Cluster-Based Adaptive Fault Tolerant QoS Routing Algorithm for Wireless Networks

Wireless Sensor Networks (WSNs) has numerous distinctive features like resource-constrained sensors, arbitrary deployment and data-centric communication protocols. These features create exceptional challenges in the field of Quality of Service (QoS) requirements in WSNs. This paper proposed the design of Cluster-based Adaptive Fault Tolerant (CAFT) QoS routing algorithm with the purpose of attaining the desired QoS requirements and increase the system lifetime in WSNs. Data sensing and reclamation in WSNs have a huge applicability in several applications like military, environmental, medical, home and commercial applications. In order to handle all these application and to satisfy the QoS requirements, fault tolerance mechanisms is very vital. Hence, CAFT QoS routing algorithm is proposed in this paper to satisfy the QoS requirements. In the end, analyzed and validated the proposed CAFT with simulation studies and compared with Fully Distributed Cluster-Based (FDCB) and Extended FDCB (EFDCB) based on connection recovery time, number of dropped packets and throughput. The experimental results clearly suggest that the proposed approach provides significant results in terms of Connection recovery time, throughput and number of dropped packets.