Wireless Sensor Networks (WSNs) have the potential of significantly enhancing our ability to monitor and interact with our physical environment. Wireless Sensor networks (WSN) are inherently fault-prone and the reliability of WSN is affected by faults that may occur due to various reasons such as malfunctioning hardware and software glitches, dislocation or environmental reasons. It is necessary for the WSN to be able to detect faults early and initiate appropriate recovery action to maintain the quality of service (QoS) of the wireless sensor networks. In this paper, we address these challenges by surveying existing fault detection and fault management approaches in WSN's. It is observed that the main challenge for management of WSN is to provide efficient and reliable fault tolerance (FT) mechanism while conserving the limited resources of the network.

1. Sergio Marti, T. J. Giuli, Kevin Lai, Mary Baker. itigating Routing Misbehavior in Mobile Ad Hoc Networks. in 6th International. Conference on Mobile Computing and Networking. 2000. Boston,Massachusetts
2. Farinaz koushanfar, Miodrag Potkonjak, Alberto Sangiovanni- Vincentelli. Fault Tolerance Techniques for Wireless Ad Hoc Sensor Networks. 2000.
3. A. Perrig, R. Szewczyk, V. Wen, D. Culler, J. D. Tygar. SPINS: Security protocols for sensor networks. in ACM MobiCom'01. 2001. Rome, Italy: ACM Press.
4. Chihfan Hsin, Mingyan Liu. A Distributed Monitoring Mechanism for Wireless Sensor Networks. in 3rd workshopo on Wireless Security. 2002: ACM Press.
5. Linnyer Beatrys Ruiz, Jose Marcos S. Nogueira, Antonio A. F. Loureiro, MANNA: A Management Architecture for Wireless Sensor Networks. IEEE Communications Magazine, 2003. 41(2): p. 116-125.
6. Ann T. Tai, Kam S. Tso, William H. Sanders. Cluster-Based Failure Detection Service for Large-Scale Ad Hoc Wireless Network Applications in Dependable Systems and Networks DSN ' 04. 2004.
7. Z. Ying, X. Debao. Mobile Agent-based Policy Management for WSN. in WCNM. 2005.
8. Winnie Louis Lee, Amitava Datta, Rachel Cardell-Oliver, WinMS: WSN-Management System, An Adaptive Policy- Based Management for WSN. 2006, UWA, aUSTRALIA.
9. C. Hsin, Mingyan Liu, Self-monitoring of WSN. Computer Communications, 2005. 29: p. 462-478.
10. Min Ding, Dechang Chen, Kai Xing, Xiuzhen Cheng. Localized Fault- Tolerant Event Boundary Detection in Sensor Networks. in INFOCOM 2005.
11. Jinran Chen, Shubha Kher, Arun Somani. Distributed Fault Detection of Wireless Sensor Networks. in DIWANS'06. 2006. Los Angeles, USA: ACM Pres.
12. Xuanwen Luo, Ming Dong, Yinlun Huang, On Distributed Fault- Tolerant Detection in Wireless Sensor Networks. IEEE Transactions on Computers, 2006.
13. XuanwenLuo, Ming Dong, Yinlun Huang, Optimal Fault-Tolerance Event Detection in WSN.
14. Ruixin Niu, Pramod K. Varshney, Distributed Detection and Fusion in a Large Wireless Sensor Network of Random Size. Eurasip Journal on Wireless Communications and Networking, 2005. 4: p. 462-472.
15. Pramod K. Varshney Ruixin Niu, Dale Klamer Michael Moore. Decision Fusion in a Wireless Sensor Network with a Large Number of Sensors. in IF04. 2004. Stockholm, Sweden.
16. Thomas Clouqueur, Kewalk, Saluja, Parameswaran Ramanathan, Fault Tolerance in Collaborative Sensor Networks for Target Detection. IEEE Transactions on Computers, 2004. 53(3): p. 320-333.
17. Tsang-Yi Wang, Yunghsiang S. Han, Pramod K. Varshney, Po-Ning Chen, Distributed Fault-Tolerant Classification in Wireless Sensor Networks. IEEE Journal on Selected Areas in Communications, 2005. 23(4): p. 724-734.
18. S. . Tanachaiwiwat, P. Dave, R. Bhindwale, A. Helmy, Secure Locations: routing on trust and isolating compromised sensors in location-aware sensor networks.
19. Jessica Staddon, Dirk Balfanz, Glenn Durfee. Efficient Tracing of Failed Nodes in Sensor Networks. in First ACM International Workshop on Wireless Sensor Networks and Applications. 2002. Altanta, GA, USA: ACM.
20. NIthya Ramanathan, Kevin Chang, Rahul Kapur, Lewis Girod, Eddie Kohler, Deborah Estrin. Sympathy for the Sensor Network Debugger. In 3rd Embedded networked sensor systems. 2005. San Diego, USA: ACM Press.
21. S Harte, A Rahman, K M Razeeb. Fault Tolerance In Sensor Networks using Self-Diagnosing Sensor Nodes. in IE2005. 2005: IEEE.
22. A. Sheth, C. Hartung, Richard Han. A Decentralized FaultDiagnosis System for WSN. in 2nd M bile Ad Hoc and Sensor Systems. 2005. Washington, USA.
23. Linnyer Beatrys Ruiz, Isabela G. Siqueira, Leondardon B. e Oliveria, Hao Chi Wong, Jose Marcos S. Nogueira, Antonio A. F. Loureiro. Fault management in event-driven wireless sensor networks. in International Workshop on Modeling Analysis and Simulation of Wireless and Mobile Systems. 2004. Venice, Italy: ACM Press.
24. Deborah Estrin, R. Govindan, J. Heidemann, S. Kumar. Next Century Challenges: Scalable Coordination in Sensor Networks. In ACM/IEEE International Conference on Mobile Computing and networking. 1999.
25. M. Yu, H. Mokhtar, and M. Merabti "A Survey on Fault Management in WSN" ISBN: 1-9025-6016-7, 2007
26. J. L. Berdin, E. Demaine, "Deploying Sensor network with guarantied capacity and fault tolerance" In the proceeding of 6 international symposiums, pages 309-319.

Wireless Sensor Network Fault Detection Fault Management Fault Tolerance