Comparison of Simple Strategies for Vehicular Platooning with Lossy Communication

Marco A. Gordon, Francisco J. Vargas, Andres A. Peters

Research output: Contribution to journalArticlepeer-review

Abstract

This paper studies vehicle platooning with communication channels subject to random data loss. We focus on homogeneous discrete-time platoons in a predecessor-following topology with a constant time headway policy. We assume that each agent in the platoon sends its current position to the immediate follower through a lossy channel modeled as a Bernoulli process. To reduce the negative effects of data loss over the string stability and performance of the platoon, we use simple strategies that modify the measurement, error, and control signals of the feedback control loop, in each vehicle, when a dropout occurs. Such strategies are based on holding the previous value, dropping to zero, or replacing with a prediction based on a simple linear extrapolation. We performed a simulation-based comparison among a set of different strategies, and found that some strategies are favorable in terms of performance, while some others present improvements for string stabilization. These results strongly suggest that proper design of compensation schemes for the communications of interconnected multi-agent systems plays an important role in their performance and their scalability properties.

Original languageEnglish
Article number9493190
Pages (from-to)103996-104010
Number of pages15
JournalIEEE Access
Volume9
DOIs
StatePublished - 2021

Keywords

  • Vehicular platoon control
  • constant time-headway
  • lossy channels
  • networked systems
  • string stability

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