Extending vehicular CAN fieldbuses with delay-tolerant networks

In this paper, we propose and evaluate the possibility of extending vehicular controller-area network (CAN) fieldbuses with delay-tolerant networks (DTNs) based on the multihop car2car (C2C) or vehicle2vehicle-paradigm. Previous research has focused on single-hop wireless communications, which are inadequate in many real-life scenarios [1]. We demonstrate that efficient network layers, such as DTNs, are necessary to overcome those limitations. As a proof of concept, we present a working prototype of a system that extends the standard diagnostics interface of a CAN bus.