Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity

Detalhes bibliográficos
Autor(a) principal: Mokhtari, Zahra
Data de Publicação: 2021
Outros Autores: Dinis, Rui
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/142603
Resumo: POCI-01-0145-FEDER-030588 SAICT-45-2017-02
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spelling Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-LinearityCell freehardware impairmentmassive MIMOnon-linearityOFDMpower amplifierwireless communicationsComputer Science(all)Materials Science(all)Engineering(all)POCI-01-0145-FEDER-030588 SAICT-45-2017-02Cell free (CF) massive multiple input multiple output (mMIMO) has been suggested as a key solution to meet the high data rate demands of future wireless communications. Studying the performance of these systems in practical scenarios such as in the presence of hardware impairments is of vital importance. In this paper, we study the effect of power amplifier non-linearity on the uplink and downlink sum-rate of CF mMIMO systems. We derive closed form expressions for the uplink and downlink achievable sum-rates of orthogonal frequency division multiplexing (OFDM) based CF mMIMO systems. Our results show that in the uplink the sum-rate does not increase unlimitedly as the number of access points (AP) increases, being upper bounded, contrarily to the ideal linear case. In fact, the rate of each user is limited by the distortion signal of its power amplifier. However, in the downlink, the sum-rate of the system with non-linear power amplifiers is not bounded and increases unlimitedly with the number of APs. Our results also indicate that for the same signal to distortion ratio (SDR) at the power amplifier output or the same normalized saturation level of the power amplifiers, the relative downlink sum-rate degradation is lower than the relative uplink sum-rate degradation (both with respect to their corresponding values in the ideal linear case). In fact, our results confirm that the user side power amplifier non-linearity has higher impact on the system performance than the power amplifier non-linearity on the AP antennas.DEE2010-A1 TelecomunicaçõesDEE - Departamento de Engenharia Electrotécnica e de ComputadoresRUNMokhtari, ZahraDinis, Rui2022-07-28T22:25:01Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article11application/pdfhttp://hdl.handle.net/10362/142603eng2169-3536PURE: 45670222https://doi.org/10.1109/ACCESS.2021.3120925info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:20:24Zoai:run.unl.pt:10362/142603Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:50:25.129801Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
title Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
spellingShingle Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
Mokhtari, Zahra
Cell free
hardware impairment
massive MIMO
non-linearity
OFDM
power amplifier
wireless communications
Computer Science(all)
Materials Science(all)
Engineering(all)
title_short Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
title_full Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
title_fullStr Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
title_full_unstemmed Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
title_sort Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
author Mokhtari, Zahra
author_facet Mokhtari, Zahra
Dinis, Rui
author_role author
author2 Dinis, Rui
author2_role author
dc.contributor.none.fl_str_mv DEE2010-A1 Telecomunicações
DEE - Departamento de Engenharia Electrotécnica e de Computadores
RUN
dc.contributor.author.fl_str_mv Mokhtari, Zahra
Dinis, Rui
dc.subject.por.fl_str_mv Cell free
hardware impairment
massive MIMO
non-linearity
OFDM
power amplifier
wireless communications
Computer Science(all)
Materials Science(all)
Engineering(all)
topic Cell free
hardware impairment
massive MIMO
non-linearity
OFDM
power amplifier
wireless communications
Computer Science(all)
Materials Science(all)
Engineering(all)
description POCI-01-0145-FEDER-030588 SAICT-45-2017-02
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01T00:00:00Z
2022-07-28T22:25:01Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/142603
url http://hdl.handle.net/10362/142603
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2169-3536
PURE: 45670222
https://doi.org/10.1109/ACCESS.2021.3120925
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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