Monali Darshan Joshi and Manivel Kandasamy 2026. Enhanced Wireless Sensor Network Lifetime with Optimized Multi-hop Clustering in LEACH Protocol Using WOA and Reinforcement Learning. International Journal of Computer Information Systems and Industrial Management Applications. 18, (Jun. 2026), 17. DOI:https://doi.org/10.70917/ijcisim-2026-2041.