Recouping Efficient Safety Distance in IoV-Enhanced Transportation Systems

Kai Xiong, Supeng Leng, Jianhua He, Fan Wu, Qing Wang

Research output: Chapter in Book/Published conference outputConference publication


Internet-of-Vehicles (IoV) has the potentials of enhancing automatic driving in various transportation environment. However, there is very little investigation on quantifying the potential influence of automatic driving applications with the road efficiency in IoV. This paper studies the connection of safety distance to the road congestion under different IoV resource conditions. We propose an elastic wave equation model to reveal the relation between safety distance and road congestion. It can be found that the propagation speed of road congestion is largely affected by the safety distance. To recoup the efficient road safety and alleviate road congestion, an optimization problem is formulated with cooperative communication and computing via platoons that aims to minimize the total safety distance. Since the optimization is a complicated 0–1 programming problem, we propose a practical resource allocation algorithm and solve the problem through Lagrangian relaxation. Simulation experiments show that the proposed algorithm leads to near-optimal results with low complexity but no overhead of vehicular information exchange.
Original languageEnglish
Title of host publication2019 IEEE International Conference on Communications, ICC 2019 - Proceedings
Number of pages6
ISBN (Electronic)978-1-5386-8088-9
ISBN (Print) 978-1-5386-8089-6
Publication statusPublished - 1 May 2019
EventICC 2019 - 2019 IEEE International Conference on Communications (ICC) - Shanghai, China
Duration: 20 May 201924 May 2019

Publication series

ISSN (Print)1550-3607
ISSN (Electronic)1938-1883


ConferenceICC 2019 - 2019 IEEE International Conference on Communications (ICC)

Bibliographical note

Funding: European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 824019.


  • Internet of vehicles
  • IoV
  • elastic wave equation
  • road traffic congestion
  • safety distance


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