Misbehavior Node Detection in Vehicular Ad-Hoc Networks: A survey, With Special Emphasis on Multihop Broadcast Protocols

Abstract

VANETs are a subset of Mobile Ad-hoc Networks (MANETs) in which communication nodes are mainly vehicles. Communication in Vehicular ad hoc Network relies on cooperation between vehicles but, a node may behave malicious or selfish in order to get advantage over other vehicles. A misbehaving node may transmit false alerts, tamper messages, create congestion in the network, drop, delay and duplicate packets. Thus, detecting misbehavior in VANET is very crucial and indispensable as it might have disastrous consequences. This paper presents a detailed survey on some of the important research works proposed on detecting misbehavior and malicious nodes in VANETs. In addition to that we emphasis on misbehavior detection in multi hop broadcast protocols because of their importance in information dissemination in VANETs. This paper outlines several research scopes to make VANET more reliable and secure.