Nodes´ misbehavior in Vehicular Delay-Tolerant Networks

Vehicular Delay-Tolerant Networks (VDTNs) are composed of mobile nodes that communicate wirelessly with each other to forward data despite connectivity issues. This paper focuses on the problem of some nodes trying to impair the communication of a VDTN. In the paper we study the case of nodes that delay the forwarding of messages that is a particularly difficult to detect form of misbehavior. We study the impact of this form of misbehavior on eight VDTN routing protocols using a large set of simulations and two scenarios. The results show that depending on the type of misbehavior, message replication and intelligent selection of the next hop can help routing protocols to be resilient to node misbehavior.