Secure Routing in Vehicular Ad Hoc Networks

The self-organized nature, the high mobility of vehicles, dependency of vehicles on geographic location, lack of security mechanisms and the irregular connectivity between vehicles can lead to several issues in security of VANETs. The malicious nodes in the vehicular ad hoc network aim at jeopardizing the delivery of messages. Compromised vehicles can severely degrade the routing performance of the network by performing several malicious activities such as selectively dropping messages, and manipulating the messages. The basic solution to tackle with these attacks is based on the notion of watchdog nodes (guard nodes) that assists in the data packet forwarding process in the presence of malicious nodes in the network. The secondary solution for dealing with these attacks is based on the beacon-less routing algorithm that can be embedded in the vehicular routing protocols.

NS2 Solution

  • Data Transmission is established in the network environment that contains attacker nodes that are modeled to drop the packet.

  • Guard nodes are configured to perform the seamless data transmission on the observation packet dropping activity of the attacker.

  • Packet loss can be reduced due to the usage of guard nodes. Packet delivery ratio is improved and end-to-end delay is reduced caused by the retransmission of data over alternative path.

Related Titles:

  • Juan A. Martinez, Daniel Vigueras, Francisco J. Ros, and Pedro M. Ruiz “Evaluation of the Use of Guard Nodes for Securing the Routing in VANETs” JOURNAL OF COMMUNICATIONS AND NETWORKS, VOL. 15, NO. 2, APRIL 2013.