EDCA virtual collision performance evaluation and mobility modeling in V2I communications

EDCA virtual collision management is a penalizing process that occurs in Intelligent Transportation Systems (ITS). It induces unfairness, priority inversion and quality of service degradation. This paper tackles the performance evaluation of the virtual collision management proposed by IEEE in vehicular environment and overviews the quality of service in presence of three ITS applications: Warning to a foggy zone, inter-distance measurement and road awareness. We perform a mathematical modelling based on a discrete Markov chain that tackles vehicles mobility. The objective of our study is to show the impact of virtual collision on vehicular network performance and dimension the RSU coverage area.