Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33659
Title: Mobile filter : exploring migration of filters for error-Bounded data collection in sensor networks
Authors: Wang, D 
Xu, J
Liu, J
Wang, F
Keywords: Filtering theory
Telecommunication traffic
Wireless sensor networks
Issue Date: 2008
Publisher: IEEE
Source: IEEE 24th International Conference on Data Engineering, 2008 : ICDE 2008, 7-12 April 2008, Cancun, p. 1483-1485 How to cite?
Abstract: In wireless sensor networks, filters, which suppress data update reports within predefined error bounds, effectively reduce the traffic volume for continuous data collection. All prior filter designs, however, are stationary in the sense that each filter is attached to a specific sensor node and remains stationary over its lifetime. In this paper, we propose mobile filter, a novel design that explores migration of filters to maximize overall traffic reduction. A mobile filter moves upstream along the data collection path, with its residual size being updated according to the collected data. Intuitively, this migration extracts and relays unused filters, leading to more proactive suppressing of update reports. While extra communications are needed to move filters, we show through probabilistic analysis that the overhead is outrun by the gain from suppressing more data updates.
URI: http://hdl.handle.net/10397/33659
ISBN: 978-1-4244-1836-7
978-1-4244-1837-4 (E-ISBN)
DOI: 10.1109/ICDE.2008.4497597
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