Abstract
During emergency situations, a quick response time and low latency in the network can facilitate public safety. In this manuscript, the performance of LoRa technology in terms of Time on Air (ToA) is investigated by varying the set of radio parameters such as spreading factor (SF), signal bandwidth (BW), coding rate (CR) and payload size. The experimental results are also compared with the theoretical expectations for the use of LoRa technology. Our experimental results present system parameters that could be used under emergency evacuation or paramedic services scenarios while meeting the FCC’s requirement for ToA of 400 ms or less.
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REFERENCES
U. Atila, Y. Ortakci, K. Ozacar, E. Demiral, and I. R. Karas, “Smartescape: A mobile smart individual fire evacuation system based on 3D spatial model,” ISPRS Int. J. Geo-Inf. 7, 223 (2018). doi https://doi.org/10.3390/ijgi7060223
G. Ma and Z. Wu, “BIM-based building fire emergency management: Combining building users’ behavior decisions,” Autom. Constr. 109, 102975 (2020). https://doi.org/10.1016/j.autcon.2019.102975
LoRa Alliance Technical Committee, “Lorawan 1.1 regional parameters,” (LoRa Alliance, 2017). https://lora-alliance.org/wp-content/uploads/2020/11/lorawan-regional-parameters-v1.1ra.pdf.
C. Colman-Meixner, H. Khalili, K. Antoniou, M. S. Siddiqui, A. Papageorgiou, A. Albanese, P. Cruschelli, G. Carrozzo, L. Vignaroli, A. Ulisses, P. Santos, J. Colom, I. Neokosmidis, D. Pujals, R. Spada, A. Garcia, S. Figerola, R. Nejabati, and D. Simeonidou, “Deploying a novel 5G-enabled architecture on city infrastructure for ultra-high definition and immersive media production and broadcasting,” IEEE Trans. Broadcast. 65, 392–403 (2019). https://doi.org/10.1109/TBC.2019.2901387
LoRa Alliance Technical Committee Regional Parameters Workgroup, “LoRaWAN 1.0.3, Regional Parameters,” (LoRa Alliance, 2018). https://lora-alliance.org/ wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf.
Semtech, “Semtech Lora calculator.” https:// www.thethingsnetwork.org/airtime-calculator.
ACKNOWLEDGMENTS
The authors would like to thank Auld & White Constructors for funding this project. We would also like to acknowledge the efforts of our colleagues and the Dean at the University of North Florida, College of Computing, Engineering, and Construction for their careful review that helped select our project for funding through the Auld & White research endowment.
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Lopez, V., Kaushal, H., Prodanoff, Z. et al. Evaluation of Communication Delays in LoRaWAN Networks for Indoor Emergency Scenarios. J. Commun. Technol. Electron. 66 (Suppl 2), S149–S158 (2021). https://doi.org/10.1134/S1064226921140114
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DOI: https://doi.org/10.1134/S1064226921140114