Analytical Models of the Performance of C-V2X Mode 4 Vehicular Communications

07/17/2018 ∙ by Manuel Gonzalez-Martin, et al. ∙ 0

The C-V2X or LTE-V standard has been designed to support V2X (Vehicle to Everything) communications. The standard is an evolution of LTE, and it has been published by the 3GPP in Release 14. This new standard introduces the C-V2X or LTE-V Mode 4 that is specifically designed for V2V communications. In Mode 4, vehicles autonomously select and manage their radio resources without any cellular infrastructure support. Mode 4 is highly relevant since V2V safety applications cannot depend on the availability of infrastructure-based cellular coverage. This paper presents a set of novel analytical models of the communication performance of C-V2X or LTE-V Mode 4. In particular, the paper presents analytical models for the average PDR (Packet Delivery Ratio) as a function of the distance between transmitter and receiver, and for the four different types of transmission errors that can be encountered in C-V2X or LTE-V Mode 4. The models are validated in this study for a wide range of transmission parameters and traffic densities. To this aim, this study compares the results obtained with the analytical models to those obtained with a C-V2X or LTE-V Mode 4 simulator implemented by the authors over the Veins simulation platform. To the authors' knowledge, the models presented in this paper are the first to analytically model the communication performance of C-V2X or LTE-V Mode 4.



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