In Wireless Sensor Networks, energy consumption is a critical issue compared with other parameter. Minimum Energy consumption is achieved by the duty cycled in the network. The concept of a low duty cycle is representing as a periodic wake-up scheme. If the nodes residual energy is higher than the threshold value the node act as a parent node and it creates the leaf node during the transmission finally forwards the packets based on the energy level in the node. If the nodes residual energy is lower than the threshold value the node act as a child node, which is, enter the sleep mode. After finishing the sleep period it will wake up and check the channel if any transmission is there. If packet is to be transmitting or receiving, the nodes forward the packet otherwise again go to the sleep state. In AODV, protocol has the highest energy consumption than the Modified AODV protocol. Simulation results show that Modified AODV provides better performance in terms of energy, packet delivery ratio and packet loss.
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