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ICDCS
2008
IEEE

Mobile Filtering for Error-Bounded Data Collection in Sensor Networks

10 years 3 months ago
Mobile Filtering for Error-Bounded Data Collection in Sensor Networks
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. We start by presenting an optimal filter migration algorithm for a chain topology. The algorithm is then extended to general multichain and tree topologies. Extensive simulations demonstrate that, for both synthetic and real data traces, the mobile filtering scheme s...
Dan Wang, Jianliang Xu, Jiangchuan Liu, Feng Wang
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICDCS
Authors Dan Wang, Jianliang Xu, Jiangchuan Liu, Feng Wang
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