A Review of Fault Detection and Diagnosis Protocols for WSNs

Wireless-sensor-networks are made up small sensor-nodes with their own computation and communication capability, for example, to detect temperature, pressure, sound, etc. The nodes of the sensor are of an ad -hoc nature and are moved to a brutal environmental condition equipped with a limited power supply that may lead to high chances of failure occurrence. In addition, the Faulty node may degrade the quality/performance of the overall network environment. so proper environment and complete strategies are required to function properly and maintain reliability while protecting the level of WSN detection. In this paper, we reviewed the identification and strategic fault-tolerant scheme with their ability to handle the fault in a brutal environment and improving the overall quality and functionality of the system.