Robust Sink Failure Avoidance Protocol for Wireless Sensor Networks

Sink failure is one of the critical issues in wireless sensor networks (WSNs). Prolonging the network lifetime of WSNs, the robust sink has a paramount significance to provide an interface between deployed sensors successfully. The sink failure highly affects the performance of several WSN applications. Hence, the Sink must have the capability to recover from the failure state immediately. In this paper, we introduce a sink failure avoidance (SFA) protocol that improves the network lifetime by using sink fault tolerance algorithms. SFA helps determine the error detection and error recovery processes successfully. To demonstrate the effectiveness of algorithms, we use network simulator-2 (ns2.35). Based on the simulation results, it is validated that our algorithms highly support the error-detection and error-recovery process of the sink failure successfully.