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G. Reise, G. Matz:
"Reconstruction of Time-varying Fields in Wireless Sensor Networks using Shift-invariant Spaces: Iterative Algorithms and Impact of Sensor Localization Errors";
Poster: IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Marrakesch, Marokko; 20.06.2010 - 23.06.2010; in: "IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC)", (2010).

Based on the concept of hybrid shift-invariant spaces, we develop a distributed protocol for the reconstruction of time-varying physical fields in wireless sensor networks. The localized nature of these spaces allows for a clustered network architecture that leads to low communication overhead. Capitalizing on the sparsity of the reconstruction matrix, we propose direct and iterative reconstruction algorithms whose complexity per time-slot is linear in the number of sensors. We furthermore analyse the influence of sensor position jitter on the mean square error of the reconstructed field.

Wireless Sensor Network, Field Reconstruction, Shift-invariant Space, B-splines

http://publik.tuwien.ac.at/files/PubDat_186123.pdf