Querying Sensor Networks with Extended SQL
A wireless sensor network can be modeled as a database with unique features like dynamic, and approximate, unreliable. Query languages used in traditional databases for data and information retrieval thus need to be extended to support the retrieval of data and information from such a sensor network database. This paper presents extensions to existing query language, in particular SQL, to be used in sensor networks. We propose four query extensions, including timing, aggregations, QoS, and semantics. Syntax and examples are presented to explain the extensions. Practical issues are discussed on how to incorporate the extensions into a sensor network.
wireless sensor networks query SQL sliding windows QoS
Jun-Zhao Sun Jiehan Zhou
Academy of Finland, University of Oulu Oulu, FIN-90014, Finland Department of Electrical and Informa Department of Electrical and Information Engineering, University of Oulu Oulu, FIN-90014, Finland
国际会议
北京
英文
1-5
2010-06-25(万方平台首次上网日期,不代表论文的发表时间)