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New methods for device localization with directional antennas in future wireless networks

The doctoral dissertation of Dipl.-Ing. Janis Werner investigates the potential of localization with directional antennas in future wireless networks.

Many emerging technologies, such as robots, unmanned aerial vehicles, and augmented reality rely heavily on the availability of continuous and highly accurate location information. In many areas, the devices that have to be localized are mobile devices subject to stringent energy consumption restrictions. However, with the advancement of the Internet of things paradigm, an increasing number of these devices is connected to the wireless networks, enabling localization within these networks.

While the current wireless networks already allow for elementary localization, the performance of these localization schemes is far from sufficient for modern applications. In particular, this localization is mostly based on range measurements. However, the base stations of future wireless networks will be equipped with directional antennas. Primarily intended to increase the communications throughput of the networks, these directional antennas also enable the estimation of the direction of arrival (DoA), i.e., the angle between the device to be localized and the base station. These DoA estimates, in turn, can be used to complement the range-based measurements, thereby increasing the localization performance of the networks.

“We are currently observing a trend where accurate location information is becoming increasingly important in many application areas. At the same time, there is a clear trend towards wireless networks that are very well suited for obtaining this location information. It is thus only natural to try and bring these two pieces together,” Dipl.-Ing. Janis Werner explains.

Overall, the dissertation aims to provide insights into the benefits of localization and location tracking using directional antennas, accompanied by specific DoA estimation, localization and location tracking solutions, as well as design guidelines for implementing localization systems in next generation wireless networks.

Public defence of a doctoral dissertation on Monday, 23 November

Dipl.-Ing. Janis Werner’s doctoral dissertation in the field of wireless communications entitled ’Directional Antenna System-based DoA/RSS Estimation, Localization and Tracking in Future Wireless Networks: Algorithms and Performance Analysis‘ will be publicly examined at the Faculty of Computing and Electrical Engineering of Tampere University of Technology (TUT) in room TB224 in the Tietotalo building (address: Korkeakoulunkatu 1, Tampere, Finland) at 12 noon on Monday, 23 November 2015. The opponent will be Assistant Professor Emil Björnson (Linköping University, Linköping, Sweden). Professor Mikko Valkama from the Department of Electronics and Communications Engineering at TUT will act as the Chairman. 

Janis Werner (29) was born in Berlin, Germany, and works as a researcher at the Department of Electronics and Communications Engineering of TUT. 

Further information: Janis Werner,

The dissertation is available online at:

News submitted by: Tiina Leivo
Keywords: education and studies, science and research, device localization, directional antennas, wireless networks