To enable large-scale and ubiquitous automotive network access, traditional vehicle-to-everything (V2X) technologies are evolving to the Internet of Vehicles (IoV) for increasing demands on emerging advanced vehicular applications, such as intelligent transportation systems (ITS) and autonomous vehicles. In recent years, IoV technologies have been developed and achieved significant progress. However, it is still unclear what is the evolution path and what are the challenges and opportunities brought by IoV. For the aforementioned considerations, this article provides a thorough survey on the historical process and status quo of V2X technologies, as well as demonstration of emerging technology developing directions toward IoV. We first review the early stage when the dedicated short-range communications (DSRC) was issued as an important initial beginning and compared the cellular V2X with IEEE 802.11 V2X communications in terms of both the pros and cons. In addition, considering the advent of big data and cloud-edge regime, we highlight the key technical challenges and pinpoint the opportunities toward the big data-driven IoV and cloud-based IoV, respectively. We believe our comprehensive survey on evolutionary V2X technologies toward IoV can provide beneficial insights and inspirations for both academia and the IoV industry.

中文翻译：

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面向车联网的进化 V2X 技术：挑战与机遇

为了实现大规模和无处不在的汽车网络接入，传统的车联网 (V2X) 技术正在向车联网 (IoV) 演进，以满足对智能交通系统 (ITS) 和自动驾驶等新兴先进车辆应用的日益增长的需求。车辆。近年来，车联网技术得到发展并取得重大进展。然而，目前尚不清楚车联网的演进路径是什么，车联网带来的挑战和机遇是什么。基于上述考虑，本文对 V2X 技术的历史进程和现状进行了深入调查，并展示了新兴技术向车联网发展的方向。我们首先回顾了专用短程通信（DSRC）作为重要的初始开始发布的早期阶段，并从优缺点方面比较了蜂窝 V2X 与 IEEE 802.11 V2X 通信。此外，考虑到大数据和云边缘制度的出现，我们强调了关键的技术挑战，并分别指出了大数据驱动的车联网和基于云的车联网的机遇。我们相信，我们对面向车联网的进化 V2X 技术的全面调查可以为学术界和车联网行业提供有益的见解和启发。我们强调了关键的技术挑战，并分别指出了大数据驱动的车联网和基于云的车联网的机遇。我们相信，我们对面向车联网的进化 V2X 技术的全面调查可以为学术界和车联网行业提供有益的见解和启发。我们强调了关键的技术挑战，并分别指出了大数据驱动的车联网和基于云的车联网的机遇。我们相信，我们对面向车联网的进化 V2X 技术的全面调查可以为学术界和车联网行业提供有益的见解和启发。