Improving the performance of Mobile Ad hoc Network (MANET) routing protocols under highly mobile time sensitive communication scenario, like a military rescue operation, is a complex task since it reaches its optimum level of performance only after sometime. Our work proposes a modified version of AODV termed as AODV_HPR where certain nodes are assumed to be high energy transmission nodes known as High Power Routing (HPR) nodes, utilized for routing. The route is established only through HPR nodes which are capable of communicating to long distance. The simulation is performed in NS2 under varied node density with 50 percent HPR nodes and the results are compared with DSDV and AODV. The proposed AODV_HPR provided significant improvement in throughput and Packet Delivery Fraction (PDF) and significant reduction in dropped packets, end-to-end delay, MAC Load, routing load, energy consumption and overhead than conventional AODV.
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