Cell-Free Massive MIMO for Future Wireless Networks

面向未来无线网络的无蜂窝大规模 MIMO

• 批准号: EP/X013162/1
• 负责人: Pei Xiao
• 金额: $ 72.77万
• 依托单位: University of Surrey
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX013162%2F1
• 关键词: Cell; Free; Massive; MIMO; Future

To support a wide range of envisioned applications, including autonomous vehicles, the Internet of Things, and immersive technologies, future wireless technologies must meet demanding requirements for higher spectral and energy efficiency, lower end-to-end latency and massive connectivity as well as uniform user experience. Given the constraints on the available resources, the current inflexible, network-centric cellular networks cannot fulfil those disparate performance objectives. Even in massive MIMO cellular systems there remains an inherent bottleneck for cell-edge users. The recently emerged cell-free massive MIMO (CF-mMIMO) concept is a game changer and represents a paradigm shift in the network architecture. In CF-mMIMO, cell boundaries are removed by distributing a large number of centrally connected access points over a wide service area: the resulting global network becomes fully user-centric and flexible. This provides important potential benefits, including: 1) high quality uniform user experience due to the user-centric approach; 2) superior spectral and energy efficiency through joint processing; 3) reduced latency due to distributed processing; 4) exceptional coverage probability due to distributed access points. However, there are key challenges that need to be addressed to realise these underlying benefits of CF-MaMIMO. These challenges constitute major obstacles to keep CFmMIMO from being practically deployable. This research project aims to address those fundamental challenges. The proposed techniques will transform CF-MaMIMO into a fully user-centric, scalable, flexible system to embrace emerging AI-empowered technologies. This will enable CF-MaMIMO to support the wide range of envisioned applications in 6G and beyond. This project will benefit from strong industrial support from BT and ZTE as well as from world-leading international advisory group.

为了支持广泛的设想应用程序，包括自动驾驶汽车，物联网和沉浸式技术，未来的无线技术必须满足较高的光谱和能源效率，较低的端到端延迟和庞大的连接性以及统一的用户体验的要求。鉴于对可用资源的限制，当前不灵活的以网络为中心的蜂窝网络无法实现那些不同的绩效目标。即使在庞大的MIMO蜂窝系统中，对于细胞边缘用户来说，仍然存在固有的瓶颈。最近出现的无细胞大规模MIMO（CF-MIMO）概念是游戏规则改变者，代表网络体系结构的范式转移。在CF-MIMO中，通过在广泛的服务领域分发大量中央连接的访问​​点来删除单元边界：所得的全球网络变得完全以用户为中心和灵活。这提供了重要的潜在好处，包括：1）由于以用户为中心的方法，高质量的统一用户体验； 2）通过关节加工的优质光谱和能源效率； 3）由于分布式处理而降低了延迟； 4）由于分布式访问点而引起的特殊覆盖概率。但是，需要解决一些关键挑战，以实现CF-Mamimo的这些基本好处。这些挑战构成了阻止CFMMIMO实际上可部署的主要障碍。该研究项目旨在应对这些基本挑战。所提出的技术将CF-Mamimo转变为完全以用户为中心的，可扩展，灵活的系统，以采用新兴的AI授权技术。这将使CF-Mamimo能够支持6G及以后的各种设想应用程序。该项目将受益于BT和中兴通讯的强大工业支持以及世界领先的国际咨询小组。

项目成果

Uniform-Distributed Constellation Codebook Design for High-Capacity Visible Light Communications

• DOI: 10.1109/lcomm.2023.3316453
• 发表时间: 2023-11
• 期刊: IEEE Communications Letters
• 作者: Lisu Yu;Jiajia Qian;Yiming Gui;Zilong Liu;Pei Xiao;Yuhao Wang;Zhenghai Wang

Deep Reinforcement Learning-Based Sum Rate Fairness Trade-Off for Cell-Free mMIMO

• DOI: 10.1109/tvt.2022.3230041
• 发表时间: 2023-05
• 期刊: IEEE Transactions on Vehicular Technology
• 影响因子: 6.8
• 作者: M. Rahmani;M. Bashar;M. Dehghani;A. Akbari;Pei Xiao;R. Tafazolli;M. Debbah

Multi-IRS Assisted Multi-Cluster Wireless Powered IoT Networks

• DOI: 10.1109/twc.2022.3228017
• 发表时间: 2023-07
• 期刊: IEEE Transactions on Wireless Communications
• 影响因子: 10.4
• 作者: Zheng Chu;Pei Xiao;D. Mi;Wanming Hao;Yue Xiao;Lie-liang Yang

Sustainable Edge Node Computing Deployments in Distributed Manufacturing Systems

• DOI: 10.1109/tce.2023.3328949
• 发表时间: 2024-02
• 期刊: IEEE Transactions on Consumer Electronics
• 影响因子: 4.3
• 作者: Shidrokh Goudarzi;Seyed Ahmad Soleymani;M. Anisi;Anish Jindal;Fateme Dinmohammadi;Pei Xiao

Energy-Efficient Task Offloading in RIS-Aided HetNets With Wireless Backhaul

• DOI: 10.1109/lcomm.2023.3299380
• 发表时间: 2023-09
• 期刊: IEEE Communications Letters
• 作者: Li Zhang;Jinping Niu;Yiyao Wang;Gaojie Chen;Tao Gu;Yanyan Li