Large scale antenna selection and precoding for interference exploitation
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Published version
Author(s)
Amadori, Pierluigi Vito
Masouros, Christos
Type
Journal Article
Abstract
We propose several low-complexity transmit antenna selection (TAS) and precoding schemes for massive multi-input multi-output (M-MIMO). It is well established that large antenna arrays in M-MIMO lead to particularly high hardware overheads as they require an equally large number of radio-frequency chains, and antenna selection is envisaged as a solution to reducing this hardware complexity. Accordingly, in the proposed schemes, both hardware and computational complexity of M-MIMO systems are addressed by jointly optimizing TAS and precoding. We first introduce a mixed-integer programming approach that simultaneously identifies the transmitting antennas subset and solves the precoding problem, by employing a unified metric based on constructive interference (CI) concept. We then propose three sub-optimal techniques that allow a reduction of the computational complexity required to solve the joint optimization. Our analyses and results prove that the proposed joint TAS and precoding schemes based on CI exploitation are able to outperform the state-of-the-art, while providing a favorable performance-complexity tradeoff.
Date Issued
2017-10-01
Date Acceptance
2017-06-18
Citation
IEEE Transactions on Communications, 2017, 65 (10), pp.4529-4542
ISSN
0090-6778
Publisher
Institute of Electrical and Electronics Engineers
Start Page
4529
End Page
4542
Journal / Book Title
IEEE Transactions on Communications
Volume
65
Issue
10
Copyright Statement
© 2017 The Author(s). This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000413137400034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Telecommunications
Engineering
Massive MIMO
multiuser MIMO
antenna selection
interference optimization
GREEN SIGNAL POWER
MIMO SYSTEMS
MASSIVE MIMO
MULTIUSER MIMO
DIRECTIONAL MODULATION
ENERGY EFFICIENCY
FADING CHANNELS
BEAMSPACE-MIMO
TRANSMIT
DOWNLINK
Publication Status
Published
Date Publish Online
2017-06-28