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Trust Based Routing in Mobile Ad-Hoc Networks

The rapid growth of mobile computing technology and wireless communication have significantly increased the mobile users worldwide. This fact is the reason for the new applications of mobile ad-hoc network and providing reliable communication services to the users. Due to resource scarcity and dynamic network topology, providing reliable service is difficult. The objective of this work is to explore ad-hoc routing issues in MANET. Routing protocols are vulnerable to routing attacks like packet dropping and delayed packet forwarding. Our proposed scheme considers malicious behavior of nodes which causes significant degradation in network performance. To improve the network performance, our scheme includes trust model based on different statistical parameters with their weightage. Our proposed scheme collects information about node and network state parameters related to network layer. Our scheme is implemented in QualNet simulator with modification in the AODV routing protocol by incorporating the trust model into it. The proposed trust model makes sure to uniformly utilize the network resources to increase network lifetime. Simlulation results shows that our proposed trust model based approach increases network lifetime and improves network performance in presence of malicious activities.