Aggregator to electric vehicle LoRaWAN based communication analysis in vehicle-to-grid systems in smart cities

Date

2020

Director

Publisher

IEEE
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

  • AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2017-85529-C3-2-R/ES/ recolecta
  • European Commission/Horizon 2020 Framework Programme/774094/ openaire
Impacto

Abstract

Recently, there has been growing attention to the power grid management due to the increasing concerns on global warming. With the advancement in electric vehicles (EV) industry and the evolution in batteries, EVs become an important contributor to the grid with capability of bidirectional power exchange with the grid. In this context, Vehicle-to-Grid (V2G) systems enable multiple functionalities between EVs and the corresponding aggregator. Thus, reliable, long-range communication capabilities between aggregator and EVs is compulsory. In this paper, wireless channel analysis for aggregator and electrical vehicle communication using Long-Range Wide Area Network (LoRaWAN) technology in V2G is presented, in order to test a low-cost solution with large coverage and reduced power consumption profile. Wireless channel and system-level measurements have been performed in a real urban scenario between EV's charging station in Pamplona (Spain) and a vehicle in motion using LoRaWAN 868 MHz devices. Wireless channel characterization is performed by implementing a full 3D urban scenario model, including elements such as buildings, vehicles, users and urban infrastructure such as lamp posts and benches. By means of in-house developed 3D Ray Launching algorithm with hybrid simulation capabilities, estimations of received power levels, signal to noise ratio and time domain parameters have been obtained, for the complete volume of the scenario under test in dense urban conditions. V2G end to end communication has been validated by implementing an intra-vehicle Controller Area Network-BUS (CAN BUS) data gathering system connected to the vehicle LoRaWAN transceiver and subsequently, to a cloud-based web service. The results show that the accurate deterministic based radio channel analysis enables to optimize the network design of LoRaWAN networks in a vehicular environment, considering inter-vehicular and infrastructure links, enabling scalable, low cost end to end data exchange for the deployment of ancillary V2G services.

Description

Keywords

Vehicle to grid (V2G), Smart cities, LoRaWAN, 3D ray launching (3D-RL), Radiofrequency characterization

Department

Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren / Estatistika, Informatika eta Matematika / Institute of Smart Cities - ISC / Ingeniería Eléctrica, Electrónica y de Comunicación / Estadística, Informática y Matemáticas

Faculty/School

Degree

Doctorate program

item.page.cita

H. Klaina et al., 'Aggregator to Electric Vehicle LoRaWAN Based Communication Analysis in Vehicle-to-Grid Systems in Smart Cities,' in IEEE Access, vol. 8, pp. 124688-124701, 2020, doi: 10.1109/ACCESS.2020.3007597.

item.page.rights

This work is licensed under a Creative Commons Attribution 4.0 License.

Licencia

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