Abstract
Various sensor networks have been increasingly deployed in the real world to help us observe our surrounding environment.However,it is common that the deployed sensor networks suffer from unpredictable faults.Hence,fast and effective fault detection,localization and repair are of utmost importance for sensor network debugging.Extraction techniques of system state information for sensor network debugging are summarized and compared after a brief introduction of debugging sensor networks.Representative debugging techniques and related tools are then surveyed from view of fault detection,localization and repair.The future research is discussed at the end of this paper.
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