A Comprehensive Reputation System to Improve the Security of Opportunistic Routing Protocols in Wireless Networks

Addressing the reliability and security of communications are of the most important challenges in wireless networks. Opportunistic Routing (OR) protocols assist in improving the reliability of routing whereas trust and reputation management protocols aim to improve the security. In this paper, a new comprehensive reputation system is proposed which benefits not only from the reliability of OR protocols but also from the security enhancements of reputation systems. The proposed model utilizes experience-based (direct) reputation resulting from direct interactions between nodes as well as recommendation-based (indirect) reputation. Conducted experimental results verify the performance of the introduced approach in delivering packets to their destination while malicious nodes try to attack the network.