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Hybrid_Beamforming_Analysis_Based_on_MIMO_Channel_Measurements_at_28GHz_EISENBEIS_2020.pdf (147.28 kB)

Hybrid Beamforming Analysis Based on MIMO Channel Measurements at 28 GHz

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posted on 13.07.2020 by Joerg Eisenbeis, Magnus Tingulstad, Nicolai Kern, Zsolt Kollár, Jerzy Kowalewski, Pablo Ramos López, Thomas Zwick
Hybrid beamforming systems represent an efficient
architectural solution to realize massive multiple-input multiple-output (MIMO) communication systems in the centimeter wave (cmW) and millimeter wave (mmW) region. These hybrid beamforming systems separate the beamforming process into a digital and analog beamforming network. The analog beamforming networks can be realized by different architectural solutions, which demand dedicated algorithms to determine the complex weighting factors in the digital and analog domain. To date, novel hybrid beamforming architectures and algorithms are solely compared in numerical simulations based on statistical channel models. These abstract channel models simplify the complicated electromagnetic propagation process, thereby not exactly reconstructing the wireless channel. Within this work, we present a measurement-based evaluation of hybrid beamforming algorithms and compare them with numerical results gained from a statistical path-based MIMO channel model. The results show that by adjustment of the channel model parameter the simulation achieves a good match with the measured maximum achievable spectral efficiencies.

Funding

TowARds Advanced bicmos NanoTechnology platforms for rf and thz applicatiOns

European Commission

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Collaborative project: Electronic systems for next-generation radar and communication solutions - TARANTO subproject: Hybrid MIMO beamforming for high-data-rate radio communication systems

Federal Ministry of Education and Research

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History

Email Address of Submitting Author

joerg.eisenbeis@kit.edu

ORCID of Submitting Author

0000-0003-0394-0260

Submitting Author's Institution

Karlsruhe Institute of Technology

Submitting Author's Country

Germany

Licence

Exports