Efficient DSP and Circuit Architectures for Massive MIMO : State of the Art and Future Directions
Van Der Perre, Liesbet LU ; Liu, Liang LU
and Larsson, Erik G.
(2018)
In IEEE Transactions on Signal Processing
66(18).
p.4717-4736
- Abstract
Massive MIMO is a compelling wireless access concept that relies on the use of an excess number of base-station antennas, relative to the number of active terminals. This technology is a main component of 5G New Radio and addresses all important requirements of future wireless standards: a great capacity increase, the support of many simultaneous users, and improvement in energy efficiency. Massive MIMO requires the simultaneous processing of signals from many antenna chains, and computational operations on large matrices. The complexity of the digital processing has been viewed as a fundamental obstacle to the feasibility of Massive MIMO in the past. Recent advances on system-algorithm-hardware co-design have led to extremely... (More)
Massive MIMO is a compelling wireless access concept that relies on the use of an excess number of base-station antennas, relative to the number of active terminals. This technology is a main component of 5G New Radio and addresses all important requirements of future wireless standards: a great capacity increase, the support of many simultaneous users, and improvement in energy efficiency. Massive MIMO requires the simultaneous processing of signals from many antenna chains, and computational operations on large matrices. The complexity of the digital processing has been viewed as a fundamental obstacle to the feasibility of Massive MIMO in the past. Recent advances on system-algorithm-hardware co-design have led to extremely energy-efficient implementations. These exploit opportunities in deeply-scaled silicon technologies and perform partly distributed processing to cope with the bottlenecks encountered in the interconnection of many signals. For example, prototype ASIC implementations have demonstrated zero-forcing precoding in real time at a 55 mW power consumption (20 MHz bandwidth, 128 antennas, and multiplexing of 8 terminals). Coarse and even error-prone digital processing in the antenna paths permits a reduction of consumption with a factor of 2 to 5. This article summarizes the fundamental technical contributions to efficient digital signal processing for Massive MIMO. The opportunities and constraints on operating on low-complexity RF and analog hardware chains are clarified. It illustrates how terminals can benefit from improved energy efficiency. The status of technology and real-life prototypes discussed. Open challenges and directions for future research are suggested.
(Less)
- author
- Van Der Perre, Liesbet
LU
; Liu, Liang
LU
and Larsson, Erik G.
- organization
- publishing date
- 2018-09-15
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Antenna arrays, circuits, MIMO communication
- in
- IEEE Transactions on Signal Processing
- volume
- 66
- issue
- 18
- article number
- 8416771
- pages
- 20 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85050393579
- ISSN
- 1053-587X
- DOI
- 10.1109/TSP.2018.2858190
- language
- English
- LU publication?
- yes
- id
- 2eabbc8f-3277-48c2-bce1-3a70517bf9fc
- date added to LUP
- 2018-08-28 14:25:34
- date last changed
- 2024-04-01 09:31:11
@article{2eabbc8f-3277-48c2-bce1-3a70517bf9fc,
abstract = {{<p>Massive MIMO is a compelling wireless access concept that relies on the use of an excess number of base-station antennas, relative to the number of active terminals. This technology is a main component of 5G New Radio and addresses all important requirements of future wireless standards: a great capacity increase, the support of many simultaneous users, and improvement in energy efficiency. Massive MIMO requires the simultaneous processing of signals from many antenna chains, and computational operations on large matrices. The complexity of the digital processing has been viewed as a fundamental obstacle to the feasibility of Massive MIMO in the past. Recent advances on system-algorithm-hardware co-design have led to extremely energy-efficient implementations. These exploit opportunities in deeply-scaled silicon technologies and perform partly distributed processing to cope with the bottlenecks encountered in the interconnection of many signals. For example, prototype ASIC implementations have demonstrated zero-forcing precoding in real time at a 55 mW power consumption (20 MHz bandwidth, 128 antennas, and multiplexing of 8 terminals). Coarse and even error-prone digital processing in the antenna paths permits a reduction of consumption with a factor of 2 to 5. This article summarizes the fundamental technical contributions to efficient digital signal processing for Massive MIMO. The opportunities and constraints on operating on low-complexity RF and analog hardware chains are clarified. It illustrates how terminals can benefit from improved energy efficiency. The status of technology and real-life prototypes discussed. Open challenges and directions for future research are suggested.</p>}},
author = {{Van Der Perre, Liesbet and Liu, Liang and Larsson, Erik G.}},
issn = {{1053-587X}},
keywords = {{Antenna arrays; circuits; MIMO communication}},
language = {{eng}},
month = {{09}},
number = {{18}},
pages = {{4717--4736}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Signal Processing}},
title = {{Efficient DSP and Circuit Architectures for Massive MIMO : State of the Art and Future Directions}},
url = {{http://dx.doi.org/10.1109/TSP.2018.2858190}},
doi = {{10.1109/TSP.2018.2858190}},
volume = {{66}},
year = {{2018}},
}