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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/5568
Title: Data filtering and dynamic sensing for continuous monitoring in wireless sensor networks
Authors: Sharma T.P.
Joshi R.C.
Misra M.
Published in: International Journal of Autonomous and Adaptive Communications Systems
Abstract: Most wireless sensor networks (WSNs) are deployed for continuous monitoring of event(s) over very long periods. In such scenarios, lots of redundant and spurious data readings are generated at sensing nodes (SNs). If data remains untreated, continuous sensing over very long duration injects numerous undesired data readings into the network causing unnecessary consumption of substantial portion of network energy. Further, if sensing frequency at SNs is fixed and event changes its behaviour randomly, then either lot of redundant data readings are generated or many important observations are missed at crucial points. Therefore, in this paper a data filtering scheme called as two-way sliding window (TWSW) data filtering is proposed that filters/blocks redundant and spurious data using some filtering function at few SNs. Using TWSW setup, we further propose a novel scheme to dynamically adjust sensing frequency at active SNs to adapt to changing behaviour of an event. Simulation results show significant energy savings when these schemes are applied to various data dissemination approaches as opposed to scenarios when no such approaches are used. Copyright © 2010 Inderscience Enterprises Ltd.
Citation: International Journal of Autonomous and Adaptive Communications Systems (2010), 3(3): 239-264
URI: https://doi.org/10.1504/IJAACS.2010.033382
http://repository.iitr.ac.in/handle/123456789/5568
Issue Date: 2010
Keywords: Data filtering
Data reporting
Dynamic and adaptive sensing
Energy efficiency
Tuning sensing frequency
Two-way sliding window
TWSW
Wireless sensor networks
WSN
ISSN: 17548632
Author Scopus IDs: 57190931672
7202084587
56223635000
Author Affiliations: Sharma, T.P., Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
Joshi, R.C., Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
Misra, M., Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
Corresponding Author: Sharma, T.P.; Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India; email: teek_parval@rediffmail.com
Appears in Collections:Journal Publications [CS]

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