Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO

Thong Nhat Tran; Giovanni Interdonato; Daniel Benevides Da Costa; Beongku An

doi:10.1109/GCWkshps58843.2023.10465078

Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO

Thong Nhat Tran
, Giovanni Interdonato
, Daniel Benevides Da Costa
, Beongku An^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

This paper evaluates the uplink spectral efficiency (SE) achieved by a reconfigurable intelligent surface (RIS)-aided cell-free massive MIMO system with max-min fairness (MMF) power allocation. We provide an exact closed-form expression for an achievable SE expression which assumes maximum ratio receive combining at the access points (APs) and centralized large-scale fading decoding at the central processing unit. The derived SE expression also accounts for imperfect channel estimation and spatially correlated Ricean fading channels for both direct (APs-users) and cascaded (APs-RISs-users) links. Alongside this, we provide a generalized SE expression and evaluate the performance achieved by local partial minimum mean-squared error combining. Finally, we optimally solve the RIS phase-shift selection problem in order to maximize the aggregate channel gains, and derive a closed-form solution to the MMF power allocation problem. Simulation results validate the effectiveness of the proposed framework in enhancing the unlink SE with resnect to various benchmarks.

Original language	English
Title of host publication	2023 IEEE Globecom Workshops, GC Wkshps 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	726-731
Number of pages	6
ISBN (Electronic)	9798350370218
DOIs	https://doi.org/10.1109/GCWkshps58843.2023.10465078
State	Published - 2023
Externally published	Yes
Event	2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023 - Kuala Lumpur, Malaysia Duration: 4 Dec 2023 → 8 Dec 2023

Publication series

Name	2023 IEEE Globecom Workshops, GC Wkshps 2023

Conference

Conference	2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023
Country/Territory	Malaysia
City	Kuala Lumpur
Period	4/12/23 → 8/12/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

Cell-free massive MIMO
max-min fairness power control
reconfigurable intelligent surface
spectral efficiency

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering
Communication

Access to Document

10.1109/GCWkshps58843.2023.10465078

Cite this

@inproceedings{8f0fe285410e4d47a824b34b32d7c9e4,

title = "Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO",

abstract = "This paper evaluates the uplink spectral efficiency (SE) achieved by a reconfigurable intelligent surface (RIS)-aided cell-free massive MIMO system with max-min fairness (MMF) power allocation. We provide an exact closed-form expression for an achievable SE expression which assumes maximum ratio receive combining at the access points (APs) and centralized large-scale fading decoding at the central processing unit. The derived SE expression also accounts for imperfect channel estimation and spatially correlated Ricean fading channels for both direct (APs-users) and cascaded (APs-RISs-users) links. Alongside this, we provide a generalized SE expression and evaluate the performance achieved by local partial minimum mean-squared error combining. Finally, we optimally solve the RIS phase-shift selection problem in order to maximize the aggregate channel gains, and derive a closed-form solution to the MMF power allocation problem. Simulation results validate the effectiveness of the proposed framework in enhancing the unlink SE with resnect to various benchmarks.",

keywords = "Cell-free massive MIMO, max-min fairness power control, reconfigurable intelligent surface, spectral efficiency",

author = "Tran, \{Thong Nhat\} and Giovanni Interdonato and \{Da Costa\}, \{Daniel Benevides\} and Beongku An",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023 ; Conference date: 04-12-2023 Through 08-12-2023",

year = "2023",

doi = "10.1109/GCWkshps58843.2023.10465078",

language = "English",

series = "2023 IEEE Globecom Workshops, GC Wkshps 2023",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "726--731",

booktitle = "2023 IEEE Globecom Workshops, GC Wkshps 2023",

address = "United States",

}

Tran, TN, Interdonato, G, Da Costa, DB & An, B 2023, Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO. in 2023 IEEE Globecom Workshops, GC Wkshps 2023. 2023 IEEE Globecom Workshops, GC Wkshps 2023, Institute of Electrical and Electronics Engineers Inc., pp. 726-731, 2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023, Kuala Lumpur, Malaysia, 4/12/23. https://doi.org/10.1109/GCWkshps58843.2023.10465078

Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO. / Tran, Thong Nhat; Interdonato, Giovanni; Da Costa, Daniel Benevides et al.
2023 IEEE Globecom Workshops, GC Wkshps 2023. Institute of Electrical and Electronics Engineers Inc., 2023. p. 726-731 (2023 IEEE Globecom Workshops, GC Wkshps 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO

AU - Tran, Thong Nhat

AU - Interdonato, Giovanni

AU - Da Costa, Daniel Benevides

AU - An, Beongku

PY - 2023

Y1 - 2023

N2 - This paper evaluates the uplink spectral efficiency (SE) achieved by a reconfigurable intelligent surface (RIS)-aided cell-free massive MIMO system with max-min fairness (MMF) power allocation. We provide an exact closed-form expression for an achievable SE expression which assumes maximum ratio receive combining at the access points (APs) and centralized large-scale fading decoding at the central processing unit. The derived SE expression also accounts for imperfect channel estimation and spatially correlated Ricean fading channels for both direct (APs-users) and cascaded (APs-RISs-users) links. Alongside this, we provide a generalized SE expression and evaluate the performance achieved by local partial minimum mean-squared error combining. Finally, we optimally solve the RIS phase-shift selection problem in order to maximize the aggregate channel gains, and derive a closed-form solution to the MMF power allocation problem. Simulation results validate the effectiveness of the proposed framework in enhancing the unlink SE with resnect to various benchmarks.

AB - This paper evaluates the uplink spectral efficiency (SE) achieved by a reconfigurable intelligent surface (RIS)-aided cell-free massive MIMO system with max-min fairness (MMF) power allocation. We provide an exact closed-form expression for an achievable SE expression which assumes maximum ratio receive combining at the access points (APs) and centralized large-scale fading decoding at the central processing unit. The derived SE expression also accounts for imperfect channel estimation and spatially correlated Ricean fading channels for both direct (APs-users) and cascaded (APs-RISs-users) links. Alongside this, we provide a generalized SE expression and evaluate the performance achieved by local partial minimum mean-squared error combining. Finally, we optimally solve the RIS phase-shift selection problem in order to maximize the aggregate channel gains, and derive a closed-form solution to the MMF power allocation problem. Simulation results validate the effectiveness of the proposed framework in enhancing the unlink SE with resnect to various benchmarks.

KW - Cell-free massive MIMO

KW - max-min fairness power control

KW - reconfigurable intelligent surface

KW - spectral efficiency

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M3 - Conference contribution

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BT - 2023 IEEE Globecom Workshops, GC Wkshps 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023

Y2 - 4 December 2023 through 8 December 2023

ER -

Max-Min Fairness Power Allocation in Uplink RIS-Aided Cell-Free Massive MIMO

Abstract

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Bibliographical note

Keywords

ASJC Scopus subject areas

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