This paper is focused on the evaluation of two extensively used routing protocols AODV and AOMDV for mobile ad hoc network. In this paper, we have considered two experiments to compare the performance measures of AODV and AOMDV rigorously in view with the energy as constraint. The objective was to measure the life time of route, end-to-end delay, throughput, energy consumption versus pause time and packet delivery fraction in single path environment and multipath environment with and without

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... rgy field in the dynamic and reactive routing protocol. These all criteria are chosen as to measure overall performance of both reactive routing protocols and to observe the research opportunity by improving existing routing protocol.