Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems

Xiangjun Ma; Xianfu Lei; Xinyuan Zhang; P. Takis Mathiopoulos; Kai Yu; Xiaohu Tang

doi:10.1109/ICC45855.2022.9839196

Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems

Xiangjun Ma
, Xianfu Lei^*
, Xinyuan Zhang
, P. Takis Mathiopoulos
, Kai Yu
, Xiaohu Tang

^*Corresponding author for this work

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

1 Scopus citations

Abstract

A scalable cell-free massive MIMO (SCF-mMIMO) system where all user equipments (UEs) and access points (APs) employ finite resolution digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) over correlated Rician fading is presented and analysed in this paper. A closed-form expression for the uplink (UL) spectral efficiency (SE) using maximal-ratio combining (MRC) detection for centralized scheme is first derived. Moreover, a novel low complexity partial MMSE (P-MMSE) detector is proposed, which achieves very similar SE performance and maintains much less computational complexity in comparison with the original partial MMSE (P-MMSE) detector. In addition, a joint algorithm consisting of AP cluster formation, pilot assignment, and power control policy is proposed, which yields much higher SE performance than random pilot assignment and user-group based pilot assignment policies do, and meanwhile improves the quality of service (QoS) fairness for all accessing UEs as compared to the equal power transmit policy.

Original language	English
Title of host publication	ICC 2022 - IEEE International Conference on Communications
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	962-967
Number of pages	6
ISBN (Electronic)	9781538683477
DOIs	https://doi.org/10.1109/ICC45855.2022.9839196
State	Published - 2022
Externally published	Yes

Publication series

Name	IEEE International Conference on Communications
Volume	2022-May
ISSN (Print)	1550-3607

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

TDD
correlated Rician fading
finite resolution ADCs/DACs
scalable cell-free massive MIMO

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICC45855.2022.9839196

Cite this

Ma, X., Lei, X., Zhang, X., Mathiopoulos, P. T., Yu, K., & Tang, X. (2022). Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems. In ICC 2022 - IEEE International Conference on Communications (pp. 962-967). (IEEE International Conference on Communications; Vol. 2022-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC45855.2022.9839196

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title = "Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems",

abstract = "A scalable cell-free massive MIMO (SCF-mMIMO) system where all user equipments (UEs) and access points (APs) employ finite resolution digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) over correlated Rician fading is presented and analysed in this paper. A closed-form expression for the uplink (UL) spectral efficiency (SE) using maximal-ratio combining (MRC) detection for centralized scheme is first derived. Moreover, a novel low complexity partial MMSE (P-MMSE) detector is proposed, which achieves very similar SE performance and maintains much less computational complexity in comparison with the original partial MMSE (P-MMSE) detector. In addition, a joint algorithm consisting of AP cluster formation, pilot assignment, and power control policy is proposed, which yields much higher SE performance than random pilot assignment and user-group based pilot assignment policies do, and meanwhile improves the quality of service (QoS) fairness for all accessing UEs as compared to the equal power transmit policy.",

keywords = "TDD, correlated Rician fading, finite resolution ADCs/DACs, scalable cell-free massive MIMO",

author = "Xiangjun Ma and Xianfu Lei and Xinyuan Zhang and Mathiopoulos, \{P. Takis\} and Kai Yu and Xiaohu Tang",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.",

year = "2022",

doi = "10.1109/ICC45855.2022.9839196",

language = "English",

series = "IEEE International Conference on Communications",

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

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}

Ma, X, Lei, X, Zhang, X, Mathiopoulos, PT, Yu, K & Tang, X 2022, Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems. in ICC 2022 - IEEE International Conference on Communications. IEEE International Conference on Communications, vol. 2022-May, Institute of Electrical and Electronics Engineers Inc., pp. 962-967. https://doi.org/10.1109/ICC45855.2022.9839196

Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems. / Ma, Xiangjun; Lei, Xianfu; Zhang, Xinyuan et al.
ICC 2022 - IEEE International Conference on Communications. Institute of Electrical and Electronics Engineers Inc., 2022. p. 962-967 (IEEE International Conference on Communications; Vol. 2022-May).

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

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AU - Mathiopoulos, P. Takis

AU - Yu, Kai

AU - Tang, Xiaohu

PY - 2022

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AB - A scalable cell-free massive MIMO (SCF-mMIMO) system where all user equipments (UEs) and access points (APs) employ finite resolution digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) over correlated Rician fading is presented and analysed in this paper. A closed-form expression for the uplink (UL) spectral efficiency (SE) using maximal-ratio combining (MRC) detection for centralized scheme is first derived. Moreover, a novel low complexity partial MMSE (P-MMSE) detector is proposed, which achieves very similar SE performance and maintains much less computational complexity in comparison with the original partial MMSE (P-MMSE) detector. In addition, a joint algorithm consisting of AP cluster formation, pilot assignment, and power control policy is proposed, which yields much higher SE performance than random pilot assignment and user-group based pilot assignment policies do, and meanwhile improves the quality of service (QoS) fairness for all accessing UEs as compared to the equal power transmit policy.

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Uplink Detection and Accessing Scheme for Scalable Cell-Free Massive MIMO Systems

Abstract

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Keywords

ASJC Scopus subject areas

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