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kuehne2020bringing


Thomas Kühne, Piotr Gawłowicz, Anatolij Zubow, Falko Dressler and Giuseppe Caire, "Demo: Bringing Hybrid Analog-Digital Beamforming to Commercial MU-MIMO WiFi Networks," Proceedings of 26th ACM International Conference on Mobile Computing and Networking (MobiCom 2020), Demo Session, Virtual Conference, September 2020.

Abstract

Commercial off-the-shelf (COTS) IEEE 802.11ac WiFi systems only use a low number of antennas. This limits the multi-user MIMO (MU-MIMO) performance and, hence, the throughput of such systems, especially in dense environments. We present a unique solution based on hybrid digital-analog (HDA) beamforming to overcome the limitation of COTS WiFi hardware and effectively increase the MU-MIMO gain and to unlock the potential of MU-MIMO in WiFi. We use COTS WiFi hardware in combination with a self-developed beamforming module and novel algorithms for the HDA approach, leveraging the MU-MIMO precoding of the WiFi system. The implemented control and signal processing software is fully transparent to the WiFi part, i.e., no protocol changes are needed. We demonstrate the increase in MU-MIMO gain using unmodified COTS end-user terminals.

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Thomas Kühne
Piotr Gawłowicz
Anatolij Zubow
Falko Dressler
Giuseppe Caire

BibTeX reference

@inproceedings{kuehne2020bringing,
    author = {K{\"{u}}hne, Thomas and Gawłowicz, Piotr and Zubow, Anatolij and Dressler, Falko and Caire, Giuseppe},
    title = {{Demo: Bringing Hybrid Analog-Digital Beamforming to Commercial MU-MIMO WiFi Networks}},
    publisher = {ACM},
    address = {Virtual Conference},
    booktitle = {26th ACM International Conference on Mobile Computing and Networking (MobiCom 2020), Demo Session},
    month = {9},
    year = {2020},
   }
   
   

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