Ultradense Cell-Free Massive MIMO for 6G: Technical Overview and Open Questions

HQ Ngo, G Interdonato, EG Larsson… - Proceedings of the …, 2024 - ieeexplore.ieee.org
Ultradense cell-free massive multiple-input multiple-output (CF-MMIMO) has emerged as a
promising technology expected to meet the future ubiquitous connectivity requirements and …

Massive synchrony in distributed antenna systems

EG Larsson - IEEE Transactions on Signal Processing, 2024 - ieeexplore.ieee.org
Distributed antennas must be phase-calibrated (phase-synchronized) for certain operations,
such as reciprocity-based joint coherent downlink beamforming, to work. We use rigorous …

BeamSync: Over-the-air Synchronization for distributed massive MIMO systems

UK Ganesan, R Sarvendranath… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In distributed massive multiple-input multiple-output (MIMO) systems, multiple
geographically separated access points (APs) communicate simultaneously with a user …

Distributed signal processing for extremely large-scale antenna array systems: State-of-the-art and future directions

Y Xu, EG Larsson, EA Jorswieck, X Li, S Jin… - arXiv preprint arXiv …, 2024 - arxiv.org
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the
functionalities of next generation wireless communication systems. However, as the number …

面向6G 通信感知一体化的固定与可移动天线技术

曾勇, 董珍君, 王蕙质, 朱立鹏, 洪子尧, 姜庆基… - 信号 …, 2024 - signal.ejournal.org.cn
多天线技术通过在收发端部署天线阵列, 从而提供额外的空间自由度(degrees of freedom,
DoFs), 大幅提升了无线通信的可靠性与有效性. 与此同时, 多天线技术应用于雷达感知领域 …

Phase calibration of distributed antenna arrays

EG Larsson, J Vieira - IEEE Communications Letters, 2023 - ieeexplore.ieee.org
Antenna arrays can be either reciprocity calibrated (R-calibrated), which facilitates
reciprocity-based beamforming, or fully calibrated (F-calibrated), which additionally …

Fixed and movable antenna technology for 6G integrated sensing and communication

Y Zeng, Z Dong, H Wang, L Zhu, Z Hong… - arXiv preprint arXiv …, 2024 - arxiv.org
By deploying antenna arrays at the transmitter/receiver to provide additional spatial-domain
degrees of freedom (DoFs), multi-antenna technology greatly improves the reliability and …

A Novel Energy Conservation Scheme for IoT Based Wireless Networks: A Use Case of E-Commerce Systems for Consumer Electronics

A Taneja, S Rani - IEEE Transactions on Consumer Electronics, 2024 - ieeexplore.ieee.org
The emerging consumer electronic products and sensor devices are involved in data driven
consumer applications. E-commerce is an important service application based on sensor …

RIS-Assisted THz MIMO Wireless System in the Presence of Direct Link for CV-QKD with Limited Quantum Memory

S Kumar, SP Dash - arXiv preprint arXiv:2410.16731, 2024 - arxiv.org
A reconfigurable intelligent surface (RIS)-aided multiple-input multiple-output (MIMO)
wireless communication system is considered in this paper wherein the transmitter, Alice …

Cell-Free Massive MIMO With Multi-Antenna Users and Phase Misalignments: A Novel Partially Coherent Transmission Framework

UK Ganesan, TT Vu, EG Larsson - IEEE Open Journal of the …, 2024 - ieeexplore.ieee.org
CELL-FREE massive multiple-input multiple-output (MIMO) is a promising technology for
next-generation communication systems. This work proposes a novel partially coherent (PC) …