论文标题
IEEE 802.11p和Sidelink C-V2X中的拥塞控制机制
Congestion Control Mechanisms in IEEE 802.11p and Sidelink C-V2X
论文作者
论文摘要
预计连接的车辆将在下一个将来发挥重要作用，以提高道路上的安全性和交通效率，并且已经定义了短期技术以实现直接交换信息。为此，目前有两种解决方案是一场辩论的主题，该辩论超出了技术人员，即IEEE 802.11p和Sidelink Cellular-pehilect-to-thingthing（C-V2X）。测试并成熟进行部署，第一个可能更有效。在这两种情况下，主要方面之一是渠道拥塞的管理，这可能会造成严重的数据包损失，并对应用程序的可靠性产生关键影响。可以通过不同的方法来管理拥塞，包括控制传输功率，数据包生成频率以及所采用的调制和编码方案。拥堵管理在IEEE 802.11p中进行了很好的研究，标准中包含合并的算法，而在某种程度上看来，它是一个新主题，以查看C-V2X。在这项工作中，提供了对主要拥塞控制机制的综述，并讨论了它们在两种技术中的适用性和效率。该主题是在不关注特定算法的情况下解决的，目的是提供一般准则作为新建议的起点。
Connected vehicles are expected to play a major role in the next future to improve safety and traffic efficiency on the road and short-range technologies have been defined to enable the direct exchange of information. To this aim, two solutions are currently the subject of a debate that goes beyond the technician, i.e., IEEE 802.11p and sidelink cellular-vehicle-to-anything (C-V2X). Tested and mature for deployment the first, possibly more efficient the second. In both cases, one of the main aspects is the management of channel congestions, which can cause serious packet losses and have a critical impact on the reliability of applications. Congestions can be managed through different approaches, including the control of transmission power, packet generation frequency, and the adopted modulation and coding scheme. Congestion management has been well studied in IEEE 802.11p, with consolidated algorithms included in the standards, whereas it appears somehow as a new topic looking at C-V2X. In this work, a review of the main congestion control mechanisms and a discussion of their applicability and efficiency in the two technologies is provided. This topic is addressed without focusing on specific algorithms and with the aim to provide general guidelines as a starting point for new proposals.
