Abstract:As the Wireless Sensor Networks (WSNs) continue to evolve, it becomes more and more significant in day today life. WSN is a promising approach, but finding optimal route discovery is more problematic due to the resource constrains of sensors and the various application requirements. The proposed Optimized Quality of Service based Multipath Routing Protocol (OQoS-MRP) for WSN is designed to find near optimal multi-hop communication path from the sink to sensors by considering various QoS metrics. The best-case multipath route selection procedure is used for transferring the data to sink. According to QoS metrics, the performance of this communication protocol is evaluated and compared with other existing protocols namely EE-LEACH and MRBCH. The simulation result shows that OQoS-MRP achieves prominent data communication while maintaining reasonable energy consumption. It also reduces the transmission delay and communication overhead on the basis of ensuring the outcome of the entire network.