A Controller for Network-Assisted CACC based Platooning

TL;DR

This paper presents a network-aware controller for vehicle platooning that maintains stability over wireless protocols like DSRC and LTE-V2V despite communication uncertainties, using SUMO simulations.

Contribution

It introduces a novel controller design that ensures platoon stability under communication uncertainties for DSRC and LTE-V2V protocols.

Findings

Controller maintains platoon stability in most scenarios.

Communication message loss can lead to collisions.

Identifies bottlenecks in wireless vehicle communication.

Abstract

Platooning involves a set of vehicles moving in a cooperative fashion at equal inter-vehicular distances. Taking advantage of wireless communication technology, this paper aims to show the impact of network protocols on a platoon using a controller, based on the Cooperative Adaptive Cruise Control (CACC) principles. The network protocols used in this work are DSRC (Dedicated Short Range Communication) and LTE-V2V sidelink (Mode 4). The main focus of this work is to showcase the ability of the controller to maintain platoon stability despite having uncertainties in both, the platoon and the message delivery rates over the network protocols. The controller interacts with all vehicles using messages transmitted over the network protocols. The controller is designed to be responsible for micro-managing every vehicle in the platoon and to ensure that the platoon does not break under any circumstances. SUMO (Simulation of Urban MObility) is used as the simulation platform. Results indicate, that the controller manages to achieve platoon stability in all scenarios, unless a set number of consecutive messages are not transmitted, in which case it leads to collisions. This work also presents certain bottlenecks pertaining to wireless communication with vehicles.