Abstract
Security plays a vital role in communication networks. Since the nodes are mobile in mobile ad hoc networks (MANET), they are vulnerable to different types of attacks. Because of its mobility nature, any node can enter the network at any time based on the coverage of the network. No centralized mechanism is found to verify or authenticate the nodes that are arriving/leaving the network. An algorithm is proposed for secure communication between source and destination based on the QoS parameters is called modified device key generation algorithm (MDKGA). This algorithm elects an agent node based on the QoS parameters. Agent node is responsible for secure key generation and distribution of keys among the nodes. The neighboring node selection is based on trust value which acts as a heuristic function to select the node using A* algorithm. Various performance metrics are also analyzed. Comparison study has been carried out between the protocols of MANET.
Highlights
Mobile Ad-hoc Networks employs a major part in wireless communication
[3] A scheme against chosen Cipher Text Attack (CCA) was proposed to enhance the security with less communication overhead to apply to massive scale Mobile Ad-hoc Networks (MANET) and to increase performance metric with less cost overhead
[4] A method which used Markov-chain model for analysis, evaluation of the OCSP-based model for certificates within the hybrid MANETs and the outcomes of absorbing Markov fashions are verified via the widespread simulations of the ADOPT and PS-ADOPT protocols in the OMNET++ simulator. [5] proposed Flooding Factor Framework for Trust Management (F3TM) in MANETs to be aware of attacker nodes based on the trust values calculated
Summary
Mobile Ad-hoc Networks employs a major part in wireless communication. This acts as a base for Vehicular communication. Since the nodes are mobile, there is a high level of chance that attacker node joins the network and slows down or corrupt the entire communication. Due to the lack of centralized authority to track the in and out nodes of the network, the MANET is highly prone to the network attacks. Based on the characteristics the node will be identified as attacker node or not. A Key based communication within the network and measuring metrics for analyzing the performance of the network are proposed. The proposed MDKGA prevents the attacker nodes to join the network without compromising the performance of the network. Trust value is calculated based on node’s behavior over n number of simulations
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