Abstract
Network topology changes frequently due to dynamic nature and leads to frequent link failures, reliability problem, also causes stability issues. To overcome the issues and to increase the link reliability various routing methods such as multi-path routing, on-demand routing and backup path routing are developed. A primary back up route establishment for QoS routing protocol is designed to detect the potential failures of nodes in the network. For detection of failures, a path evaluation function is determined based on the metrics energy drain rate and interference, congestion status are measured. once failure is detected, back up routes are established and transmission is redirected on these back up routes. Simulation results show that the proposed protocol has reduced recovery delay and improved throughput as compared with the existing protocol.
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