A Different Perspective in Routing for VANETs

摘要

Traditional routing approaches in VANETs use vehicular to vehicular (V2V) communication. Currently the state of the art shows that using only V2V communication has limitations to face the high mobility and intermittent connections in VANETs. Furthermore, those approaches can be used only in relatively small areas. In this sense, using mobile or fixed nodes to assist the routing process has the potential not only to improve the routing performance, instead to increase the network scalability and access to the cloud and internet. On the other hand, position-based routing has shown to be the most suitable strategy to face the high mobility. This paper, presents a new research direction on 3D-routing for VANETs, in particular, it is focused on position-based routing assisted by mobile or fixed nodes such as Unmanned Aerial Vehicles (UAVs), Road Side Units (RSUs), Mobile Gateways (MGs) or Base Stations (BSs), which perform specific functions to improve the routing performance.