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A Mobile ad-hoc network (MANET) is a wireless network, self-configuring, quickly deployable and operates without infrastructure. More focus is towards MANET because of its realistic applications and necessity of communication in mobile devices. Nodes communicate between them without any centralized management and are movable since topology is very vibrant and they have restricted energy and computing resources. Dynamic nature of MANET demands end to end quality of service by upholding connectivity and providing reliable and consistent transmission. Secured transmission enhances the efficiency of real-time applications where MANET is used. Nodes trust and energy levels are to be considered for providing trustworthy transmission. The proposed protocol (TES-AODV) incorporates trust, energy and security management and nodes selected for routing based on its trust and energy values. A threshold value is defined and nodes are ideal for routing only if its trust and energy levels are superior to threshold. The transmissions are made secure by introducing message digest algorithm, MD5 which creates unique signatures for each node that take part in routing thus providing reliability of routing. The work is implemented and simulated on NS-2. The simulation results have shown a good improvement over the quality of service metrics like PDR, Delay, Throughput, Jitter and residual energy. Thus TES-AODV provides more consistent, reliable and secured data transfer compared to general AODV and DSR protocols.

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