Fuzzy based trust evaluation model for enhancing security in MANETs

Abstract

Due to decentralized, self organized and open nature of mobile ad-hoc networks, nodes are vulnerable to various kinds of attacks. The successful data transmission in such type of networks depends upon the cooperation among the nodes. The cooperation can be achieved using trust information of the nodes. In this paper, a fuzzy logic based trust model is proposed and implemented to mitigate the effects of vampire attack. A single vampire attack can significantly exhaust the resources of a network such as battery power etc. The performance of the proposed work is measured using three performance criterions such as precision, recall and communication overhead.