DELAY TOLERANT ROUTING IN SPARSE VEHICULAR AD HOC NETWORKS
Jani Kurhinen, Jukka Janatuinen · 2008
Low density of network nodes in Vehicular Ad Hoc Networks (VANETs) outside the rush hours and in peripheral areas limits usability of traditional ad hoc networking, which requires end-to-end connectivity between communicating parties. In this article, we survey how usability of vehicular networks could be escalated with delay-tolerant networking, in which vehicles store and carry network data while waiting opportunities to forward it. With delay-tolerant networking applications are able to get eventual data delivery even in sparse networks. We address the routing problem in delay-tolerant vehicular networks and introduce a novel geographical routing scheme, which is based on movement predictions. As our simulations show, the presented protocol attains efficient results even in sparse networks.