Effect of mobility on trust in mobile ad-hoc network

Abstract

In MANET environment intermediate nodes on a communication path are expected to forward packets of source node towards destination node. This enhances the communication range of mobile nodes beyond their wireless transmission range. From the security point of view a proper mechanism should be there, so that nodes can trust each other for safe delivery of their data. Therefore trust establishment is considered as an important approach to defend safe communication in MANET. In the previous years several trust models have been proposed to enhance the security of mobile ad hoc network. However an important factor, mobility of node, before establishing the trust relationship among nodes is yet not discussed. In this paper trust model is been proposed. In this model the Trustworthiness of each node is calculated with the mobility factor. Minimal configuration, quick deployment and absence of central governing authority make ad hoc networks suitable for emergency situations. Natural disasters, military conflicts are some real life scenarios where trust among nodes is very important. Thus this model will be very effective in these situations. Speed of node is used to decide on the trust value for the trustee node. © 2012 Springer-Verlag GmbH.