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Abstract
We propose a novel algorithm for sensor selflocalization
in cooperative wireless networks where observations
of relative sensor distances are available. The variational message
passing (VMP) algorithm is used to implement a mean field
solution to the estimation of the posterior probabilities of the
sensor positions in an R^2 scenario. Extension to R^3 is straightforward.
Compared to non-parametric methods based on belief
propagation, the VMP algorithm features significantly lower
communication overhead between sensors. This is supported by
performance simulations which show that the estimated mean
localization error of the algorithm stabilizes after approximately
30 iterations.
in cooperative wireless networks where observations
of relative sensor distances are available. The variational message
passing (VMP) algorithm is used to implement a mean field
solution to the estimation of the posterior probabilities of the
sensor positions in an R^2 scenario. Extension to R^3 is straightforward.
Compared to non-parametric methods based on belief
propagation, the VMP algorithm features significantly lower
communication overhead between sensors. This is supported by
performance simulations which show that the estimated mean
localization error of the algorithm stabilizes after approximately
30 iterations.
| Original language | English |
|---|---|
| Title of host publication | IEEE International Symposium on Information Theory Proceedings (ISIT) 2011 |
| Number of pages | 5 |
| Publisher | IEEE |
| Publication date | Aug 2011 |
| Pages | 2158-2162 |
| ISBN (Print) | 978-1-4577-0596-0 |
| ISBN (Electronic) | 978-1-4577-0594-6 |
| Publication status | Published - Aug 2011 |
| Event | 2011 IEEE International Symposium on Information Theory - St. Petersburg, Russian Federation Duration: 31 Jul 2011 → 5 Aug 2011 |
Conference
| Conference | 2011 IEEE International Symposium on Information Theory |
|---|---|
| Country/Territory | Russian Federation |
| City | St. Petersburg |
| Period | 31/07/2011 → 05/08/2011 |
Keywords
- Variational message passing
- mean field
- localization
- wireless sensor network
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- 1 Finished
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WHERE2: Wireless Hybrid Enhanced Mobile Radio Estimators 2 (WHERE2)
Fleury, B. H., Madsen, T. K., Pedersen, T., Nielsen, J. J., Steinböck, G., Manchon, C. N. & Pedersen, C.
FP7-ICT-2009-4: The Network of the Future
01/07/2010 → 30/09/2013
Project: Research