International Journal of Research and Development in Engineering Sciences https://www.ijrdes.com Satish Dekka 2 3 (May - June) 2020 05 May-June enWireless Sensor Network (WSN)Energy EfficiencyClusteringRouting ProtocolsNetwork LifetimePower Optimization Wireless Sensor Networks WSNs consist of numerous sensor nodes that operate collaboratively to monitor and transmit environmental or structural data However due to their limited power supply and computational capacity energy efficiency remains one of the most critical challenges in WSN design This paper presents the development of a powerefficient mechanism aimed at extending the network lifetime while maintaining reliable data transmission The proposed approach focuses on optimizing energy consumption through techniques such as efficient clustering adaptive routing and dynamic duty cycling By intelligently selecting cluster heads and minimizing redundant data transmission the system significantly reduces overall energy usage Simulation results demonstrate that the proposed mechanism achieves improved energy balance among nodes lower packet loss and enhanced network stability compared to conventional protocols This study provides an effective framework for building sustainable WSNs suitable for various applications including environmental monitoring industrial automation and smart city systems Copyright (c) 2026 International Journal of Research and Development in Engineering Sciences. All rights reserved. 2020 All Rights Reserved