摘要：Wireless Sensor Netwroks (WSNs) have a variety of applications, such as military surveillance, industry monitoring, mass vehicle control and smart home etc. In order to have an effective deploymet of WSNs, having an efficeint fault managemet solution is crucial. In this context, fault management has attained growing research interest. Concerning fault management various schemes are reported which could be classified into one of the three types. It is a well known fact that none of these schemes belonging to different categories has been successful in resolving this issue. Thus, there is a need to have a solution which can full-fill typical fault management requirements of a WSN. The contribution of this paper is to establish a clear and concise understanding leadings towards the root of the fault management problem. In this context, this paper critically review schemes which fall into the centralized structrucal approach in WSNs. We believe through such excersize provides a great background to establish new and effective fault management solutions for WSNs.
