Abstract
<p align="justify"> Identifying trusted nodes for safe communication is a key challenge in mobile ad-hoc networks. Node compromises a service and leads to uncertainty in node behaviour. Computing the node trust and node management will enhance the security aspect in MANETs. This paper proposes a security improvisation based on a Node Trust Prediction Approach (NTPA). NTPA aims to prevent the interference of an anomalous node in a MANET. There by improving the <strong><em>security and data delivery output</em></strong>. The NTPA calculates the node trust prediction by evaluating the four most frequent actions that are performed by a node in the communication process. <em>Node authorization </em>is a key aspect in the evaluation of an ad hoc network’s security. In the proposed method, we monitor the <em>valid</em> and <em>Invalid Authorization </em>of a node. Data delivery reliability is measured with S<em>uccess of Packet delivery </em>and <em>Loss or Drop of packets. </em>In this paper, NTPA is compared with SAR(Security-Aware Routing) and AODV (Adhoc on-Demand Distance Vector), to evaluate the efficiency in an adhoc networks. The empirical results shows that there is an increase of 25% packet delivery and a 40% reduction in routing overhead. <strong></strong></p>
Highlights
A mobile ad-hoc network (MANET) is a network having a number of wireless devices that are proficient in interacting with each other
Due to dynamic environment, sharing of channels and computation constraints, MANETs are more vulnerable to security attacks compared to traditional wireless networks
This constraint poses a great challenge to find a reliable node that acts as a router for secure communication in MANETs
Summary
A mobile ad-hoc network (MANET) is a network having a number of wireless devices that are proficient in interacting with each other. Due to dynamic environment, sharing of channels and computation constraints, MANETs are more vulnerable to security attacks compared to traditional wireless networks. For a possible multi-hop communication among non-adjacent nodes, former nodes must function as routers This constraint poses a great challenge to find a reliable node that acts as a router for secure communication in MANETs. To accomplish benchmark performance in reliable communication, the routing technique must be adaptable to dynamic environmental format. A comprehensive node trust prediction based on "Valid and Invalid Authorization", and "data routing actions" have been carried out to improve the security of MANET by increasing node-level trust characters.
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