Co-Existing/Cooperating Multicell Massive MIMO and Cell-Free Massive MIMO Deployments: Heuristic Designs and Performance Analysis

IF 6.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Open Journal of the Communications Society Pub Date : 2024-09-23 DOI:10.1109/OJCOMS.2024.3465878

Stefano Buzzi;Carmen D’Andrea;Li Wang;Ahmet Hasim Gokceoglu;Gunnar Peters

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引用次数: 0

Abstract

Cell-free massive MIMO (CF-mMIMO) systems represent a deeply investigated evolution from the conventional multicell co-located massive MIMO (MC-mMIMO) network deployments. Anticipating a gradual integration of CF-mMIMO systems alongside pre-existing MC-mMIMO network elements, this paper considers a scenario where both deployments coexist, in order to serve a large number of users using a shared set of frequencies. The investigation explores the impact of this co-existence on the network’s downlink performance, considering various degrees of mutual cooperation, precoder selection, and power control strategies. Moreover, to take into account the effect of the proposed cooperation scenarios on the fronthaul links, this paper also provides a fronthaul-aware heuristic association algorithm between users and network elements, which allows the fulfillment of the front-haul requirement on each link. The research is finally completed by extensive simulations, shedding light on the performance outcomes associated with the various levels of cooperation and several solutions delineated in the paper.

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共存/合作多小区大规模多输入多输出（MIMO）和无小区大规模多输入多输出（MIMO）部署：启发式设计和性能分析

无小区海量多输入多输出（CF-mMIMO）系统是传统多小区同地海量多输入多输出（MC-mMIMO）网络部署的深入研究。考虑到 CF-mMIMO 系统与原有 MC-mMIMO 网元的逐步集成，本文研究了两种部署并存的情况，以便使用一组共享频率为大量用户提供服务。考虑到不同程度的相互合作、前置编码器选择和功率控制策略，本文探讨了这种共存对网络下行链路性能的影响。此外，考虑到所提出的合作方案对前端链路的影响，本文还提供了用户与网元之间的前端链路感知启发式关联算法，该算法可满足每个链路的前端链路要求。最后，本文通过大量模拟，阐明了与各种合作水平相关的性能结果，以及本文所述的几种解决方案，从而完成了这项研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Open Journal of the Communications Society Multiple-

CiteScore

13.70

自引率

3.80%

发文量

审稿时长

10 weeks

期刊介绍： The IEEE Open Journal of the Communications Society (OJ-COMS) is an open access, all-electronic journal that publishes original high-quality manuscripts on advances in the state of the art of telecommunications systems and networks. The papers in IEEE OJ-COMS are included in Scopus. Submissions reporting new theoretical findings (including novel methods, concepts, and studies) and practical contributions (including experiments and development of prototypes) are welcome. Additionally, survey and tutorial articles are considered. The IEEE OJCOMS received its debut impact factor of 7.9 according to the Journal Citation Reports (JCR) 2023. The IEEE Open Journal of the Communications Society covers science, technology, applications and standards for information organization, collection and transfer using electronic, optical and wireless channels and networks. Some specific areas covered include: Systems and network architecture, control and management Protocols, software, and middleware Quality of service, reliability, and security Modulation, detection, coding, and signaling Switching and routing Mobile and portable communications Terminals and other end-user devices Networks for content distribution and distributed computing Communications-based distributed resources control.