Secure and Efficient Distance Effect Routing Algorithm for Mobility (SE_DREAM) in MANETs

The aim of this paper is to provide security against Denial of Service attack for position based routing in MANET. In the position based routing, the message forwarding area is restricted by using the position information of the destination node because routing overhead is lower than ad hoc routing protocols. The presence of misbehaving nodes inside the forwarding zone is the hindrance to provide reliable data transmission. To subdue this, we propose Secure and Efficient Distance Effect Routing Algorithm for Mobility (SE_DREAM). In this protocol, the misbehaving nodes inside the forwarding zone are detected by analyzing the traffic flow between each pair of nodes in the network. If the traffic flow is abnormal, then that node is added into the malicious list. The malicious node is revoked from forwarding zone before forwarding the message towards destination position. The proposed algorithm outperforms existing geographic routing algorithm in the presence of malicious nodes in the network.