|
|
|
     |
                                     |
Return to Stream Management
Hardware for sensor nodes that combine physical sensors, actuators, embedded processors, and communication components has advanced significantly over the last decade, and made the large-scale deployment of such sensors a reality. Applications range from monitoring applications such as inventory maintenance over health care to military applications. In this paper, we evaluate the design of a query layer for sensor networks. The query layer accepts queries in a declarative language that are then optimized to generate efficient query execution plans with in-network processing which can significantly reduce resource requirements. We examine the main architectural components of such a query layer, concentrating on in-network aggregation, interaction of in-network aggregation with the wireless routing protocol, and distributed query processing. Initial simulation experiments with the ns-2 network simulator show the tradeoffs of our system.
@inproceedings {DBLP:conf/cidr/YaoG03, author = {Yong Yao and Johannes Gehrke}, booktitle = {CIDR}, title = {Query Processing in Sensor Networks.}, year = {2003}, url = {db/conf/cidr/cidr2003.html#YaoG03}, ee = {http://www-db.cs.wisc.edu/cidr/program/p21.pdf}, bibsource = {DBLP, http://dblp.uni-trier.de} }  ©2004 Association for Computing Machinery |
