Abstract
With the growing popularity of the Internet-of-Vehicles (IoV), it is of pressing necessity to understand transportation traffic patterns and their impact on wireless network designs and operations. Vehicular mobility patterns and traffic models are the keys to assisting a wide range of analyses and simulations in these applications. This study surveys the status quo of vehicular mobility models, with a focus on recent advances in the last decade. To provide a comprehensive and systematic review, the study first puts forth a requirement-model-application framework in the IoV or general communication and transportation networks. Existing vehicular mobility models are categorized into vehicular distribution, vehicular traffic, and driving behavior models. Such categorization has a particular emphasis on the random patterns of vehicles in space, traffic flow models aligned to road maps, and individuals’ driving behaviors (e.g., lane-changing and car-following). The different categories of the models are applied to various application scenarios, including underlying network connectivity analysis, off-line network optimization, online network functionality, and real-time autonomous driving. Finally, several important research opportunities arise and deserve continuing research efforts, such as holistic designs of deep learning platforms which take the model parameters of vehicular mobility as input features, qualification of vehicular mobility models in terms of representativeness and completeness, and new hybrid models incorporating different categories of vehicular mobility models to improve the representativeness and completeness.
Original language | English |
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Article number | 211301 |
Number of pages | 42 |
Journal | Science China Information Sciences |
Volume | 65 |
Issue number | 11 |
DOIs | |
Publication status | Published - 25 Oct 2022 |
MoE publication type | A2 Review article in a scientific journal |
Funding
The work was supported by Joint Funds for Regional Innovation and Development of National Natural Science Foundation of China (Grant No. U21A20449), National Natural Science Foundation of China (Grant No. 61971066), National Youth Top-notch Talent Support Program, and Major Key Project of PCL (Grant No. PCL2021A15).
Keywords
- deep learning
- Internet-of-Vehicles (IoV)
- machine learning
- spatial point process
- traffic flow
- trajectory prediction
- vehicular mobility pattern