Collection trees for event-monitoring queries

11 years 7 months ago
Collection trees for event-monitoring queries
In this paper we present algorithms for building and maintaining efficient collection trees that provide the conduit to disseminate data required for processing monitoring queries in a wireless sensor network. While prior techniques base their operation on the assumption that the sensor nodes that collect data relevant to a specified query need to include their measurements in the query result at every query epoch, in many event monitoring applications such an assumption is not valid. We introduce and formalize the notion of event monitoring queries and demonstrate that they can capture a large class of monitoring applications. We then show techniques which, using a small set of intuitive statistics, can compute collection trees that minimize important resources such as the number of messages exchanged among the nodes or the overall energy consumption. Our experiments demonstrate that our techniques can organize the data collection process while utilizing significantly lower resourc...
Antonios Deligiannakis, Yannis Kotidis, Vassilis S
Added 21 Aug 2011
Updated 21 Aug 2011
Type Journal
Year 2011
Where IS
Authors Antonios Deligiannakis, Yannis Kotidis, Vassilis Stoumpos, Alex Delis
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