Polynomial expansion of the precoder for power minimization in large-scale MIMO systems

Handle URI:
http://hdl.handle.net/10754/621364
Title:
Polynomial expansion of the precoder for power minimization in large-scale MIMO systems
Authors:
Sifaou, Houssem ( 0000-0003-0630-7073 ) ; Kammoun, Abla ( 0000-0002-0195-3159 ) ; Sanguinetti, Luca; Debbah, Merouane; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
This work focuses on the downlink of a single-cell large-scale MIMO system in which the base station equipped with M antennas serves K single-antenna users. In particular, we are interested in reducing the implementation complexity of the optimal linear precoder (OLP) that minimizes the total power consumption while ensuring target user rates. As most precoding schemes, a major difficulty towards the implementation of OLP is that it requires fast inversions of large matrices at every new channel realizations. To overcome this issue, we aim at designing a linear precoding scheme providing the same performance of OLP but with lower complexity. This is achieved by applying the truncated polynomial expansion (TPE) concept on a per-user basis. To get a further leap in complexity reduction and allow for closed-form expressions of the per-user weighting coefficients, we resort to the asymptotic regime in which M and K grow large with a bounded ratio. Numerical results are used to show that the proposed TPE precoding scheme achieves the same performance of OLP with a significantly lower implementation complexity. © 2016 IEEE.
KAUST Department:
Electrical Engineering Program
Citation:
Sifaou H, Kammoun A, Sanguinetti L, Debbah M, Alouini M-S (2016) Polynomial expansion of the precoder for power minimization in large-scale MIMO systems. 2016 IEEE International Conference on Communications (ICC). Available: http://dx.doi.org/10.1109/ICC.2016.7510948.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2016 IEEE International Conference on Communications (ICC)
Conference/Event name:
2016 IEEE International Conference on Communications, ICC 2016
Issue Date:
26-Jul-2016
DOI:
10.1109/ICC.2016.7510948
Type:
Conference Paper
Appears in Collections:
Conference Papers; Electrical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorSifaou, Houssemen
dc.contributor.authorKammoun, Ablaen
dc.contributor.authorSanguinetti, Lucaen
dc.contributor.authorDebbah, Merouaneen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-11-03T06:58:35Z-
dc.date.available2016-11-03T06:58:35Z-
dc.date.issued2016-07-26en
dc.identifier.citationSifaou H, Kammoun A, Sanguinetti L, Debbah M, Alouini M-S (2016) Polynomial expansion of the precoder for power minimization in large-scale MIMO systems. 2016 IEEE International Conference on Communications (ICC). Available: http://dx.doi.org/10.1109/ICC.2016.7510948.en
dc.identifier.doi10.1109/ICC.2016.7510948en
dc.identifier.urihttp://hdl.handle.net/10754/621364-
dc.description.abstractThis work focuses on the downlink of a single-cell large-scale MIMO system in which the base station equipped with M antennas serves K single-antenna users. In particular, we are interested in reducing the implementation complexity of the optimal linear precoder (OLP) that minimizes the total power consumption while ensuring target user rates. As most precoding schemes, a major difficulty towards the implementation of OLP is that it requires fast inversions of large matrices at every new channel realizations. To overcome this issue, we aim at designing a linear precoding scheme providing the same performance of OLP but with lower complexity. This is achieved by applying the truncated polynomial expansion (TPE) concept on a per-user basis. To get a further leap in complexity reduction and allow for closed-form expressions of the per-user weighting coefficients, we resort to the asymptotic regime in which M and K grow large with a bounded ratio. Numerical results are used to show that the proposed TPE precoding scheme achieves the same performance of OLP with a significantly lower implementation complexity. © 2016 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titlePolynomial expansion of the precoder for power minimization in large-scale MIMO systemsen
dc.typeConference Paperen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2016 IEEE International Conference on Communications (ICC)en
dc.conference.date22 May 2016 through 27 May 2016en
dc.conference.name2016 IEEE International Conference on Communications, ICC 2016en
dc.contributor.institutionDipartimento di Ingegneria dell'Informazione, University of Pisa, Pisa, Italyen
dc.contributor.institutionLarge Networks and System Group (LANEAS), CentraleSupélec, Université Paris-Saclay, Gif-sur-Yvette, Franceen
dc.contributor.institutionMathematical and Algorithmic Sciences Lab, Huawei France RandD, Paris, Franceen
kaust.authorSifaou, Houssemen
kaust.authorKammoun, Ablaen
kaust.authorAlouini, Mohamed-Slimen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.