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3D Wireless Network Localization from Inconsistent Distance Observations.
- Source :
- Adhoc & Sensor Wireless Networks; 2007, Vol. 4 Issue 3, p141-170, 30p, 7 Diagrams, 1 Chart, 5 Graphs
- Publication Year :
- 2007
-
Abstract
- This paper presents a 3-dimensional algorithm for determining the node locations in ad-hoc wireless local area sensor networks capable of internodal distance measurement (ranging). In accordance with common classification of localisation strategies, the paper proposes a geometric centralised optionally anchor free algorithm that is based on clusterisation, multilateration and geodetic network adjustment. The method avoids fold- ambiguities by statistical tests on the robustness of the minimally stable structure in 3D. Such a rigid cluster is expanded by a novel robust approach for multilateration. The algorithm developed is capable of obtaining the least-squares solution reliably even in the presence of measurement noise levels of up to 7% of the ranges. Simulations with randomly deployed networks show that it is possible to reach the best achievable mean position deviation (i.e. the Cramer Rao bound). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15519899
- Volume :
- 4
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Adhoc & Sensor Wireless Networks
- Publication Type :
- Academic Journal
- Accession number :
- 31384912