Vehicle-to-Everything (V2X) creates many new opportunities in the area of wireless communications, while its feasibility on enabling vehicular positioning (VP) has not been fully explored despite its importance for autonomous driving. This article aims at investigating whether V2X can help VP from different perspectives. We first explain V2X's critical advantages over other technologies (e.g., GPS, RADAR, LIDAR, and camera) and suggest new scenarios of V2X-based VP. Then, we review the state-of-the-art positioning techniques discussed in different standardizations and point out their limitations. Lastly, some promising research directions for V2X-based VP are presented, which contribute to realizing fully autonomous driving by overcoming the current obstacles.

中文翻译：

---

基于V2X的车辆定位：机遇，挑战和未来方向

车载到一切（V2X）在无线通信领域创造了许多新的机会，尽管其对自动驾驶的重要性也未充分探讨其实现车载定位（VP）的可行性。本文旨在从不同的角度研究V2X是否可以帮助VP。我们首先说明V2X与其他技术（例如GPS，RADAR，LIDAR和相机）相比的关键优势，并提出基于V2X的VP的新方案。然后，我们回顾了在不同标准化中讨论的最新定位技术，并指出了它们的局限性。最后，提出了一些基于V2X的VP的有前途的研究方向，它们通过克服当前的障碍为实现全自动驾驶做出了贡献。