CPU-Cooperative Power Control Scheme for Scalable Cell-Free Massive MIMO Systems
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Soohyeong | - |
dc.contributor.author | Ahn, Seyoung | - |
dc.contributor.author | Park,Joohan | - |
dc.contributor.author | Youn, Jiseung | - |
dc.contributor.author | Kwon, Yongseok | - |
dc.contributor.author | Cho, Sunghyun | - |
dc.date.accessioned | 2024-07-18T05:00:26Z | - |
dc.date.available | 2024-07-18T05:00:26Z | - |
dc.date.issued | 2024-06 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.issn | 1558-2248 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/120036 | - |
dc.description.abstract | Cell-free massive multiple-input multiple-output (CF-mMIMO) can provide uniformly great service to user equipment (UE) by utilizing a large number of distributed access points (APs) connected to a single central processing unit (CPU). For addressing scalability and feasibility issues inherent in single-CPU CF-mMIMO systems, multiple-CPU CF-mMIMO (MC-CF-mMIMO) has been considered. However, the MC-CF-mMIMO system inevitably encounters performance degradation at the boundary area of the CPUs, referred to as the CPU edge. Cooperation among CPUs can improve the performance in the CPU edge region; however, scalability problems resurface owing to inter-CPU information sharing during the cooperation process. In this study, we propose a scalable CPU cooperation scheme that focuses on power control to address the performance degradation issue in the CPU edge region. Initially, we propose a policy estimation scheme for other CPUs to reduce the overhead of information sharing. Based on these estimated policies, each CPU can independently derive power control policies for the max-min optimization problem without simultaneous information sharing. Simulation results show that the proposed power control scheme achieves a performance improvement of up to 4.3234 dB in terms of CPU edge region performance and minimum spectral efficiency compared to baseline schemes based on the degree of CPU cooperation. IEEE | - |
dc.format.extent | 16 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Institute of Electrical and Electronics Engineers Inc. | - |
dc.title | CPU-Cooperative Power Control Scheme for Scalable Cell-Free Massive MIMO Systems | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1109/TWC.2024.3405585 | - |
dc.identifier.scopusid | 2-s2.0-85197615962 | - |
dc.identifier.bibliographicCitation | IEEE Transactions on Wireless Communications, pp 1 - 16 | - |
dc.citation.title | IEEE Transactions on Wireless Communications | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 16 | - |
dc.type.docType | Article in Press | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | cell-free massive MIMO | - |
dc.subject.keywordAuthor | Central Processing Unit | - |
dc.subject.keywordAuthor | CPU cooperation | - |
dc.subject.keywordAuthor | CPU edge region performance | - |
dc.subject.keywordAuthor | Degradation | - |
dc.subject.keywordAuthor | Information exchange | - |
dc.subject.keywordAuthor | Interference | - |
dc.subject.keywordAuthor | max-min power control | - |
dc.subject.keywordAuthor | Power control | - |
dc.subject.keywordAuthor | Precoding | - |
dc.subject.keywordAuthor | Scalability | - |
dc.subject.keywordAuthor | scalability | - |
dc.identifier.url | https://ieeexplore.ieee.org/document/10552910 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.