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A flexible 100-antenna testbed for Massive MIMO

Vieira, Joao LU ; Malkowsky, Steffen LU ; Nieman, Karl; Miers, Zachary LU ; Kundargi, Nikhil; Liu, Liang LU ; Wong, Ian; Öwall, Viktor LU ; Edfors, Ove LU and Tufvesson, Fredrik LU (2014) IEEE Globecom Workshop, 2014
Abstract
Massive multiple-input multiple-output (MIMO) is one of the main candidates to be included in the fifth generation (5G) cellular systems. For further system development it is desirable to have real-time testbeds showing possibilities and limitations of the technology. In this paper we describe the Lund University Massive MIMO testbed – LuMaMi. It is a flexible testbed where the base station operates with up to 100 coherent radio-frequency transceiver chains based on software radio technology. Orthogonal Frequency Division Multiplex (OFDM) based signaling is used for each of the 10 simultaneous users served in the 20 MHz bandwidth. Real time MIMO precoding and decoding is distributed across 50 Xilinx Kintex-7 FPGAs with PCI-Express... (More)
Massive multiple-input multiple-output (MIMO) is one of the main candidates to be included in the fifth generation (5G) cellular systems. For further system development it is desirable to have real-time testbeds showing possibilities and limitations of the technology. In this paper we describe the Lund University Massive MIMO testbed – LuMaMi. It is a flexible testbed where the base station operates with up to 100 coherent radio-frequency transceiver chains based on software radio technology. Orthogonal Frequency Division Multiplex (OFDM) based signaling is used for each of the 10 simultaneous users served in the 20 MHz bandwidth. Real time MIMO precoding and decoding is distributed across 50 Xilinx Kintex-7 FPGAs with PCI-Express interconnects. The unique features of this system are: (i) high throughput processing of 384 Gbps of real time baseband data in both the transmit and receive directions, (ii) low-latency architecture with channel estimate to precoder turnaround of less than 500 micro seconds, and (iii) a flexible

extension up to 128 antennas. We detail the design goals of the testbed, discuss the signaling and system architecture, and show initial measured results for a uplink Massive MIMO over-the-air transmission from four single-antenna UEs to 100 BS antennas. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Massive MIMO, testbed, system description, prototype, 5G, large array
conference name
IEEE Globecom Workshop, 2014
external identifiers
  • scopus:84946688322
DOI
10.1109/GLOCOMW.2014.7063446
language
English
LU publication?
yes
id
57735c53-37df-4495-933a-cb8d057db883 (old id 4857731)
date added to LUP
2014-12-08 15:52:11
date last changed
2017-11-14 09:50:28
@misc{57735c53-37df-4495-933a-cb8d057db883,
  abstract     = {Massive multiple-input multiple-output (MIMO) is one of the main candidates to be included in the fifth generation (5G) cellular systems. For further system development it is desirable to have real-time testbeds showing possibilities and limitations of the technology. In this paper we describe the Lund University Massive MIMO testbed – LuMaMi. It is a flexible testbed where the base station operates with up to 100 coherent radio-frequency transceiver chains based on software radio technology. Orthogonal Frequency Division Multiplex (OFDM) based signaling is used for each of the 10 simultaneous users served in the 20 MHz bandwidth. Real time MIMO precoding and decoding is distributed across 50 Xilinx Kintex-7 FPGAs with PCI-Express interconnects. The unique features of this system are: (i) high throughput processing of 384 Gbps of real time baseband data in both the transmit and receive directions, (ii) low-latency architecture with channel estimate to precoder turnaround of less than 500 micro seconds, and (iii) a flexible<br/><br>
extension up to 128 antennas. We detail the design goals of the testbed, discuss the signaling and system architecture, and show initial measured results for a uplink Massive MIMO over-the-air transmission from four single-antenna UEs to 100 BS antennas.},
  author       = {Vieira, Joao and Malkowsky, Steffen and Nieman, Karl and Miers, Zachary and Kundargi, Nikhil and Liu, Liang and Wong, Ian and Öwall, Viktor and Edfors, Ove and Tufvesson, Fredrik},
  keyword      = {Massive MIMO,testbed,system description,prototype,5G,large array},
  language     = {eng},
  title        = {A flexible 100-antenna testbed for Massive MIMO},
  url          = {http://dx.doi.org/10.1109/GLOCOMW.2014.7063446},
  year         = {2014},
}