Energy is a crucial factor for Wireless Sensor Network (WSN) reliant applications that are dependent on the Internet of Things (IoT) since a node's low residual energy frequently causes packet loss, a shorter network lifetime, and end-to-end delays. IoT nodes frequently have a limited amount of resources, including processing and storage power, energy-saving potential, and communication. It is necessary to increase the energy consumption and network lifetime of WSN reliant IoT applications to provide a better Quality of Service (QoS) guarantee. In time-critical IoT applications, QoS is a key factor. Thus, a service provisioning method to transmit data with a superior QoS differentiation quotient has been presented in this paper.An improved zone header selection algorithm separates the sensor network based on node authentication and measures zone header-sink node combinations.The suggested QoS differentiation quotient algorithm is completely distributed and does not need any network knowledge beforehand. To show that the proposed solution improves the QoS of the WSN reliant IoT networks compared to various state-of-the-art techniques, simulation experiments were carried out utilizing various metrics such as data loss, transmission latency, energy consumption, and throughput. The suggested model performs better than existing methods in terms of all metrics, according to simulation findings.