Platoon management with cooperative adaptive cruise control enabled by VANET

Abstract

TitlePlatoon management with cooperative adaptive cruise control enabled by VANET AbstractPrevious studies have shown the ability of vehicle platooning to improve highway safety and throughput. With Vehicular Ad-hoc Network (VANET) and Cooperative Adaptive Cruise Control (CACC) system, vehicle platooning with small headway becomes feasible. In this paper, we developed a platoon management protocol for CACC vehicles based on wireless communication through VANET. This protocol includes three basic platooning maneuvers and a set of micro-commands to accomplish these maneuvers. Various platooning operations such as vehicle entry and vehicle (including platoon leader) leaving can be captured by these basic platoon maneuvers. The protocol operation is described in detail using various Finite State Machines (FSM), and can be applied in collaborative driving and intelligent highway systems. This protocol is implemented in an integrated simulation platform, VENTOS, which is developed based on SUMO and OMNET++. The validity and effectiveness of our approach is shown by means of simulations, and different platooning setting are calibrated.

Security vulnerabilities of connected vehicle streams and their impact on cooperative driving

“…ith vehicle receives information embedded in beacon messages from (i−1)th vehicle using V2V wireless communication, and feeds it into the longitudinal control system to maintaining a safe gap from the preceding vehicle. Longitudinal control system in each vehicle is typically designed as a hierarchical two-level controller [2] . Fig.…”

“…The vehicles then utilize the speed, position, acceleration and other information embedded in these beacon messages to achieve a distributed longitudinal control. Details on the CACC control design are discussed in [2].…”

“…While these ambitious forward-looking projects are currently in the proofof-concept stage, lower levels of function-specific automation like Cruise Control (CC), and combined function automation 2 such as ACC (Adaptive Cruise Control) are already finding their way into deployment in certain high-end automobiles. CACC (Cooperative Adaptive Cruise Control) is an extension to the ACC that leverages inter-vehicle communications to create tightly-coupled vehicle stream [2].…”

Vehicular Visible Light Communications

“…In the vehicular platoon, inter-vehicular space gap is less than 15 m at vehicle speeds less than 100 km/h [21]. On the other hand, VLC communication range has been demonstrated to be 100 m for headlights and 30 m for taillights [15].…”

“…However, utilizing only VLC in vehicle platoon may degrade communication, since VLC is sensitive to environmental effects, i.e., fog, and might have short-term unreachability due to the increase in the inter-vehicle distance and/or LoS on a curvy road. Thus, IEEE 802.11p and VLC hybrid architectures are proposed to provide redundancy for better reliability in vehicular platoons [21][22][23][24].…”