Mobility-as-a-Service research trends of 5G-based vehicle platooning
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EDITORIAL
Mobility-as-a-Service research trends of 5G-based vehicle platooning Lingling Lv1 · Yanjun Shi1 · Weiming Shen2
© Springer-Verlag London Ltd., part of Springer Nature 2020
1 Introduction Mobility-as-a-Service (MaaS) is often described as a travel payment platform that relies on existing means of transportation, including subways, buses, private cars, shared cars, shared bikes, and tailored mobility solutions catered to users’ travel needs [1, 2]. The uptake of MaaS will save time and cost, reduce congestion and traffic accidents. Previous studies proposed some services of MaaS: (1) customized solutions for individual travelers; (2) publicly commandeered private cars and shared cars for ridesharing; (3) automated vehicle (truck) platoons for transporting goods. According to an Allied Market Research report [3], the global truck platooning market size is projected to reach 4.59 billion US dollars by 2025. This short article discusses some MaaS research trends of vehicle platooning with 5G technologies. High-speed compact vehicle platoons can lead to higher road capacity, reduced fuel consumption and improved air quality than driving individually [4]. Wireless communication technologies (such as DSRC) can help platoons improve traffic safety and increase traffic flow throughput. With onboard units (OBU), connected and automated vehicles (CAVs) can reduce the driver’s perception-reaction time and improve safety. With the help of vehicular communication, CAVs can collect information from other vehicles and roadside units (RSUs) and coordinate with other CAVs to control and manage the platoon, such as merge, split, and maintain a particular gap. The on-going development of OBU, RSU, etc., enables and enhances the MaaS of vehicle platooning. Existing platoon-oriented CAVs have some limitations on onboard computation, sensor integration, and Vehicle-toeverything (V2X) communication, which cannot be managed by today’s mobile communication infrastructures. 5G net-
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Weiming Shen [email protected]
1
School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
2
State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
works are expected to overcome these limitations. For example, 5G networks support multiple network slices, including enhanced mobile broadband (eMBB), massive machine-type communications (mMTC) and ultra-reliable low-latency communications (URLLC) to ensure the quality of service (QoS). URLLC guarantees safety for automated vehicles [5]. eMBB and URLLC can provide delay-sensitive services when massive vehicles are connected. Speed adjustments in a platoon can be made cooperatively through a 5G network. Vehicles share their kinematic information in real-time and negotiate speed adjustments to ensure efficient platooning formation and safety.
2 MaaS trends of platooning This article proposes a MaaS architecture in 5G V2X networks (shown in Fig. 1) with some key technologies on MaaS for platooning
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