A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy
In this paper, a pervasive monitoring system to be deployed in underground environments is presented. The system has been specifically designed for the so-called “Bottini”, i.e., the medieval aqueducts dug beneath the Centre of Siena, Italy. The results of a measurement campaign...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-01-01
|
Series: | Sensors |
Subjects: | |
Online Access: | http://www.mdpi.com/1424-8220/19/2/402 |
id |
doaj-461b4181629043849d4d3b527e946102 |
---|---|
record_format |
Article |
spelling |
doaj-461b4181629043849d4d3b527e9461022020-11-24T21:50:10ZengMDPI AGSensors1424-82202019-01-0119240210.3390/s19020402s19020402A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, ItalyAndrea Abrardo0Alessandro Pozzebon1Department of Information Engineering and Mathematical Sciences, University of Siena, 53100 Siena SI, ItalyDepartment of Information Engineering and Mathematical Sciences, University of Siena, 53100 Siena SI, ItalyIn this paper, a pervasive monitoring system to be deployed in underground environments is presented. The system has been specifically designed for the so-called “Bottini”, i.e., the medieval aqueducts dug beneath the Centre of Siena, Italy. The results of a measurement campaign carried out in the deployment scenario show that the transmission range of LoRa (Long Range) technology is limited to a maximum of 200 m, thus, making the adoption of a classical star topology impossible. Hence, a Linear Sensor Network topology is proposed based on multi-hop LoRa chain-type communications. In this scenario, an ad-hoc transmission scheme is presented that optimally evaluates the wake-up time of all nodes with the aim of minimizing the average energy dissipation deriving from clock offsets. Numerical results show that the proposed wake-up time optimization leads in the best case to a 50% reduction in power dissipation with respect to a scheme that evaluates the wake-up time in a non-optimal way.http://www.mdpi.com/1424-8220/19/2/402M2MD2DLoRamulti-hoplinear sensor networksunderground monitoring |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andrea Abrardo Alessandro Pozzebon |
spellingShingle |
Andrea Abrardo Alessandro Pozzebon A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy Sensors M2M D2D LoRa multi-hop linear sensor networks underground monitoring |
author_facet |
Andrea Abrardo Alessandro Pozzebon |
author_sort |
Andrea Abrardo |
title |
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy |
title_short |
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy |
title_full |
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy |
title_fullStr |
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy |
title_full_unstemmed |
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy |
title_sort |
multi-hop lora linear sensor network for the monitoring of underground environments: the case of the medieval aqueducts in siena, italy |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2019-01-01 |
description |
In this paper, a pervasive monitoring system to be deployed in underground environments is presented. The system has been specifically designed for the so-called “Bottini”, i.e., the medieval aqueducts dug beneath the Centre of Siena, Italy. The results of a measurement campaign carried out in the deployment scenario show that the transmission range of LoRa (Long Range) technology is limited to a maximum of 200 m, thus, making the adoption of a classical star topology impossible. Hence, a Linear Sensor Network topology is proposed based on multi-hop LoRa chain-type communications. In this scenario, an ad-hoc transmission scheme is presented that optimally evaluates the wake-up time of all nodes with the aim of minimizing the average energy dissipation deriving from clock offsets. Numerical results show that the proposed wake-up time optimization leads in the best case to a 50% reduction in power dissipation with respect to a scheme that evaluates the wake-up time in a non-optimal way. |
topic |
M2M D2D LoRa multi-hop linear sensor networks underground monitoring |
url |
http://www.mdpi.com/1424-8220/19/2/402 |
work_keys_str_mv |
AT andreaabrardo amultihoploralinearsensornetworkforthemonitoringofundergroundenvironmentsthecaseofthemedievalaqueductsinsienaitaly AT alessandropozzebon amultihoploralinearsensornetworkforthemonitoringofundergroundenvironmentsthecaseofthemedievalaqueductsinsienaitaly AT andreaabrardo multihoploralinearsensornetworkforthemonitoringofundergroundenvironmentsthecaseofthemedievalaqueductsinsienaitaly AT alessandropozzebon multihoploralinearsensornetworkforthemonitoringofundergroundenvironmentsthecaseofthemedievalaqueductsinsienaitaly |
_version_ |
1725884843709956096 |