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Internal Localisation Techniques using Wireless Networks: A Review

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Vance, P, Prasad, G, Harkin, JG and Callaghan, MJ (2007) Internal Localisation Techniques using Wireless Networks: A Review. In: IET Irish Signals and Systems Conference Conference. IET. 6 pp. [Conference contribution]

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URL: http://ebookbrowse.com/issc07-paper-draft4-doc-d97992597


GPS currently provides accurate localisation for external applications however it fails to function internally due to the direct line-of-sight requirement by satellites. This exposes a need to produce a reliable, low cost, accurate system for internal use. As with GPS, internal localisation signals suffer from attenuation, reflection, refraction and multi-path propagation due to objects in the environment i.e. walls, furniture, people. The significant impact factor is the movement of people as they cause signal distortion and create uncertainty in location data. Due to this uncertainty, many methods used for localisation have compromised on accuracy for low cost or power consumption. For example, many commercial systems available incorporate higher costs for proprietary hardware to boost the signals and therefore increase accuracy. This paper provides a review of the most common techniques for internal localisation which use wireless access points (APs). In addition, the paper proposes a new approach to internal localisation which aims at increasing the accuracy of detection whilst keeping minimum system cost.

Item Type:Conference contribution (Poster)
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Intelligent Systems
Research Institutes and Groups:Computer Science Research Institute
Computer Science Research Institute > Intelligent Systems Research Centre
ID Code:8684
Deposited By:Professor Girijesh Prasad
Deposited On:16 May 2011 10:15
Last Modified:16 May 2011 10:15

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