UWB Geo-Regioning in Rich Multipath Environment

Authors

Frank Althaus, Florian Trösch, and Armin Wittneben

Reference

IEEE Vehicular Technology Conference, VTC Fall 2005, Dallas, USA, Sept. 2005.

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Abstract

We introduce geo-regioning as a method to achieve rough localization in asynchronous UWB networks. The approach is to localize the transmitter position by means of the multipath components in the received channel impulse response (signature). To show the principle feasibility of this approach a first regioning algorithm is introduced and tested with measured data. Therefore, a measurement campaign in a rich multipath environment has been performed. A high number of signatures originating from different regions in a room have been collected. The regioning algorithm presented here is based on the a priori knowledge of the average power delay profiles of the different regions. The performance results show that almost all regions can be localized at reasonable SNR and error probability. We conclude that the geo-regioning approach is a promising alternative or supplement to classical time of arrival based approaches in UWB networks.

Keywords

UWB, localization, multipath channel


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