International Association of Engineers
In MANETs (Mobile Ad-hoc NETworks) there is no pre-existing communication infrastructure. Beside the node formation they also formed on the basis of bandwidth, storage space and battery power. It has been assumed that all the nodes will cooperate in Packet Forwarding. But in commercial and civilian applications this is not assumed. MANETs are affected by Denial of Service Attacks (DoS Attacks). So it is very necessary to provide certain mechanisms to preserve the cooperation between different nodes so that network performance should remain boosted up. The main aim of this Research Paper is to discuss all the detection and prevention methods of preventing MANETs from DoS attacks.