Uncoordinated and Decentralized Processing in Extra-Large MIMO Arrays

Abolfazl Amiri; Carles Navarro Manchon; Elisabeth De Carvalho

doi:10.1109/LWC.2021.3120694

Uncoordinated and Decentralized Processing in Extra-Large MIMO Arrays

Abolfazl Amiri, Carles Navarro Manchon, Elisabeth De Carvalho

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We propose a decentralized receiver for extra-large multiple-input multiple-output (XL-MIMO) arrays. Our method operates with no central processing unit (CPU) and all the signal detection tasks are done in distributed nodes. We exploit a combined message-passing framework to design an uncoordinated detection scheme that overcomes three major challenges in the XL-MIMO systems: computational complexity, scalability and non-stationarities in user energy distribution. Our numerical evaluations show a significant performance improvement compared to benchmark distributed methods while operating very close to the centralized receivers.

Original language	English
Journal	I E E E Wireless Communications Letters
Volume	11
Issue number	1
Pages (from-to)	81-85
Number of pages	5
ISSN	2162-2337
DOIs	https://doi.org/10.1109/LWC.2021.3120694
Publication status	Published - 1 Jan 2022

Keywords

Array signal processing
Central Processing Unit
MIMO communication
Massive MIMO
Message-passing
Probability density function
Random variables
Receivers
Scalability
XL-MIMO.
decentralized receivers

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10.1109/LWC.2021.3120694

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title = "Uncoordinated and Decentralized Processing in Extra-Large MIMO Arrays",

abstract = "We propose a decentralized receiver for extra-large multiple-input multiple-output (XL-MIMO) arrays. Our method operates with no central processing unit (CPU) and all the signal detection tasks are done in distributed nodes. We exploit a combined message-passing framework to design an uncoordinated detection scheme that overcomes three major challenges in the XL-MIMO systems: computational complexity, scalability and non-stationarities in user energy distribution. Our numerical evaluations show a significant performance improvement compared to benchmark distributed methods while operating very close to the centralized receivers.",

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author = "Abolfazl Amiri and Manchon, {Carles Navarro} and {De Carvalho}, Elisabeth",

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T1 - Uncoordinated and Decentralized Processing in Extra-Large MIMO Arrays

AU - Amiri, Abolfazl

AU - Manchon, Carles Navarro

AU - De Carvalho, Elisabeth

PY - 2022/1/1

Y1 - 2022/1/1

N2 - We propose a decentralized receiver for extra-large multiple-input multiple-output (XL-MIMO) arrays. Our method operates with no central processing unit (CPU) and all the signal detection tasks are done in distributed nodes. We exploit a combined message-passing framework to design an uncoordinated detection scheme that overcomes three major challenges in the XL-MIMO systems: computational complexity, scalability and non-stationarities in user energy distribution. Our numerical evaluations show a significant performance improvement compared to benchmark distributed methods while operating very close to the centralized receivers.

AB - We propose a decentralized receiver for extra-large multiple-input multiple-output (XL-MIMO) arrays. Our method operates with no central processing unit (CPU) and all the signal detection tasks are done in distributed nodes. We exploit a combined message-passing framework to design an uncoordinated detection scheme that overcomes three major challenges in the XL-MIMO systems: computational complexity, scalability and non-stationarities in user energy distribution. Our numerical evaluations show a significant performance improvement compared to benchmark distributed methods while operating very close to the centralized receivers.

KW - Array signal processing

KW - Central Processing Unit

KW - MIMO communication

KW - Massive MIMO

KW - Message-passing

KW - Probability density function

KW - Random variables

KW - Receivers

KW - Scalability

KW - XL-MIMO.

KW - decentralized receivers

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DO - 10.1109/LWC.2021.3120694

M3 - Journal article

VL - 11

SP - 81

EP - 85

JO - I E E E Wireless Communications Letters

JF - I E E E Wireless Communications Letters

SN - 2162-2337

IS - 1

ER -

Uncoordinated and Decentralized Processing in Extra-Large MIMO Arrays

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Keywords

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Distributed Processing Methods for Extra Large Scale MIMO

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