文章基本信息

标题：Wi-Fi Direct Performance Evaluation for V2P Communications
本地全文：下载
作者：Thales Teixeira de Almeida ; José Geraldo Ribeiro Júnior ; Miguel Elias M. Campista 等
期刊名称：Journal of Sensor and Actuator Networks
电子版ISSN：2224-2708
出版年度：2020
卷号：9
期号：2
页码：28-47
DOI：10.3390/jsan9020028
出版社：MDPI Publishing
摘要：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.
关键词：VANETs; vehicular networks; connected vehicles; Wi-Fi Direct; Wi-Fi P2P; IEEE 802;11p; INET; OMNeT VANETs ; vehicular networks ; connected vehicles ; Wi-Fi Direct ; Wi-Fi P2P ; IEEE 802;11p ; INET ; OMNeT