Clustering and Key Distribution in Vehicular Ad Hoc Network

Vehicular ad hoc networks (VANETs) have highly dynamic topology and the communication methodology is susceptible to several security threats. Therefore, it becomes essential to preserve the security in VANET. The secured VANET should ensure that the data packets are not routed through the malicious vehicles. As the vehicles join or leave the network at any time, all the vehicles change their public parameters that lead to security constraints. Clustering and group key management can tackle these security threats. The group key management scheme improves scalability, reliability, and security of the VANET. Group key management in VANET solves the issues associated with membership changes.

Solution in NS2

Vehicular Adhoc Network is configured with each node as specific role such as vehicle nodes, Centralized Authority (CA), and RSUs. RSU nodes are configured with higher communication range and vehicles are configured with lower communication range. CA is designed with the key management process.
  • Nodes can be clustered based on the region in which it is located and a clusterhead is selected in each region based on the trust value of the nodes.

  • Overhead due to clustering scheme and security enforcement can be obtained from tracefile.

  • Scalability of the scheme can be evaluated by varying the number of nodes involved in the network.

Related Titles:

  • Ameneh Daeinabi, Akbar Ghaffarpour Rahbar “An advanced security scheme based on clustering and key distribution in vehicular ad-hoc networks” 2013 Elsevier