Installation of a campus-wide indoor localization system based on Wireless LAN 802.11 in 15 buildings on the university campus (available since 2011).


Nowadays, mobile applications using location as decisive contextual information are considered state-of-the-art. The Global Positioning System (GPS) has been the decisive driver for location-based services (LBS) covering outdoor area not least because of the integration of GPS technology into modern mobile devices. However, still no convincing counterpart regarding indoor location acquisition has prevailed in real-life LBS scenarios.


Recently, commercial WLAN localization products have been introduced following a localization method having the mobile device acting as sensor or even estimating its position itself (client-based). In this research project, we develop a converse system where sensor hardware as well as position estimation is decoupled from the client, but achieved by a backend server combined with WLAN infrastructure within a complex of buildings (infrastructure-based).


A campus-wide tracking system based on wireless local area network infrastructure that is capable of simultaneously tracking numerous and diverse mobile clients (i.e., cell phones, laptops, personal digital assistants and alike) in multistory buildings within a campus facility at a near real time resolution and without client software to be installed. In the course of a real-life project at the campus of the University of Linz (accessible for all students, teachers and visitors), we have demonstrated the feasibility of our tracking system since January 2011.



Contact: Wolfgang Narzt


WLAN-based Indoor Localization


Heinrich Schmitzberger: Harnessing Wireless LAN Communication for Scalable Indoor Localization and Tracking, Doctoral thesis, Department of Business Informatics - Software Engineering, Johannes Kepler University Linz, September 2012.
PhD Thesis
W. Narzt, H. Schmitzberger: Enhancing Mobile Interaction using WLAN Proximity, 13th Conference on Human-Computer Interaction (HCI International 2011), Orlando, Florida, USA, July 9-14, 2011, Springer LNCS, doi:10.1007/978-3-642-21666-4_8.
Conference Article
W. Narzt, H. Schmitzberger: Near Field Sensing in Wireless LANs, 7th International Conference on Wireless and Mobile Communications, ICWMC 2011, Luxembourg, IARIA, ISBN: 978-1-61208-140-3, pp. 231.236, June 2011 (Best Paper Award!), Thinkmind Digital Library:icwmc_2011_11_10_20224.
Conference Article
H. Schmitzberger: Autonomous WLAN Sensors for Ad Hoc Indoor Localization, 13th International Conference on Computer Aided Systems Theory, EUROCAST 2011 - Mobile Computing Platforms and Technologies Workshop, Las Palmas de Gran Canaria, Spain, February 6-11, 2011.
Conference Article
H. Schmitzberger, W. Narzt: Leveraging WLAN Infrastructure for Large-Scale Indoor Tracking, Proceedings of the 6th International IEEE Conference on Wireless and Mobile Communications, ICWMC, Valencia, Spain, September 20-25, 2010, IEEE Computer Society, ISBN-13: 978-0-7695-4182-2, 2010 (Best Paper Award!), doi:10.1109/ICWMC.2010.57.
Conference Article