In this paper, we propose a new reputation approach, called I-WD (improved WatchDog). We attempt to eliminate selective dropping attack that ensue when malicious nodes drop packets at low rates damage the network without been detected. The proposed approach is structured around four modules. monitoring module overhears forwarding activities of neighboring using promiscuous mode. evaluates value...

The emergence of Vehicle Ad hoc Networks (VANET) in 2003 has brought about a significant advancement mobile phone networks and VANETs enable cars on the road to communicate with each other infrastructure street through set sensors Intelligent Transport Systems (ITS). However are low-level trust environment, making them vulnerable misbehavior attacks abnormal use. Thus, it is crucial ensure that...

A Vehicular Ad hoc Network (VANET) consists of vehicles which communicate with each other and exchange data via wireless communication links available between the vehicles which are in communication ranges of vehicles to improve the road safety in city. The communication between vehicles is used to provide road safety, comfort and entertainment. The performance of communication depends on how b...

Few real-world applications of mobile ad hoc networks have been developed or deployed outside the military environment, and no traces of actual node movement in a real ad hoc network have been available. In this paper, we propose a novel commercial application of ad hoc networking, we describe and evaluate a multitier ad hoc network architecture and routing protocol for this system, and we docu...