Lightweight trust propagation scheme for resource constraint mobile ad-hoc networks (MANETs)

This work presents a new lightweight trust propagation scheme in an ad hoc network. To accommodate the new nodes in subgroups, lightweight vibration mechanism is integrated. This vibration mechanism help to accumulate trust based on health score. This accumulation is further lightened using four lightweight strategies: lightweight or ultra lightweight vibration mechanism, lightweight trust computation, lightweight key management and lightweight subgroup formation. In continuation, analysis of trust evaluation against different attacks is also presented. Simulation shows that the proposed system can improve the network performance as well as effectively provide protection against various attacks.