Invited Talk - Localization using distributed radio sensors based on software-defined radios

Publication Date: 2014-04-15 11:03:06

22nd April 2014

Invited Talk
22nd April 2014 - 14h
Room D.1.5

Invited Speaker:
Prof Torsten Braun (University of Bern)

Localization using distributed radio sensors based on software-defined radios

Organizations and companies are becoming increasingly interested in localizing, counting, or tracking of visitors, e.g., in railway stations, airports, shopping centers and amusement parks. We have implemented passive localization systems, which are able to detect and localize a user's mobile device based on passively overhearing the devices' radio (GSM signalling, WiFi) transmissions, i.e. without installing any software on the mobile device. Localization is based on analysing received signal strength and timing information of the radio transmissions detected by distributed radio sensors, which are based on software-defined radio technology. Challenges of such an approach are time synchronization of the sensors as well as detection and mitigation of multi-path signal propagation. We will discuss preliminary results of our approaches using real-world test-bed experiments.

Short Bio:
Torsten Braun got his Ph.D. degree from University of Karlsruhe (Germany) in 1993. From 1994 to 1995 he has been a guest scientist at INRIA Sophia-Antipolis (France). From 1995 to 1997 he has been working at the IBM European Networking Centre Heidelberg (Germany) as a project leader and senior consultant. He has been a full professor of Computer Science at the University of Bern (Switzerland) since 1998 and director of the Institute of Computer Science and Applied Mathematics at University of Bern from 2007 to 2011. He has been member of the SWITCH (Swiss education and research network) board of trustees since 2001.