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2005
IEEE

Resilient Localization for Sensor Networks in Outdoor Environments

9 years 1 days ago
Resilient Localization for Sensor Networks in Outdoor Environments
The process of computing the physical locations of nodes in a wireless sensor network is known as localization. Selflocalization is critical for large-scale sensor networks because manual or assisted localization is often impractical due to time requirements, economic constraints or inherent limitations of deployment scenarios. We have developed a service for reliably localizing wireless sensor networks in environments conducive to ranging errors by using a custom hardware-software solution for acoustic ranging and a family of self-localization algorithms. The ranging solution improves on previous work, extending the practical measurement range threefold (20–30m) while maintaining a distance-invariant median measurement error of about 1% of maximum range (33cm). The localization scheme is based on least squares scaling with soft constraints. Evaluation using ranging results obtained from sensor network field experiments shows that the localization scheme is resilient against large-...
YoungMin Kwon, Kirill Mechitov, Sameer Sundresh, W
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where ICDCS
Authors YoungMin Kwon, Kirill Mechitov, Sameer Sundresh, WooYoung Kim, Gul A. Agha
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