Sum-Rate of Cell Free Massive MIMO Systems with Power Amplifier Non-Linearity
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
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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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) |
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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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1799138100751892480 |