Skip to content

Serving 22 Users in Real-Time with a 128-Antenna Massive MIMO Testbed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publication2016 IEEE International Workshop on Signal Processing Systems (SiPS)
Subtitle of host publicationProceedings of meeting held 26-28 October 2016, Dallas, Texas, United States
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages7
ISBN (Electronic)9781509033614
ISBN (Print)9781509033621
DateAccepted/In press - 19 Aug 2016
DateE-pub ahead of print - 12 Dec 2016
DatePublished (current) - Jan 2017

Publication series

NameProceedings of the IEEE International Workshop on Signal Processing Systems (SiPS)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISSN (Print)2374-7390


This paper presents preliminary results for a novel 128-antenna massive Multiple-Input, Multiple-Output (MIMO) testbed developed through Bristol Is Open in collaboration with National Instruments and Lund University. We believe that the results presented here validate the adoption of massive MIMO as a key enabling technology for 5G and pave the way for further pragmatic research by the massive MIMO community. The testbed operates in real-time with a Long-Term Evolution (LTE)-like PHY in Time Division Duplex (TDD) mode and supports up to 24 spatial streams, providing an excellent basis for comparison with existing standards and complimentary testbeds. Through line-of-sight (LOS) measurements at 3.51 GHz in an indoor atrium environment with 12 user clients, an uncoded system sum-rate of 1.59 Gbps was achieved in real-time using a single 20 MHz LTE band, equating to 79.4 bits/s/Hz. In a subsequent indoor trial, 22 user clients were successfully served, which would equate to 145.6 bits/s/Hz using the same frame schedule. To the best of the author’s knowledge, these are the highest spectral efficiencies achieved for any wireless system to date.

    Research areas

  • Massive MU-MIMO, Testbed, Field trial, 5G, INDOOR

Download statistics

No data available



  • Full-text PDF (accepted author manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via IEEE at Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 10 MB, PDF document


View research connections

Related faculties, schools or groups