Achieving the best quality as per user requirement is one of the important challenges in Wireless Sensor Network (WSN) containing numerous sensor nodes with limited battery power. The time-critical applications in WSN demand energy-efficient and reliable transmission of data with limited resource availability. To resolve these issues, our proposed optimal cluster head selection method choose node as CH subjected to minimal end-to-end delay and congestion index. The nodes with maximum remaining energy, not being subjected to delay and heavy traffic have been selected as a cluster head (CH) for the next round. The Inter-cluster routing path constructed based on energy, delay, and congestion index cost function to achieve aggregated bandwidth through the establishment of multipath. MQoScMR supports adaptive CH and path selection, tuning QoS parameter according to application requirement. The technique proposed outperforms when compared with the existing protocol in terms of minimized energy consumption, delay, packet drop ratio, and high throughput.

在包含无数电池电量有限的传感器节点的无线传感器网络（WSN）中，按用户要求实现最佳质量是一项重要挑战。WSN中对时间要求严格的应用程序要求在有限的资源可用性下实现节能，可靠的数据传输。为了解决这些问题，我们提出的最优簇头选择方法选择节点作为CH，并使其端到端的延迟和拥塞指数最小。剩余能量最大，不受延迟和繁忙通信量影响的节点已被选作下一轮的簇头（CH）。基于能量，延迟和拥塞指数成本构建的集群间路由路径通过建立多路径来实现聚合带宽。MQoScMR支持自适应CH和路径选择，根据应用需求调整QoS参数。与现有协议相比，建议的技术在最小化的能耗，延迟，丢包率和高吞吐量方面表现出色。