Abstract
Event detection is an essential issue for wireless sensor networks research. Energy saving and reliable detection are major challenges for the resource constraints on sensor nodes. To give attention to both of them, this paper presents a distributed event detection approach using self-learning threshold to fully exploit the energy-reliability tradeoff in wireless sensor networks. In the proposed approach, a stream of real-valued sensor readings is mapped into symbol sequences in order to reduce data dimensionality and simplify event description. A dynamic conversion granularity is adopted to improve the effectiveness of symbolic representation. Then the anomaly probabilities of symbol sequences are estimated through Markov model, and sensor nodes participating in the event detection make local decisions in a distributed manner based on the learned anomaly detection threshold. A timer-based node sleep scheduling is developed to prolong network lifetime during the detection process. Subsequently, the final detection decision is made by a bitwise voting based on the local decisions. A comprehensive set of simulations demonstrate that the proposed approach achieves considerable energy conservation while maintaining fast and accurate event detection.














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Bahrepour, M., Meratnia, N., & Havinga, P. J. M. (2008). Automatic fire detection: A survey from wireless sensor network perspective. Technical Report, Centre for Telematics and Information Technology University of Twente, Enschede.
Li, M., Liu, Y. H., & Chen, L. (2008). Nonthreshold-based event detection for 3D environment monitoring in sensor networks. IEEE Transactions on Knowledge and Data Engineering, 20, 1699–1711.
Werner-Allen, G., Lorincz, K., Ruiz, M., Marcillo, O., Johnson, J., Lees, J., & Welsh, M. (2006). Deploying a wireless sensor network on an active volcano. IEEE Internet Computing, 10, 18–25.
Chong, C. Y., & Kumar, S. P. (2003). Sensor networks: Evolution, opportunities, and challenges. Proceedings of the IEEE, 91(8), 1247–1256.
Hodge, V., & Austin, J. (2004). A survey of outlier detection methodologies. Artificial Intelligence Review, 22, 85–126.
Rajasegarar, S., Leckie, C., & Palaniswami, M. (2008). Anomaly detection in wireless sensor networks. IEEE Wireless Communications, 15(4), 34–40.
Xie, M., Han, S., Tian, B. M., & Parvin, S. (2011). Anomaly detection in wireless sensor networks: A survey. Journal of Network and Computer Applications, 34(4), 1302–1325.
Zhu, Y. M., Liu, Y. H., & Ni, L. M. (2012). Optimizing event detection in low duty-cycled sensor networks. Wireless Networks, 18(3), 241–255.
Guo, P., Jiang, T., Zhang, Q., & Zhang, K. (2012). Sleep scheduling for critical event monitoring in wireless sensor networks. IEEE Transactions on Parallel and Distributed Systems, 23(2), 345–352.
Yoo, H., Shim, M., & Kim, D. (2012). Dynamic duty-cycle scheduling schemes for energy-harvesting wireless sensor networks. IEEE Communications Letters, 16(2), 202–204.
Chandola, V., Banerjee, A., & Kumar, V. (2009). Anomaly detection: A survey. ACM Computing Surveys, 41(3), 15.
Abadi, D., Madden, S., & Lindner, W. (2005). Reed: Robust, efficient filtering and event detection in sensor networks. In Proceedings of the 31st international conference on very large data bases, Trondheim, Norway (pp. 769–780).
Krishnamachari, B., & Iyengar, S. (2004). Distributed Bayesian algorithms for fault-tolerant event region detection in wireless sensor networks. IEEE Transactions on Computers, 53(3), 241–250.
Peng, L. P., Gao, H., & Li, J. Z. (2008). Reliable and fast detection of gradual events in wireless sensor networks. In International conference on wireless algorithms, systems, and applications, Dallas, TX, USA.
Yim, S. J., & Choi, Y. H. (2010). An adaptive fault-tolerant event detection scheme for wireless sensor networks. Sensors, 10, 2332–2447.
Kapitanova, K., Son, S. H., & Kang, K. D. (2012). Using fuzzy logic for robust event detection in wireless sensor networks. Ad Hoc Networks, 10(4), 709–722.
Zhang, C., Wang, C., Li, D., Zhou, X., & Gao, C. (2009). Unspecific event detection in wireless sensor networks. In International Conference on Communication Software and Networks, Macau, China (pp. 243–246).
Zoumboulakis, M., & Roussos, G. (2011). Complex event detection in extremely resource-constrained wireless sensor networks. Mobile Networks and Applications, 16(2), 194–213.
Loo, C., Ng, M., Leckie, C., & Palaniswami, M. (2006). Intrusion detection for routing attacks in sensor networks. International Journal of Distributed Sensor Networks, 2(4), 313–332.
Curiac, D. I., & Volosencu, C. (2012). Ensemble based sensing anomaly detection in wireless sensor networks. Expert Systems with Applications, 39(10), 9087–9096.
Amato, G., Chessa, S., Gennaro, C., & Vairo, C. (2014). Querying moving events in wireless sensor networks. Pervasive and Mobile Computing. doi:10.1016/j.pmcj.2014.01.008.
Testa, A., Cinque, M., Coronato, A., De Pietro, G., & Augusto, J. C. (2014). Heuristic strategies for assessing wireless sensor network resiliency: an event-based formal approach. Journal of Heuristics. doi:10.1007/s10732-014-9258-x.
Rajasegarar, S., Leckie, C., Palaniswami, M., & Bezdek, J. C. (2007). Quarter sphere based distributed anomaly detection in wireless sensor networks. In IEEE international conference on communications, Glasgow, UK (pp. 3864–3869).
Jarupadung, S. (2012). Distributed event detection and semantic event processing. In ACM international conference on distributed event-based systems, Berlin, Germany.
Zoumboulakis, M., & Roussos, G. (2009). Efficient pattern detection in extremely resource-constrained devices. In 6th annual IEEE communications society conference on sensor, mesh and ad hoc communications and networks (pp. 1–9).
Heinzelman, W. B., Chandrakasan, A. P., & Balakrishnan, H. (2002). An application-specific protocol architecture for wireless microsensor networks. IEEE Transaction on Wireless Communications, 1(4), 660–670.
Lin, J., Keogh, E., Lonardi, S., & Chiu, B. (2003). A symbolic representation of time series with implications for streaming algorithms. In Proceedings of the 8th ACM SIGMOD workshop on research issues in data mining and knowledge discovery (pp. 2–11).
Madden, S. (2004). Intel Berkeley Research Lab data. http://db.csail.mit.edu/labdata/labdata.html.
Wang, Y., Wang, D. H., & Chen, F. X. (2014). Abnormal behavior detection using trajectory analysis in camera sensor networks. International Journal of Distributed Sensor Networks. doi:10.1155/2014/839045.
Acknowledgments
This work was supported in part by the Natural Science Foundation of China under Grants 41202232, 61271274, 61302137; Technology Research Program of Hubei province, China, under Grants 2012FFA108, 2013BHE009; Wuhan Youth Chenguang Program of Science and Technology under Grant 2014070404010209; and Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan). The authors thank Yaodong Shen for contributing to the early simulations of this work.
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Wang, Y., Wang, D., Chen, F. et al. Efficient event detection using self-learning threshold for wireless sensor networks. Wireless Netw 21, 1783–1799 (2015). https://doi.org/10.1007/s11276-014-0885-9
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DOI: https://doi.org/10.1007/s11276-014-0885-9