Abstract
System detects the routing misbehavior in MANETs (Mobile Ad Hoc Networks). Commonly routing protocols for MANETs are designed based on the assumption that all participating nodes are fully cooperative. Node misbehaviors take place, due to the open structure and scarcely available battery-based energy. One such routing misbehavior is that some selfish nodes will participate in the route discovery and maintenance processes but refuses to forward data packets or delay of packets. Here we proposed the 2ACK scheme that serves as an add-on technique for routing schemes to detect routing misbehavior and to moderate their undesirable effect. The main idea of the 2ACK scheme is to send two-hop acknowledgment packets in the opposite direction of the routing path. In order to reduce additional routing overhead, only a fraction of the received data packets are acknowledged in the 2ACK scheme. Thus it detects the misbehaving nodes, eliminate them and choose the other path for transmitting the data. The proposed systems consist of multicasting method. So that the sender can broadcast to the other nodes about the misbehaving nodes. Therefore other nodes can avoid that path and take an another path for the data transmission.
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