摘要：The design of wireless sensor networks (WSNs) is influenced by many factors, including fault tolerance. Fault tolerance is the ability to ensure the functionality of the network in the events of faults and failures. Sensor nodes in WSNs are expected to operate autonomously for a long period of time and may not be easily approachable for battery replacement and maintenance due to their physical deployment locations. Therefore, in order to guarantee the network quality of service and performance, it is essential for the WSNs to be able to detect faults and failures, and to perform something akin to healing and recovering from events that might cause faults or misbehavior in the network. Therefore, fault tolerance should be seriously considered in many WSNs applications. A set of functions or applications designed specifically for this purpose is called a fault-management platform [1]. Concerning fault management various schemes have been proposed. However, it is evident from the existing literature that very least attention has been paid to evaluate or analyzed these schemes. The contribution of this work is to fill this gap by analyzing some of the dominant schemes in this area. We believe this work will benefits either in development of some new solutions or modifying existing fault management schemes.
