Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Routing in an mobile ad-hoc network (MANET) is an active research area in recent years. It still faces challenges such as limited physical security, node mobility, and limited resources such as bandwidth and storage. Trust plays a growing role if security in an open environment where unknown devices can join or leave the system at any time. In this paper, a suite of efficient secure routing protocol referred as Dynamic-trust model is developed, which will be based on the trust level of individual nodes within the ad-hoc network. The design of routing protocols for mobile ad-hoc networks rarely contemplates in most hostile environments. Consequently, it is common to add security extensions afterwards. One feasible way to minimize the threats is to evaluate the trust and reputation of the interacting neighbors. Many trust models have done so, but they fail to properly evaluate trust when malicious agents start to behave in an unpredictable way. Moreover, these models are ineffective in providing quick response to a malicious node's oscillating behavior. In this dynamic-trust model, security is inherently built into the routing protocol where each node evaluates the trust level of its neighbors based on a set of attributes. A secure route is established based on a confidence level prescribed by a user in terms of these attributes. Analytical and simulation results are presented to evaluate the performance of the proposed scheme. © Dynamic Publishers, Inc.

School of Computer Science and Engineering

Chennai Campus

World University root node

Neural, Parallel and Scientific Computations

Dynamic-trust model for monitoring malicious node oscillating behavior in MANET using satisfaction and feedback credibility

Sensor networks are highly distributed networks of small and lightweight wireless nodes. In Wireless sensor networks, nodes have limited energy resources and, consequently, protocols designed for sensor networks should be energy-efficient. The decrease of the received power at the receiving nodes increases the probability of bit error and of packet loss. Alternatively, the sender nodes can use larger transmission power for the same probability of bit error, thus increasing the energy consumption. This allows the sensor to use more energy and the transmission that maximizes the energy consumption and decreases the transmission reliability. We model a cluster based approach to minimize the energy consumption by the cluster establishment and thereby increasing the reliability of packet delivery. © 2012 Pillay Engineering College.