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Open AccessArticle

Evaluation of Push and Pull Communication Models on a VANET with Virtual Traffic Lights

Algoritmi Center, University of Minho, 4710-057 Braga, Portugal
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Information 2020, 11(11), 510; https://doi.org/10.3390/info11110510
Received: 1 October 2020 / Revised: 26 October 2020 / Accepted: 26 October 2020 / Published: 30 October 2020
(This article belongs to the Special Issue Vehicle-To-Everything (V2X) Communication)
It is expected in a near future that safety applications based on vehicle-to-everything communications will be a common reality in the traffic roads. This technology will contribute to improve the safety of vulnerable road users, for example, with the use of virtual traffic light systems (VTLS) in the intersections. This work implements and evaluates a VTLS conceived to help the pedestrians pass safely the intersections without real traffic lights. The simulated VTLS scenario used two distinct communication paradigms—the pull and push communication models. The pull model was implemented in named data networking (NDN), because NDN uses natively a pull-based communication model, where consumers send requests to pull the contents from the provider. A distinct approach is followed by the push-based model, where consumers subscribe previously the information, and then the producers distribute the available information to those consumers. Comparing the performance of the push and pull models on a VANET with VTLS, it is observed that the push mode presents lower packet loss and generates fewer packets, and consequently occupies less bandwidth, than the pull mode. In fact, for the considered metrics, the VTLS implemented with the pull mode presents no advantage when compared with the push mode. View Full-Text
Keywords: virtual traffic lights; vulnerable road user; vehicular named data networking; NDN; vehicular ad hoc networking; VANET virtual traffic lights; vulnerable road user; vehicular named data networking; NDN; vehicular ad hoc networking; VANET
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MDPI and ACS Style

Gama, O.; Santos, A.; Costa, A.; Nicolau, M.J.; Dias, B.; Macedo, J.; Ribeiro, B.; Goncalves, F.; Simoes, J. Evaluation of Push and Pull Communication Models on a VANET with Virtual Traffic Lights. Information 2020, 11, 510. https://doi.org/10.3390/info11110510

AMA Style

Gama O, Santos A, Costa A, Nicolau MJ, Dias B, Macedo J, Ribeiro B, Goncalves F, Simoes J. Evaluation of Push and Pull Communication Models on a VANET with Virtual Traffic Lights. Information. 2020; 11(11):510. https://doi.org/10.3390/info11110510

Chicago/Turabian Style

Gama, Oscar; Santos, Alexandre; Costa, Antonio; Nicolau, Maria J.; Dias, Bruno; Macedo, Joaquim; Ribeiro, Bruno; Goncalves, Fabio; Simoes, Joao. 2020. "Evaluation of Push and Pull Communication Models on a VANET with Virtual Traffic Lights" Information 11, no. 11: 510. https://doi.org/10.3390/info11110510

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