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2006
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An Adaptive Directed Query Dissemination Scheme for Wireless Sensor Networks

10 years 4 months ago
An Adaptive Directed Query Dissemination Scheme for Wireless Sensor Networks
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.
Supriyo Chatterjea, Simone De Luigi, Paul J. M. Ha
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where ICPPW
Authors Supriyo Chatterjea, Simone De Luigi, Paul J. M. Havinga
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