Geolocation with Mobile Devices

Project Members

Stefan Mangold (Disney Research Zurich)
Vladimir Vukadinovic (Disney Research Zurich)
Domenico Giustiniano (Disney Research Zurich)
Maria Gorlatova (Disney Research Zurich)
Roberto Aiello (Disney Research Glendale)

Allowing guests of entertainment parks or at cruise liners to localise themselves is an interesting technical challenge and important for new types of wireless services. Such geolocation is typically based on cellphone determining their locations with the help of GPS or cellular base stations. Drawbacks of GPS are high battery consumption and the need for a clear view of the sky, making it impractical at cruise liners, in indoor areas, tree-covered zones, or similar environments where obstacles shadow the GPS signals. Approaches using the cellular network are not reliable and precise enough. In this project, we look at various technologies to improve the reliability of the geolocation services. We develop a station identity management system that preserves base station location privacy. The objective is to allow only authorized parties to obtain the locations of guests. We further investigate ways to exploit Wi-Fi time-of-flight measurements for precise and reliable localization.


Stefan Mangold (


CAESAR- Carrier Sense-Based Ranging in Off-the-Shelf 802.11 Wireless LAN-Thumbnail

CAESAR: Carrier Sense-based Ranging in Off-the-Shelf 802.11 Wireless LAN
December 1, 2012
ACM Conference on Emerging Networking Experiments and Technologies (CoNEXT) 2012
Paper File [pdf, 857.41 KB]

Performance of Collaborative GPS Localization in Pedestrian Ad Hoc Networks-Thumbnail

Performance of Collaborative GPS Localization in Pedestrian Ad Hoc Networks
March 15, 2012
ACM International Workshop on Mobile Opportunistic Networks (ACM MobiOpp) 2012
Paper File [pdf, 1.20 MB]

Managing Base Station Location Privacy-Thumbnail

Managing Base Station Location Privacy
January 1, 2011
Military Communications Conference (MILCOM) 2011
Paper File [pdf, 1.09 MB]

Managing Location Privacy in Cellular Networks with Femtocell Deployments-Thumbnail

Managing Location Privacy in Cellular Networks with Femtocell Deployments
January 1, 2011
International Symposium of Modeling and Optimization of Mobile, Ad Hoc and Wireless Networks (WiOpt) 2011
Paper File [pdf, 582.65 KB]

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