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Conference Paper
A Novel Model-based Indoor Positioning using Signal Strength
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- Authors
- Kamran Sayrafian-Pour, Dominik Kaspar
- Issue Date
- 2007-09
- Citation
- International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2007, pp.1-5
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- A simple technique to estimate the position of a mobile node inside a building is based on the Received Signal Strength (RSS). In a previous publication, we investigated the feasibility of using circular array antennas and beamforming in order to enable an access point to estimate the position of a mobile inside a building. The approach utilized the two dimensional information (i.e. RSS for various azimuth directions) that is captured in a priori measured radio map. Generating these radio maps is not only extremely labor-intensive and time consuming but also sensitive to changes in the environment and possible source of interference. It would be interesting to find out if a deterministic propagation model such as ray tracing can be used to construct a radio map that effectively replaces the off-line manual measurements. In this paper, we investigate this issue and provide a novel positioning methodology that exhibits acceptable performance without the need for extensive set of measurements in the off-line mode. The performance for various parameters and building model accuracy will be presented and discussed. © 2007 IEEE.
- KSP Keywords
- Access point, Array antenna, Circular array, Deterministic propagation, Dimensional Information, Indoor Positioning, Mobile node(MN), Model accuracy, Novel model, Off-line, Radio Map