Paper Info
Title
A Multi-Hop LoRa Linear Sensor Network for the Monitoring of Underground Environments: The Case of the Medieval Aqueducts in Siena, Italy.
Abstract
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.
Year
DOI
Venue
2019
10.3390/s19020402
SENSORS
Keywords
Field
DocType
M2M,D2D,LoRa,multi-hop,linear sensor networks,underground monitoring
Software deployment,Monitoring system,Star network,Dissipation,Electronic engineering,Real-time computing,Hop (networking),Engineering,Wireless sensor network
Journal
Volume
Issue
ISSN
19
2
1424-8220
Citations 
PageRank 
References 
5
0.54
13
Authors
2
Name
Order
Citations
PageRank
Andrea Abrardo137647.39
Alessandro Pozzebon24216.63