A Survey of Fault Tolerance Management Frameworks, Fault Detection and Recovery Techniques for WSNs

Due to the ease of use and extensive capabilities, wireless sensor networks are widely used. One of the important features that these networks need to have is reliability so that if a fault occurs in the system it can provide expected services and its main function won't be impressed. To establish and maintain reliability, wireless sensor networks must be fault tolerant and be protected against fault occurrence using the right techniques and be prevented from turning into errors and creating failures. In order to make a wireless sensor network fault tolerant it is important to be aware of faults that may happen in system and selecting the best detection, recovery or management techniques. In this article, we will explore a variety of problems that are threaten the reliability of wireless sensor networks and techniques to detect and recover them. Also, fault management techniques and fault tolerant management frameworks in WSNs will be explained and compared and comprehensive study of fault recovery methods will be provided.