International Journal of Engineering and Technology

Mobile Ad hoc Networks (MANETs) are no infrastructure mobile network that relies on the cooperative route dissemination which forwards the packet in short transmission range. This research work involves in increasing the capabilities of node cooperation and message authentication by eliminating the selfish nodes because the selfish nodes are very harmful to mobile ad hoc networks while having communication. Hence, encouraging the reliable cooperation among nodes becomes a very important concern in mobile ad hoc networks. For this purpose, two hop communications are used in MANETs with cooperative communication, message integrity, hop-by-hop authentication. This research work proposes a high secured cooperative trusted communication using Object Link State Routing Protocol (OLSR) and Message Authentication among the nodes in mobile ad hoc network. This protocol establishes a verifiable impression of uniqueness for network traffic enabling hop-by-hop, secured and cooperative communications. The simulation results prove that the proposed scheme improves the throughput and decreasing the delay in packet delivery among trust based cooperative nodes in mobile ad hoc networks. To ensure secured message transmission and integrity of the messages that the Merkle Tree and Hash Chain based message authentication scheme is additionally incorporated for more security.