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CDC
2010
IEEE

Distributed statistical estimation of the number of nodes in sensor networks

10 years 6 months ago
Distributed statistical estimation of the number of nodes in sensor networks
The distributed estimation of the number of active sensors in a network can be important for estimation and organization purposes. We propose a design methodology based on the following paradigm: some locally randomly generated values are exchanged among the various sensors and thus modified by known consensus-based strategies. Statistical analysis of the a-consensus values allows estimation of the number of participant sensors. The main features of this approach are: algorithms are completely distributed, since they do not require leader election steps; sensors are not requested to transmit authenticative information (for example identificative numbers or similar data), and thus the strategy can be implemented whenever privacy problems arise. After a rigorous formulation of the paradigma we analyze some practical examples, fully characterize them from a statistical point of view, and finally we provide some general theoretical results and asymptotic analyses.
Damiano Varagnolo, Gianluigi Pillonetto, Luca Sche
Added 13 May 2011
Updated 13 May 2011
Type Journal
Year 2010
Where CDC
Authors Damiano Varagnolo, Gianluigi Pillonetto, Luca Schenato
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