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...

Mobile ad hoc networks are temporary networks, with varying network topologies. They communicate beyond transmitter range and are supported by multi hop communication through IP routing. Since Mobile Ad Hoc Network is a roaming network, where the host may be connected through various means to the Internet other than it’s fixed-address domain space, it becomes important for the host to have dyna...