Mobile ad hoc networks are collection of mobile devices connected by wireless links to perform some computational tasks. This temporary arrangement does not have any infrastructure hence lacking in permanent source of energy. To fulfill this requirement these independent mobile devices are entirely dependent on battery power. The aim of this paper is to design and evaluate the performance of an energy aware routing protocol, called MECB-AODV (Modified Energy Constraint Protocol Based on AODV) which is derived from AODV protocol. This protocol is based on the remaining energy of intermediate nodes to maintain the connectivity of the network as long as possible. The consequences obtained using the Network Simulator NS-2 demonstrates how little changes in the principle of the AODV protocol can competently balance the energy utilization among mobile devices of the network which increases the network lifetime as well as increases the throughput.
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