Distributed Congestion Control Approaches for the IEEE 802.11p Vehicular Networks

This article surveys a collection of representative congestion control approaches for the IEEE 802.11p vehicular network. Challenges remaining in the current literature are concluded. We then propose a novel distributed multi-priority congestion control method to maximize the transmission opportunities for the highest priority traffics while keeping the collision probability at a low level. Open issues for the future work on the congestion control approach design are drawn at the end of this article.