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arXiv 1802.08463cs.NI
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支持多RAT以改善V2X通信

Multi-RATs Support to Improve V2X Communication

Ji Lianghai, Andreas Weinand, Bin Han, Hans D. Schotten

摘要:

由于下一代无线系统的目标是提供具有不同QoS要求的更广泛的服务,因此第五代(5G)网络将实现新的应用。在新兴应用中,车联网(V2X)通信是5G的一个重要用例,旨在提高交通安全和交通效率。由于V2X通信需要低的端到端(E2 E)延迟和超高的可靠性,传统蜂窝网络无法满足服务要求。在这项工作中,我们检查了应用LTE-Uu和PC 5接口以实现V2X通信的系统性能。使用LTE-Uu接口,一个V2X数据包通过蜂窝网络基础设施传输,而PC 5接口促进直接V2X通信,而不涉及用户平面中的网络基础设施。此外,由于高可靠性要求,单一V2X传输技术的应用在某些场景下无法满足目标。因此,我们还提出了一种多无线电接入技术(multi-RAT)方案,其中数据分组通过LTE-Uu和PC 5接口两者行进以获得分集增益。最后但并非最不重要的是,为了获得系统的性能,在这项工作中实现了系统级仿真器。数值结果为我们提供了关于不同技术在不同场景下的表现的见解,并验证了所提出的多RAT方案。

英文摘要:

As the next generation of wireless system targets at providing a wider range of services with divergent QoS requirements, new applications will be enabled by the fifth generation (5G) network. Among the emerging applications, vehicle-to-everything (V2X) communication is an important use case targeted by 5G to enable an improved traffic safety and traffic efficiency. Since the V2X communication requires a low end-to-end (E2E) latency and an ultra-high reliability, the legacy cellular networks can not meet the service requirement. In this work, we inspect on the system performance of applying the LTE-Uu and PC5 interfaces to enable the V2X communication. With the LTE-Uu interface, one V2X data packet is transmitted through the cellular network infrastructure, while the PC5 interface facilitates the direct V2X communication without involving the network infrastructure in user-plane. In addition, due to the high reliability requirement, the application of a single V2X transmission technology can not meet the targets in some scenarios. Therefore, we also propose a multi-radio access technologies (multi-RATs) scheme where the data packet travels through both the LTE-Uu and PC5 interfaces to obtain a diversity gain. Last but not least, in order to derive the system performance, a system level simulator is implemented in this work. The numerical results provide us insights on how the different technologies will perform in different scenarios and also validate the proposed multi-RATs scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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