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8554 An Adaptive Directed Query Dissemination Scheme for Wireless Sensor Networks
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Chatterjea, S. and Luigi, S.d. and Havinga, P.J.M. (2006) An Adaptive Directed Query Dissemination Scheme for Wireless Sensor Networks. In: 9th IEEE International Conference on Parallel Processing Workshops 2006, ICPPW 2006, 14 Aug 2006, Columbus, USA. pp. 181-188. International Conference on Parallel Processing Workshop. IEEE Computer Society. ISBN 0-7695-2637-3

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This paper describes a directed query dissemination scheme, DirQ that routes queries to the appropriate source nodes based on both constant and dynamicvalued attributes such as sensor types and sensor values. Unlike certain other query dissemination schemes, location information is not essential for the operation of DirQ. DirQ uses only locally available information in order to route queries accurately. Nodes running DirQ are able to adapt autonomously to changes in network topology due to certain crosslayer features that allow it to exchange information with the underlying MAC protocol. DirQ allows nodes to autonomously control the rate of sending update messages in order to keep the routing information updated. The rate of sending updates is dependent on both the number of queries injected into the network and the rate of variation of the measured physical parameter. Our results show that DirQ spends between 45% and 55% the cost of flooding.

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-CAES: Computer Architecture for Embedded Systems
Research Program:CTIT-UBRICKS: Building Blocks for Ubiquitous Computing and Communication
Research Project:Consensus: Collaborative Sensor Networks
ID Code:8554
Deposited On:16 January 2007
More Information:statisticsmetis

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