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Tsinghua Science and Technology 2020, 25(1): 127-139 https://doi.org/10.26599/TST.2018.9010143
Open Access | Issue | Published: 22 July 2019

Collision Avoidance Strategy Supported by LTE-V-Based Vehicle Automation and Communication Systems for Car Following

Show Author's Information Jiayang Li,  Yi Zhang( ),  Mengkai Shi,  Qi Liu,  Yi Chen
Department of Mathematics, Tsinghua University, Beijing 100084, China.
Beijing National Research Center for Information Science and Technology (BNRist), Department of Automation, Tsinghua University, Beijing 100084, China
Tsinghua-Berkeley Shenzhen Institute (TBSI), Shenzhen 518055, China
Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Nanjing 210096, China.
Beijing Nebula Link Tech. Co. Ltd, Beijing 100080, China.
Network Technology Research Institute, China Unicom, Beijing 100044, China.
Keywords:
vehicle automation and communication, collision avoidance, Long Term Evolution-Vehicle (LTE-V), Responsibility-Sensitive Safety (RSS)
Cite this article:
Li J, Zhang Y, Shi M, et al. Collision Avoidance Strategy Supported by LTE-V-Based Vehicle Automation and Communication Systems for Car Following. Tsinghua Science and Technology, 2020, 25(1): 127-139. https://doi.org/10.26599/TST.2018.9010143
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Abstract Full text About this article

We analyzed and improved a collision avoidance strategy, which was supported by Long Term Evolution-Vehicle (LTE-V)-based Vehicle-to-Vehicle (V2V) communication, for automated vehicles. This work was completed in two steps. In the first step, we analyzed the probability distribution of message transmission time, which was conditional on transmission distance and vehicle density. Our analysis revealed that transmission time exhibited a near-linear increase with distance and density. We also quantified the trade-off between high/low resource reselection probabilities to improve the setting of media access parameters. In the second step, we studied the required safety distance in accordance with the response time, i.e., the transmission time, derived on the basis of a novel concept of Responsibility-Sensitive Safety (RSS). We improved the strategy by considering the uncertainty of response time and its dependence on vehicle distance and density. We performed theoretical analysis and numerical testing to illustrate the effectiveness of the improved robust RSS strategy. Our results enhance the practicability of building driverless highways with special lanes reserved for the exclusive use of LTE-V vehicles.


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About this article

Collision Avoidance Strategy Supported by LTE-V-Based Vehicle Automation and Communication Systems for Car Following

Show Author's information Jiayang Li, Yi Zhang( ), Mengkai Shi, Qi Liu, Yi Chen
Department of Mathematics, Tsinghua University, Beijing 100084, China.
Beijing National Research Center for Information Science and Technology (BNRist), Department of Automation, Tsinghua University, Beijing 100084, China
Tsinghua-Berkeley Shenzhen Institute (TBSI), Shenzhen 518055, China
Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Nanjing 210096, China.
Beijing Nebula Link Tech. Co. Ltd, Beijing 100080, China.
Network Technology Research Institute, China Unicom, Beijing 100044, China.

Abstract

We analyzed and improved a collision avoidance strategy, which was supported by Long Term Evolution-Vehicle (LTE-V)-based Vehicle-to-Vehicle (V2V) communication, for automated vehicles. This work was completed in two steps. In the first step, we analyzed the probability distribution of message transmission time, which was conditional on transmission distance and vehicle density. Our analysis revealed that transmission time exhibited a near-linear increase with distance and density. We also quantified the trade-off between high/low resource reselection probabilities to improve the setting of media access parameters. In the second step, we studied the required safety distance in accordance with the response time, i.e., the transmission time, derived on the basis of a novel concept of Responsibility-Sensitive Safety (RSS). We improved the strategy by considering the uncertainty of response time and its dependence on vehicle distance and density. We performed theoretical analysis and numerical testing to illustrate the effectiveness of the improved robust RSS strategy. Our results enhance the practicability of building driverless highways with special lanes reserved for the exclusive use of LTE-V vehicles.

Keywords: vehicle automation and communication, collision avoidance, Long Term Evolution-Vehicle (LTE-V), Responsibility-Sensitive Safety (RSS)

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Published: 22 July 2019
Issue date: February 2020

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© The author(s) 2020

Acknowledgements

This work was supported in part by the National Natural Science Foundation of China (No. 61673233), Beijing Municipal Science and Technology Program (No. D171100004917001/2), and the Key Technologies Research and Development Program of the Thirteenth Five-Year Plan of China (No. 2018YFB1600600).

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The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).

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