Packet Reception Probabilities in Vehicular Communications Close to Intersections

Steinmetz, E., Wildemeersch, M. ORCID: https://orcid.org/0000-0002-6660-2712, Quek, T.Q.S., & Wymeersch, H. (2021). Packet Reception Probabilities in Vehicular Communications Close to Intersections. IEEE Transactions on Intelligent Transportation Systems 22 (5) 2823-2833. 10.1109/TITS.2020.2976564.

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Abstract

Vehicular networks allow vehicles to share information and are expected to be an integral part of future intelligent transportation systems (ITS). To guide and validate the design process, analytical expressions of key performance metrics such as packet reception probabilities and throughput are necessary, in particular for accident-prone scenarios such as intersections. In this paper, we present a procedure to analytically determine the packet reception probability and throughput of a selected link, taking into account the relative increase in the number of vehicles (i.e., possible interferers) close to an intersection. We consider both slotted Aloha and CSMA/CA MAC protocols, and show how the procedure can be used to model different propagation environments of practical relevance. The procedure is validated for a selected set of case studies at low traffic densities.

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