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Contraintes temporelles dans les bases de données de capteurs sans fil

Abstract : In this thesis, we are interested in adding real-time constraints in the Wireless Sensor Networks Database (WSNDB). Temporal consistency in WSNDB must be ensured by respecting the transaction deadlines and data temporal validity, so that sensor data reflect the current state of the environment. However, delays of transmission and/or reception in a data collection process can lead to not respect the data temporal validity. A database solution is most appropriate, which should coincide with the traditional database aspects with sensors and their environment. For this purpose, the sensor in WSN is considered as a table in a distributed database, which applied transactions (queries, updates, etc.). Transactions in a WSNDB require modifications to take into account of the continuous datastream and real-time aspects. Our contribution in this thesis focus on three parts: (i) a comparative study of temporal properties between a periodic data collection based on a remote database and query processing approach with WSNDB, (ii) the proposition of a real-time query processing model, (iii) the implementation of a real time WSNDB, based on the techniques described in the second contribution.
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  • HAL Id : tel-02073598, version 1


Abderrahmen Belfkih. Contraintes temporelles dans les bases de données de capteurs sans fil. Base de données [cs.DB]. Université du Havre, 2016. Français. ⟨NNT : 2016LEHA0014⟩. ⟨tel-02073598⟩



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