Maximum ratio and zero-forcing beamforming [Part 4, Fundamentals of mmWave communication]

Опубликовано: 10 Октябрь 2024
на канале: Wireless Future

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An antenna array can control the directivity and shape of the transmitted signal. The signal strength at the receiver is maximized using maximum ratio beamforming, to support higher data speeds. The strength can also be minimized using zero-forcing beamforming, to protect unintended receivers from disturbances. In the fourth video of this series, Prof. Emil Björnson demonstrates these categories experimentally using over-the-air transmission of a mmWave signal and explains how one achieves them by phase-shifting the transmitted signals. Theory and practical utilization fit together, in both line-of-sight and non-line-of-sight propagation. Beamforming is used in all 5G systems, both in sub-6 GHz and mmWave bands.

The experiments are carried out using the TMYTEK Developer Kit https://www.tmytek.com/solutions/mmwa... that the company kindly lent us. This is not a sponsored video.

Emil Björnson is an IEEE Fellow and a Professor of Wireless Communication at the KTH Royal Institute of Technology, Sweden. Website: http://ebjornson.com/research

#5g #6g #mmwave #beamforming #wireless #waves #communication #propagation #constructive #destructive #interference #zeroforcing #SNR