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Dipl.-Ing. Thomas Kühne

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Thomas Kühne is a Phd student at the CommIT chair and holds a university degree (5-year Dipl.-Ing. equivalent to a M.Sc.) from the University of Technology Dresden. He has already gained professional research experience while working 3 years for the Fraunhofer Heinrich-Hertz-Institute in Berlin Germany. At the  Heinrich-Hertz-Institute he focused on developing prototypes for mm-wave communication and measurement devices for mm-wave channels. Thus he is experienced in hardware and signal-processing design for complex systems with high data rates.

Since 2015 he works for the Communications and Information Theory Group of Prof. Caire and is also working towards his own PhD degree. At the Technische Universität Berlin he is part of a team developing an innovative Massive MIMO platform. This platform can be used to investigate different aspects of systems with large number of antennas like hybrid analog/digital signal processing for multi-user-MIMO, efficient signal processing for zero-forcing precoding and more.

Publikationen

An Analog Module for Hybrid Massive MIMO Testbeds Demonstrating Beam Alignment Algorithms
Zitatschlüssel Kuhn1803:Analog
Autor Thomas Kühne and Giuseppe Caire
Buchtitel 22nd International ITG Workshop on Smart Antennas (WSA 2018)
Jahr 2018
DOI 10.5281/zenodo.1175891
Adresse Bochum, Germany
Zusammenfassung Hybrid analog-digital beamforming for massive MIMO is an important technology for millimeter-wave communication systems. Current experimentation of massive MIMO is based mainly on full digital solutions and in the sub-6GHz frequency range. The technology for millimeter-wave massive MIMO systems is not yet available to the broad research community. Due to the high path loss, sparsity of the channel, and restrictions of the hardware in the millimeter-wave band, new challenges in signal processing arise. One of these problems is the initial link acquisition also called beam alignment (BA). We present a hybrid analog-digital massive MIMO sub-6GHz testbed with 64 antennas. This testbed enables the investigation of challenges connected to a hybrid analog-digital architecture like the BA problem. We demonstrate multiple BA algorithms to show their advantages and disadvantages. The testbed is based on a self developed analog module with a high resolution of phase and magnitude settings. Our module can be connected to standard software defined radios (SDRs) and supports different types of hybrid architectures.
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Dipl-Ing. Thomas Kühne
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Tel.: +49(0)30 314 28460
Fax: +49(0)30 314 28320

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