"A LoRaWAN Architecture for Communications in Areas without Coverage: Design and Pilot Trials", Felix Delgado-Ferro, Jorge Navarro-Ortiz, Natalia Chinchilla-Romero, Juan Jose Ramos-Munoz, Electronics, 11 (5), 2022. DOI: 10.3390/electronics11050804

This article proposes a system based on a long-distance communications system with low economic and energy costs that allows connectivity to be carried out independently from the existing cellular coverage in the area. In addition, it describes the design, development, implementation and analysis of an Internet of Things (IoT) architecture based on Long-Range Wide-Area Network (LoRaWAN). Moreover, the system has been deployed as a prototype, and the behavior and scope of the system have been analyzed in various real environments: urban, rural and natural. The results obtained from the analysis show that the system is suitable for working in areas without coverage such as mountains.

@Article{electronics11050804,
AUTHOR = {Delgado-Ferro, Felix and Navarro-Ortiz, Jorge and Chinchilla-Romero, Natalia and Ramos-Munoz, Juan Jose},
TITLE = {A LoRaWAN Architecture for Communications in Areas without Coverage: Design and Pilot Trials},
JOURNAL = {Electronics},
VOLUME = {11},
YEAR = {2022},
NUMBER = {5},
ARTICLE-NUMBER = {804},
URL = {https://www.mdpi.com/2079-9292/11/5/804},
ISSN = {2079-9292},
ABSTRACT = {This article proposes a system based on a long-distance communications system with low economic and energy costs that allows connectivity to be carried out independently from the existing cellular coverage in the area. In addition, it describes the design, development, implementation and analysis of an Internet of Things (IoT) architecture based on Long-Range Wide-Area Network (LoRaWAN). Moreover, the system has been deployed as a prototype, and the behavior and scope of the system have been analyzed in various real environments: urban, rural and natural. The results obtained from the analysis show that the system is suitable for working in areas without coverage such as mountains.},
DOI = {10.3390/electronics11050804},
impact = {(IF=2.9, Q2)},
project = {6gchronos|true5g|artemis|premonition}
}

"A LoRaWAN Network Architecture with MQTT2MULTICAST", Jorge Navarro-Ortiz, Natalia Chinchilla-Romero, Felix Delgado-Ferro, Juan Jose Ramos-Munoz, Electronics, 11 (6), 2022. DOI: 10.3390/electronics11060872

In this work, an architecture for IoT networks oriented towards environmental sustainability is presented. Due to the suitability of its characteristics in terms of coverage, power and support of a large number of devices, an enhanced LoRaWAN network has been chosen as the basis for this proposal. The architecture is completed with the virtualization of the different LoRaWAN network entities and the usage of a software-defined network for their interconnection. The publication and subscription to environmental data is carried out by using the MQTT protocol. MQTT has been optimized thanks to the use of the SDN network and the use of edge computing resources, which allows multicasting of published data. Thanks to our developed MQTT2MULTICAST protocol, latency is improved by approx. 90% and the traffic load within the SDN network is reduced by 55%. An scalability analysis shows that this solution is able to support tens of thousands of LoRaWAN gateways. The proposed architecture has been implemented using commercial equipment as a proof of concept.

@Article{electronics11060872,
AUTHOR = {Navarro-Ortiz, Jorge and Chinchilla-Romero, Natalia and Delgado-Ferro, Felix and Ramos-Munoz, Juan Jose},
TITLE = {A LoRaWAN Network Architecture with MQTT2MULTICAST},
JOURNAL = {Electronics},
VOLUME = {11},
YEAR = {2022},
NUMBER = {6},
ARTICLE-NUMBER = {872},
URL = {https://www.mdpi.com/2079-9292/11/6/872},
ISSN = {2079-9292},
ABSTRACT = {In this work, an architecture for IoT networks oriented towards environmental sustainability is presented. Due to the suitability of its characteristics in terms of coverage, power and support of a large number of devices, an enhanced LoRaWAN network has been chosen as the basis for this proposal. The architecture is completed with the virtualization of the different LoRaWAN network entities and the usage of a software-defined network for their interconnection. The publication and subscription to environmental data is carried out by using the MQTT protocol. MQTT has been optimized thanks to the use of the SDN network and the use of edge computing resources, which allows multicasting of published data. Thanks to our developed MQTT2MULTICAST protocol, latency is improved by approx. 90% and the traffic load within the SDN network is reduced by 55%. An scalability analysis shows that this solution is able to support tens of thousands of LoRaWAN gateways. The proposed architecture has been implemented using commercial equipment as a proof of concept.},
DOI = {10.3390/electronics11060872},
impact = {(IF=2.9, Q2)},
project = {6gchronos|true5g|artemis|premonition}
}

"Reduccion de la latencia en redes 5G-NR", Felix Delgado-Ferro, Jorge Navarro-Ortiz, Natalia Chinchilla-Romero, Juan Manuel Lopez-Soler, "XVI Jornadas de Ingenieria Telematica (JITEL 2023)", 2023

@INPROCEEDINGS{JITEL202323,
   author       = {Delgado-Ferro, Felix and Navarro-Ortiz, Jorge and Chinchilla-Romero, Natalia and Lopez-Soler, Juan Manuel},
   title        = {Reduccion de la latencia en redes 5G-NR},
   booktitle    = {XVI Jornadas de Ingenieria Telematica (JITEL 2023)},
   year         = {2023},
   month        = {November},
   address      = {Barcelona, Spain},
   COMMENTdoi   = {xxx},
   project      = {true5g|6gchronos|6ginspire},
   url          = {https://jitel2023.salleurl.edu/libro-actas}
}

"Converting a weather station into a LoRaWAN-enabled device", Jorge Navarro-Ortiz, Natalia Chinchilla-Romero, Felix Delgado-Ferro, Juan Jose Ramos-Munoz, Juan Manuel Lopez-Soler, "XVI Jornadas de Ingenieria Telematica (JITEL 2023)", 2023

@INPROCEEDINGS{JITEL202322,
   author       = {Navarro-Ortiz, Jorge and Chinchilla-Romero, Natalia and Delgado-Ferro, Felix and Ramos-Munoz, Juan Jose and Lopez-Soler, Juan Manuel},
   title        = {Converting a weather station into a LoRaWAN-enabled device},
   booktitle    = {XVI Jornadas de Ingenieria Telematica (JITEL 2023)},
   year         = {2023},
   month        = {November},
   address      = {Barcelona, Spain},
   COMMENTdoi   = {xxx},
   project      = {premonition|true5g|6gchronos},
   url          = {https://jitel2023.salleurl.edu/libro-actas}
}

"Transmission of images over LoRa", Jorge Navarro-Ortiz, Natalia Chinchilla-Romero, Felix Delgado-Ferro, Juan Jose Ramos-Munoz, Juan Manuel Lopez-Soler, Fernando Tejero-Rodriguez, "XVI Jornadas de Ingenieria Telematica (JITEL 2023)", 2023

@INPROCEEDINGS{JITEL20231,
   author       = {Navarro-Ortiz, Jorge and Chinchilla-Romero, Natalia and Delgado-Ferro, Felix and Ramos-Munoz, Juan Jose and Lopez-Soler, Juan Manuel and Tejero-Rodriguez, Fernando},
   title        = {Transmission of images over LoRa},
   booktitle    = {XVI Jornadas de Ingenieria Telematica (JITEL 2023)},
   year         = {2023},
   month        = {November},
   address      = {Barcelona, Spain},
   COMMENTdoi   = {xxx},
   project      = {premonition|true5g|6gchronos},
   url          = {https://jitel2023.salleurl.edu/libro-actas}
}

"WIMUNET: Current research on Internet of (Robotic) things and 5G", P. Munoz, L. Chinchilla-Romero, N. Chinchilla-Romero, J. Prados-Garzon, O. Adamuz-Hinojosa, F. Delgado-Ferro, J. Caleya-Sanchez, P. Rodriguez-Martin, P. Ameigeiras, J. Navarro-Ortiz, J. J. Ramos-Munoz, J. M. Lopez-Soler, "Arqus Research Focus Forum - Artificial Intelligence and its applications, Granada", 2022

@INPROCEEDINGS{Auto_Ch23,
  author={P. Munoz and L. Chinchilla-Romero and N. Chinchilla-Romero and J. Prados-Garzon and O. Adamuz-Hinojosa and F. Delgado-Ferro and J. Caleya-Sanchez and P. Rodriguez-Martin and P. Ameigeiras and J. Navarro-Ortiz and J. J. Ramos-Munoz and J. M. Lopez-Soler},
  booktitle={Arqus Research Focus Forum - Artificial Intelligence and its applications, Granada},
  title={WIMUNET: Current research on Internet of (Robotic) things and 5G},
  year={2022},
  volume={},
  number={},
  pages={},
  project      = {5gclarity|true5g|6gchronos|premonition},
  doi={}}

"WiMuNet's research lines", J. Navarro-Ortiz, N. Chinchilla-Romero, L. Chinchilla-Romero, J. Prados-Garzon, F. Delgado-Ferro, P. Ameigeiras, P. Munoz-Luengo, J. J. Ramos-Munoz, J. M. Lopez-Soler, "VI Workshop on QoE, QoS on Multimedia Communications (QQCM'21)", ISBN 9788409311248, 2021

@Inproceedings{jnavarroqqcm21, author={J. {Navarro-Ortiz} and N. {Chinchilla-Romero} and L. {Chinchilla-Romero} and J. {Prados-Garzon} and F. {Delgado-Ferro} and P. {Ameigeiras} and P. {Munoz-Luengo} and J. J. {Ramos-Munoz} and J. M. {Lopez-Soler}}, booktitle={VI Workshop on QoE, QoS on Multimedia Communications (QQCM'21)}, isbn={9788409311248}, title={WiMuNet's research lines}, year={2021}, url={https://sites.google.com/unizar.es/qqcm-2021/agenda}, project={5gclarity|true5g|artemis}}

"Arquitectura para redes IoT orientada a la sostenibilidad medioambiental (IoT network architecture for environmental sustainability)", J. Navarro-Ortiz, N. Chinchilla-Romero, F. Delgado-Ferro, J.J. Ramos-Munoz, "XV Jornadas de Ingenieria Telematica (JITEL 2021)", 2021

@INPROCEEDINGS{jnavarro_jitel21,  author={J. {Navarro-Ortiz} and N. {Chinchilla-Romero} and F. {Delgado-Ferro} and J.J. {Ramos-Munoz}},  booktitle={XV Jornadas de Ingenieria Telematica (JITEL 2021)}, title={Arquitectura para redes IoT orientada a la sostenibilidad medioambiental (IoT network architecture for environmental sustainability)}, year={2021}, project = {5gclarity|true5g|artemis}, pdf={https://digibug.ugr.es/handle/10481/71142}}

"Arquitectura LoRaWAN para entornos sin cobertura (LoRaWAN network architecture for environments without coverage)", F. Delgado-Ferro, J. Navarro-Ortiz, N. Chinchilla-Romero, J.J. Ramos-Munoz, "XV Jornadas de Ingenieria Telematica (JITEL 2021)", 2021

@INPROCEEDINGS{fdelgado_jitel21b,  author={F. {Delgado-Ferro} and J. {Navarro-Ortiz} and N. {Chinchilla-Romero} and J.J. {Ramos-Munoz}},  booktitle={XV Jornadas de Ingenieria Telematica (JITEL 2021)}, title={Arquitectura LoRaWAN para entornos sin cobertura (LoRaWAN network architecture for environments without coverage)}, year={2021}, project = {true5g|artemis}, pdf={https://digibug.ugr.es/handle/10481/71143}}

"Rendimiento de Redes 4G/5G usando una estacion base real (Performance of 4G/5G networks using a real base station)", F. Delgado-Ferro, J. Navarro-Ortiz, L. Chinchilla-Romero, P. Munoz-Luengo, "XV Jornadas de Ingenieria Telematica (JITEL 2021)", 2021

@INPROCEEDINGS{fdelgado_jitel21a,  author={F. {Delgado-Ferro} and J. {Navarro-Ortiz} and L. {Chinchilla-Romero} and P. {Munoz-Luengo}},  booktitle={XV Jornadas de Ingenieria Telematica (JITEL 2021)}, title={Rendimiento de Redes 4G/5G usando una estacion base real (Performance of 4G/5G networks using a real base station)}, year={2021}, project = {5gclarity|true5g}, pdf={https://digibug.ugr.es/handle/10481/71140}}