FLaRA: A Simple Facilities Layer Resource Allocator.

While today only a small fraction of vehicles is equipped with communication technology, this will hopefully change in the near future. But when market penetration rates increase, so will the load in the allocated frequency spectrum. Therefore, Decentralised Congestion Control mechanisms have been developed to limit the channel load and are mandatory in Europe. When one vehicle hosts multiple services, each of which regularly needs to transmit messages, those mechanisms are not appropriate to distribute available resources among them as this can lead to the complete starvation of low priority services. Therefore, an additional entity located in the Facilities Layer is required. This paper introduces a Weighted Fair Queuing-based approach to such a resource allocator. An extensive simulation study analyses its performance and shows how it is able to fairly allocate resources according to the services' weights and completely mitigates the starvation issue.