicated above, the LoRa technology seems to be the most appropriate in the particular case of the Casamance context.…”

Section: The State Of the Artmentioning

confidence: 97%

Interference-Aware Nodes Deployment of a LoRa-Based Architecture for Smart Agriculture in the Southern Region of Senegal

Ndoye¹,

Diallo²,

Hakem³

et al. 2022

Adv. sci. technol. eng. syst. j.

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In Senegal, agriculture has always been seen as the foundation on which the socioeconomic development of the country rests. However, in the rural world, agriculture remains traditional at a time when the challenges of food self-sufficiency to accompany emergence are launched. In the southern part of Senegal commonly called Casamance, the abundance of rain makes it possible to practice rice cultivation and market gardening research must therefore play a leading role in the introduction of technological innovations, techniques, and decision-support tools to promote productive, competitive, and sustainable agriculture. Therefore, smart agriculture must focus on new solutions for water irrigation, soil quality, and culture monitoring. The emergence of the Internet of Things (IoT) is perceived as a very important lever for successful high-end intelligent agriculture. Indeed, the appearance of increasingly specialized monitoring sensors combined with new wireless communication technologies constitutes good decision-making tools. The proposal of this paper consists of a new network architecture that can cover a large cultivation area to carry out water irrigation techniques in Casamance. It is, therefore, a question of identifying the best communication technology among new Low-Power, WideArea Networks (LPWANs) such as Long-Range (LoRa), SigFox, etc which is suited to the environment considered. Also, the choice of the best deployment of sensors for better coverage. The choice of technology must be motivated by the financial costs and the range of transmission. The deployment must fix the optimal distance between the sensors minimizing the interferences according to some parameters specific to the environment. An analytical study is used on the deployment to determine the optimal distance between two gateway nodes to reduce induced interference.

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Section: The State Of the Artmentioning

confidence: 97%

Interference-Aware Nodes Deployment of a LoRa-Based Architecture for Smart Agriculture in the Southern Region of Senegal

Ndoye¹,

Diallo²,

Hakem³

et al. 2022

Adv. sci. technol. eng. syst. j.

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“…In slotted synchronization, the devices transmit synchronization requests in a slotted manner using device ID as presented in (2). The synchronization request is a confirmed packet with the acknowledgement bit set to high.…”

Section: Proposed Algorithmmentioning

confidence: 99%

Energy efficient slotted synchronization approach in LoRaWAN

Shayo,

Abdalla,

Mwambela

et al. 2024

IJEECS

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<p>In recent years, long-range wide-area networks (LoRaWAN) have gained much attention as low-power wide-area networks. LoRaWAN uses ALOHA as the medium access control protocol, where the end devices transmit data randomly and retransmit it up to eight times if collisions occur. ALOHA is not energy efficient and works perfectly for a smaller network. Several techniques, including the use of synchronization and scheduling schemes, to deal with the limitations imposed by ALOHA in LoRaWAN have been reported in the literature. However, the existing synchronization and scheduling algorithms transmit synchronization messages randomly using one super frame with fixed time slots that accommodate devices using different spreading factors, which limit the LoRaWAN network's scalability. This work proposes a slotted synchronization mechanism for transmitting synchronization requests to the gateway. The performance of the slotted synchronization was evaluated through simulation using packet delivery ratio (PDR) and energy efficiency as the performance parameters. The results indicate that when the number of devices in the network increases, a time-slotted synchronization consumes less energy, on average, by about 0.2 mAh. The use of a slotted synchronization can improve the energy efficiency of the end devices as collisions are completely avoided, achieving a PDR of 100%.</p>

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“…In this context, in the last five years, several IoT applications have been developed, making use of the different LPWAN options. The goal is to mitigate the hostile characteristics of urban environments [ 32 ] in terms of interferences, range and energy independence [ 33 , 34 , 35 , 36 , 37 , 38 ]. In addition, LoRaWAN, which is a kind of low power wide area network, has been used to develop wireless positioning techniques [ 39 ], even without a GPS antenna [ 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Development and Implementation of a Hybrid Wireless Sensor Network of Low Power and Long Range for Urban Environments

Bravo-Arrabal

Lozano

Serón

et al. 2021

Sensors

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The urban population, worldwide, is growing exponentially and with it the demand for information on pollution levels, vehicle traffic, or available parking, giving rise to citizens connected to their environment. This article presents an experimental long range (LoRa) and low power consumption network, with a combination of static and mobile wireless sensors (hybrid architecture) to tune and validate concentrator placement, to obtain a large coverage in an urban environment. A mobile node has been used, carrying a gateway and various sensors. The Activation By Personalization (ABP) mode has been used, justified for urban applications requiring multicasting. This allows to compare the coverage of each static gateway, being able to make practical decisions about its location. With this methodology, it has been possible to provide service to the city of Malaga, through a single concentrator node. The information acquired is synchronized in an external database, to monitor the data in real time, being able to geolocate the dataframes through web mapping services. This work presents the development and implementation of a hybrid wireless sensor network of long range and low power, configured and tuned to achieve efficient performance in a mid-size city, and tested in experiments in a real urban environment.

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Interference Management in LoRaWANs — Overview and Simulation Study

Cited by 8 publications

References 12 publications

Interference-Aware Nodes Deployment of a LoRa-Based Architecture for Smart Agriculture in the Southern Region of Senegal

Interference-Aware Nodes Deployment of a LoRa-Based Architecture for Smart Agriculture in the Southern Region of Senegal

Energy efficient slotted synchronization approach in LoRaWAN

Development and Implementation of a Hybrid Wireless Sensor Network of Low Power and Long Range for Urban Environments

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