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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Wi-Fi Direct Performance Evaluation for V2P Communications

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Autor(es):
de Almeida, Thales Teixeira [1, 2] ; Ribeiro Junior, Jose Geraldo [2] ; Campista, Miguel Elias M. [1] ; Costa, Luis Henrique M. K. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Fed Rio de Janeiro, UFRJ, PEE, COPPE DEL, Poli GTA, Av Athos da Silveira Ramos 149, BR-21941972 Rio De Janeiro - Brazil
[2] Fed Ctr Technol Educ Minas Gerais CEFET MG DCMLP, R Jose Peres 558, BR-36700001 Leopoldina - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF SENSOR AND ACTUATOR NETWORKS; v. 9, n. 2 JUN 2020.
Citações Web of Science: 0
Resumo

The high cost of IEEE 802.11p-compliant devices and the lack of a widely adopted standard motivate the search for alternative methods for vehicular communication. As a consequence, and due to the ubiquity of smartphones, we see an increasing number of proposals based on Wi-Fi Direct, especially related to the integration of pedestrians in VANETs. Nevertheless, given the complexity of real experimentation, it is difficult to assess the ability of Wi-Fi Direct to offer connectivity in the vehicular environment on a large scale, leading to the evaluation through simulation. In order to verify the ability of a simulation model of reproducing the Wi-Fi Direct behavior, we analyze the performance of a safety application based on the communication range, packet delivery rate, and packet inter-reception time. In V2P scenarios, with and without line of sight, with varying vehicle speed, measurements using smartphones are performed and their results compared with those of OMNeT++ simulator. The results indicate, apart from the simulator's accuracy, that the connection establishment time hinders the use of Wi-Fi Direct as a replacement to 802.11p. As an outcome of this observation, we evaluate a new transmission method for Wi-Fi Direct based on beacon stuffing, which mitigates the long connection establishment issue. (AU)

Processo FAPESP: 15/24494-8 - Comunicação e processamento de big data em nuvens e névoas computacionais
Beneficiário:Nelson Luis Saldanha da Fonseca
Modalidade de apoio: Auxílio à Pesquisa - Temático