K. Chandramohan ¹, P. Kamalakkannan ²

Affiliations
1 Department of Computer Science and Engineering, Gnanamani College of Engineering, Namakkal - 637018, Tamil Nadu, IN
2 Department of Computer Science, A. A. Government Arts College, Namakkal - 637002, Tamil Nadu, IN

Abstract

Objectives: This paper proposes a novel method to addresses the problem of detecting and correcting collision attack in VANET and enhances the security of the nodes. Methods: The proposed Collision detection-based neighbor discovery model uses local monitoring to observe the behavior of neighborhood node. The collision detection is then shared with the immediate neighbors using warning message and propagated to a neighboring region with aiming at improving the broadcasting rate. In addition, proposed NDA-CDS uses Aloha-based Collision Correction which enables a randomized model that provides redundant information, allowing each individual node to process data packet using time slots to reduce time delay in correcting the colliding nodes which in turn maximizes the security of the nodes. The results are simulated in NS2 with each data packet size is differing from 7-49 byte. Findings: The NDA-CDC framework based on their immediate neighbors enhances the security of the nodes (i.e., vehicles) and reduces the delay time for detecting collision attack. The experimental results demonstrated that the proposed NDA-CDS model out performed than the existing state of the art works in terms broadcast rate, security and delay time for detecting and correcting collision. Improvement: The simulation result shows that proposed NDA-CDS method has advantages over the other existing system in terms of reducing the delay time for detecting collision attack and improving the security.

Keywords

Aloha-Based Collision Correction, Collision Attack, Message Authentication Protocol, Mix-Zone, Neighbor Discovery, Vehicular Ad Hoc Network

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K. Munusamy ¹, R. M. S. Parvathi ², K. Chandramohan ³

Affiliations
1 Bharathiyar University, Coimbatore - 641046, Tamil Nadu, IN
2 Sengunthar College of Engineering, Tiruchengode - 637205, Tamil Nadu, IN
3 Department of CSE, Gnanamani College of Technology, Namakkal - 637018, Tamil Nadu, IN

Abstract

Background/Objectives: To develop a Least-Power Adaptive Hierarchy Cluster (LPAHC) framework which combines the energy-efficient cluster-based routing and improve network lifetime based on Channel State Information (CSI). Methods/Statistical analysis: initially, the LPAHC framework obtained the CSI using the Frequency Division Multiplexing (FDM-based) Channelization technique. The FDM-based Channelization technique is applied with the objective of reducing the average energy cost adopts frequency bands to assign channel for each sensor nodes based on the traffic patterns. Then, based on the frequency bands assigned, the selection of cluster head is made by applying Adaptive Hierarchy Cluster with aiming at improving the network lifetime. Finally, communication between sensor nodes is made in an effective manner using Received Signal Indicator (RSI) from the cluster head. Findings: The experimental evaluation of energy efficient framework using LPAHC in WSN is measured in terms of density of sensors, energy consumption, network lifetime average energy cost and average delay time consumption. Application/Improvements: Compared to the tradition energy efficient frameworks in WSN, LPAHC framework is able to reduce the energy consumption for data communication between sensor nodes and reduce the average energy cost.

Keywords

Communication Protocols, Channelization, Channel State Information, Hierarchy Cluster, Received Signal Indicator

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