Localized reputation management system in ad hoc network

Abstract

Most of nodes in a mobile ad hoc network use the battery power. This makes the node to hesitate the cooperation in routing and forwarding. However, the per- formance of ad hoc network depends on the cooperation in routing and forwarding. For this reason, some approaches for discouraging the uncooperative behavior were proposed. The key point of the reputation system is fast detection of un- cooperative nodes and complete isolation of detected nodes. But for the complete isolation, existing approaches required large overhead in the reputation management. To reduce this overhead that is necessary for the complete isolation, we propose another reputation management method. Our approach only manages the reputation of neighbor nodes. To compare the performance, our approach was implemented on the Dynamic Source Routing protocol. Our simulations show that the overhead of our system is smaller and the degree of isolation is better, compared with previous approaches.