eprintid: 1471439
rev_number: 28
eprint_status: archive
userid: 608
dir: disk0/01/47/14/39
datestamp: 2016-06-23 12:21:13
lastmod: 2021-09-26 22:51:51
status_changed: 2017-03-22 08:55:02
type: article
metadata_visibility: show
creators_name: Amadori, PV
creators_name: Amadori, PV
creators_name: Masouros, C
title: Interference driven antenna selection for Massive Multi-User MIMO
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: Interference,
MIMO,
Signal to noise ratio,
Phase shift keying,
Transmitting antennas,
Complexity theory,
multiuser multiple-input multiple-output (MU-MIMO),
Antenna selection (AS),
interference optimization,
massive multiple-input multiple-output (M-MIMO)
note: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
abstract: Low-complexity linear precoders are known to be close-to-optimal for massive multi-input multi-output (M-MIMO) systems. However, the large number of antennas at the transmitter imposes high computational burdens and high hardware overloads. In line with the above, in this paper we propose a low complexity antenna selection (AS) scheme which selects the antennas that maximize constructive interference between the users. Our analyses show that the proposed AS algorithm, in combination with a simple matched filter (MF) precoder at the transmitter, is able to achieve better performances than systems equipped with a more complex channel inversion (CI) precoder and computationally expensive AS techniques. First, we give an analytical definition of constructive and destructive interference, based on the phase of the received signals from phase-shifted-keying (PSK) modulated transmissions. Then, we introduce the proposed antenna selection algorithm, which identifies the antenna subset with the highest constructive interference, maximizing the power received by the user. In our studies, we derive the computational burden of the proposed technique with a rigorous and thorough analysis and we identify a closed form expression of the upper bound received power at the user side. In addition, we evaluate in detail the power benefits of the proposed transmission scheme by defining an efficiency metric based on the achieved throughput. The results presented in this paper prove that antenna selection and green radio concepts can be jointly used for power efficient M-MIMO, as they lead to significant power savings and complexity reductions.
date: 2016-08
official_url: http://dx.doi.org/10.1109/TVT.2015.2477457
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_id: 1055558
doi: 10.1109/TVT.2015.2477457
lyricists_name: Amadori, Pierluigi
lyricists_name: Masouros, Christos
lyricists_id: PVAMA53
lyricists_id: CMASO14
actors_name: Amadori, Pierluigi
actors_id: PVAMA53
actors_role: owner
full_text_status: public
publication: IEEE Transactions on Vehicular Technology
volume: 65
number: 8
pagerange: 5944-5958
issn: 0018-9545
citation:        Amadori, PV;    Amadori, PV;    Masouros, C;      (2016)    Interference driven antenna selection for Massive Multi-User MIMO.                   IEEE Transactions on Vehicular Technology , 65  (8)   pp. 5944-5958.    10.1109/TVT.2015.2477457 <https://doi.org/10.1109/TVT.2015.2477457>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1471439/1/as_m_mimo.pdf