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Peio Lopez-Iturri   Dr.  Research or Laboratory Scientist 
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Peio Lopez-Iturri published an article in November 2018.
Research Keywords & Expertise
0 A
0 Wireless Sensor Networks
0 ZigBee
0 3D ray launching
0 IoT
Top co-authors See all
Francisco Falcone

287 shared publications

Department of Electrical, Electronic and Communication Engineering, Public University of Navarre, 31006 Pamplona, Navarra, Spain

Miguel Beruete

284 shared publications

Millimeter and Terahertz Waves Laboratory, Universidad Publica de Navarra, E-31006, Pamplona, Pamplona, SPAIN

Jesus Villandangos

81 shared publications

Institute for Smart Cities, Public University of Navarre, 31006 Pamplona, Spain;(J.J.A.);(J.V.)

Leire Azpilicueta

70 shared publications

Institute for Smart Cities, Public University of Navarre, 31006 Pamplona, Spain

Cesar Vargas-Rosales

64 shared publications

Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico

67
Publications
208
Reads
17
Downloads
74
Citations
Publication Record
Distribution of Articles published per year 
(2012 - 2018)
Total number of journals
published in
 
25
 
Publications See all
CONFERENCE-ARTICLE 29 Reads 0 Citations <strong>Analysis, Design and Empirical Validation of a Smart Campus based on LoRaWAN</strong> Paula Fraga-Lamas, Mikel Celaya-Echarri, Peio Lopez-Iturri, ... Published: 14 November 2018
Proceedings, doi: 10.3390/ecsa-5-05740
DOI See at publisher website ABS Show/hide abstract

Internet of Things (IoT) applications in smart environments demand challenging requirements to the wireless networks in terms of security, coverage, availability, power consumption, and scalability. The technologies employed so far to cope with IoT scenarios are not yet able to manage simultaneously all these demanding requirements, but recent solutions like Low-Power Wide Area Networks (LP-WANs) have emerged as a promising alternative to provide low-cost and low-power consumption connectivity to nodes spread throughout a wide area. Specifically, the Long-Range Wide Area Network (LoRaWAN) standard is one of the most successful developments, receiving attention from both industry and academia. This work presents a comprehensive case study of LoRaWAN under a realistic scenario within a smart city: a smart campus. Such a medium-scale scenario has been implemented through the in-house developed 3D Ray Launching radio planning simulator including traffic lights, vehicles, people, buildings and urban furniture and vegetation. The developed tool is able to provide accurate radio propagation estimations within the smart campus scenario in terms of coverage,
capacity and energy efficiency of the network. These results are compared with an empirical validation in order to assess the operating conditions and the system accuracy. We further present an analysis of the key findings in order to provide some guidelines for IoT vendors, network operators, and city planners to investigate further deployments of LoRaWAN for large-scale smart city applications.

CONFERENCE-ARTICLE 19 Reads 0 Citations <strong>Radio Channel Characterization in Dense Forest Environments for IoT-5G</strong> Peio Lopez Iturri, Erik Aguirre, Mikel Celaya-Echarri, Leyre... Published: 14 November 2018
Proceedings, doi: 10.3390/ecsa-5-05731
DOI See at publisher website ABS Show/hide abstract

The attenuation due to vegetation can limit drastically the performance of Wireless Sensor Networks (WSN) and the Internet of Things (IoT) communication systems. Even more for the envisaged high data rates expected for the upcoming 5G mobile wireless communications. In this context, radio planning tasks become necessary in order to assess the validity of future WSN and IoT systems operating in vegetation environments. For that purpose, path loss models for scenarios with vegetation play a key role since they provide RF power estimations that allow an optimized design and performance of the wireless network. Although different propagation models for vegetation obstacles can be found in the literature, a model combining path loss and multipath propagation is rarely considered. In this contribution, we present the characterization of the radio channel for IoT and 5G systems in a real recreation area located within a dense oak forest environment. This specific forest, composed of thick in-leaf trees, is called Orgi Forest and it is situated in Navarre, Spain. In order to fit and validate a radio channel model for this type of scenarios, both measurements and simulations by means of an in-house developed 3D Ray Launching algorithm have been performed, which takes into account the previously mentioned path loss and multipath propagation phenomena.

CONFERENCE-ARTICLE 212 Reads 0 Citations <strong>Performance Evaluation and Interference Characterization of Wireless Sensor Networks for Complex High-Node Densi... Mikel Celaya-Echarri, Leyre Azpilicueta, Peio López-Iturri, ... Published: 14 November 2018
Proceedings, doi: 10.3390/ecsa-5-05729
DOI See at publisher website ABS Show/hide abstract

The uncontainablefuture development of Smart regions, as a set of Smart cities’ networks assembled, is directly associated with a growing demand of full interactive and connected ubiquitous smart environments. To achieve this global connection goal, large number of transceivers and multiple wireless systems will be involved to provide user services and applications (i.e. Ambient Assisted Living, emergency situations, e-health monitoring or Intelligent Transportation Systems) anytime and anyplace, regardless the devices, networks or systems, they use. Adequate, efficient and effective radio wave propagation tools, methodologies and analyses in complex environments (indoor and outdoor) are crucially required to prevent communication limitations such as coverage, capacity or speed or channel interferences due to nodes’ density or channel restrictions. In this work, radio wave propagation characterization in an urban indoor and outdoor environment, at ISM 2.4GHZ and 5GHz Wireless Sensor Networks (WSNs), has been assessed. The selected scenario is an auditorium placed in a city free open area surrounded by inhomogeneous vegetation. User density within the scenario, in terms of inherent transceivers density, poses challenges in overall system operation, given by multiple node operation which increases overall interference levels. By means of an in-house developed 3D ray launching algorithm, the impact of variable density wireless sensor network operation within this complex scenario is presented. This analysis and the proposed simulation methodology, can lead in an adequate interference characterization, considering conventional transceivers as well as wearables, which provide suitable information for the overall network performance in complex crowded indoor and outdoor scenarios.

Article 0 Reads 1 Citation Integration of Autonomous Wireless Sensor Networks in Academic School Gardens Peio Lopez-Iturri, Mikel Celaya-Echarri, Leyre Azpilicueta, ... Published: 25 October 2018
Sensors, doi: 10.3390/s18113621
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
In this work, the combination of capabilities provided by Wireless Sensor Networks (WSN) with parameter observation in a school garden is employed in order to provide an environment for school garden integration as a complementary educational activity in primary schools. Wireless transceivers with energy harvesting capabilities are employed in order to provide autonomous system operation, combined with an ad-hoc implemented application called MySchoolGardenApp, based on a modular software architecture. The system enables direct parameter observation, data analysis and processing capabilities, which can be employed by students in a cloud based platform. Providing remote data access allows the adaptation of content to specific classroom/homework needs. The proposed monitoring WSN has been deployed in an orchard located in the schoolyard of a primary school, which has been built with EnOcean’s energy harvesting modules, providing an optimized node device as well network layout. For the assessment of the wireless link quality and the deployment of the modules, especially the central module which needs to receive directly the signals of all the sensor modules, simulation results obtained by an in-house developed 3D Ray Launching deterministic method have been used, providing coverage/capacity estimations applicable to the specific school environment case. Preliminary trials with MySchoolGardenApp have been performed, showing the feasibility of the proposed platform as an educational resource in schools, with application in specific natural science course content, development of technological skills and the extension of monitoring capabilities to new context-aware applications.
Article 0 Reads 0 Citations Deterministic Propagation Modeling for Intelligent Vehicle Communication in Smart Cities. Fausto Granda, Leyre Azpilicueta, Cesar Vargas-Rosales, Mike... Published: 03 July 2018
Sensors,
PubMed View at PubMed ABS Show/hide abstract
Vehicular Ad Hoc Networks (VANETs) are envisaged to be a critical building block of Smart Cities and Intelligent Transportation System (ITS) where applications for pollution, congestion reduction, vehicle mobility improvement, accident prevention and safer roads are some of the VANETs expected benefits towards Intelligent Vehicle Communications. Although there is a significant research effort in Vehicle-to-Infrastructure (V2I) and Vehicle-to-Vehicle (V2V) communication radio channel characterization, the use of a deterministic approach as a complement of theoretical and empirical models is required to understand more accurately the propagation phenomena in urban environments. In this work, a deterministic computational tool based on an in-house 3D Ray-Launching algorithm is used to represent and analyze large-scale and small-scale urban radio propagation phenomena, including vehicle movement effects on each of the multipath components. In addition, network parameters such as throughput, packet loss and jitter, have been obtained by means of a set of experimental measurements for different V2I and V2V links. Results show the impact of factors such as distance, frequency, location of antenna transmitters (TX), obstacles and vehicle speed. These results are useful for radio-planning Wireless Sensor Networks (WSNs) designers and deployment of urban Road Side Units (RSUs).
Article 0 Reads 1 Citation Deterministic Propagation Modeling for Intelligent Vehicle Communication in Smart Cities Fausto Granda, Leyre Azpilicueta, Cesar Vargas-Rosales, Mike... Published: 03 July 2018
Sensors, doi: 10.3390/s18072133
DOI See at publisher website ABS Show/hide abstract
Vehicular Ad Hoc Networks (VANETs) are envisaged to be a critical building block of Smart Cities and Intelligent Transportation System (ITS) where applications for pollution, congestion reduction, vehicle mobility improvement, accident prevention and safer roads are some of the VANETs expected benefits towards Intelligent Vehicle Communications. Although there is a significant research effort in Vehicle-to-Infrastructure (V2I) and Vehicle-to-Vehicle (V2V) communication radio channel characterization, the use of a deterministic approach as a complement of theoretical and empirical models is required to understand more accurately the propagation phenomena in urban environments. In this work, a deterministic computational tool based on an in-house 3D Ray-Launching algorithm is used to represent and analyze large-scale and small-scale urban radio propagation phenomena, including vehicle movement effects on each of the multipath components. In addition, network parameters such as throughput, packet loss and jitter, have been obtained by means of a set of experimental measurements for different V2I and V2V links. Results show the impact of factors such as distance, frequency, location of antenna transmitters (TX), obstacles and vehicle speed. These results are useful for radio-planning Wireless Sensor Networks (WSNs) designers and deployment of urban Road Side Units (RSUs).
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