Cell-free massive MIMO: A survey

S Elhoushy, M Ibrahim… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
Towards a fully connected intelligent digital world, 5G and beyond networks experience a
new era of Internet of intelligence with connected people and things. This new era brings …

User-centric cell-free massive MIMO networks: A survey of opportunities, challenges and solutions

HA Ammar, R Adve, S Shahbazpanahi… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
Densification of network base stations is indispensable to achieve the stringent Quality of
Service (QoS) requirements of future mobile networks. However, with a dense deployment of …

Foundations of user-centric cell-free massive MIMO

ÖT Demir, E Björnson… - Foundations and Trends …, 2021 - nowpublishers.com
Imagine a coverage area where each mobile device is communicating with a preferred set of
wireless access points (among many) that are selected based on its needs and cooperate to …

White paper on broadband connectivity in 6G

N Rajatheva, I Atzeni, E Bjornson, A Bourdoux… - arXiv preprint arXiv …, 2020 - arxiv.org
This white paper explores the road to implementing broadband connectivity in future 6G
wireless systems. Different categories of use cases are considered, from extreme capacity …

[HTML][HTML] A survey on user-centric cell-free massive MIMO systems

S Chen, J Zhang, J Zhang, E Björnson, B Ai - Digital Communications and …, 2022 - Elsevier
The mobile data traffic has been exponentially growing during the last several decades. This
was enabled by the densification of the network infrastructure in terms of increased cell …

Local partial zero-forcing precoding for cell-free massive MIMO

G Interdonato, M Karlsson, E Björnson… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Cell-free Massive MIMO (multiple-input multiple-output) is a promising distributed network
architecture for 5G-and-beyond systems. It guarantees ubiquitous coverage at high spectral …

Energy-efficient power control in cell-free and user-centric massive MIMO at millimeter wave

M Alonzo, S Buzzi, A Zappone… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In a cell-free massive MIMO architecture a very large number of distributed access points
simultaneously and jointly serves a much smaller number of mobile stations; a variant of the …

Multiple access in cell-free networks: Outage performance, dynamic clustering, and deep reinforcement learning-based design

Y Al-Eryani, M Akrout, E Hossain - IEEE Journal on Selected …, 2020 - ieeexplore.ieee.org
In future cell-free (or cell-less) wireless networks, a large number of devices in a
geographical area will be served simultaneously in non-orthogonal multiple access …

[HTML][HTML] Issues, challenges, and research trends in spectrum management: A comprehensive overview and new vision for designing 6G networks

F Qamar, MUA Siddiqui, MHDN Hindia, R Hassan… - Electronics, 2020 - mdpi.com
With an extensive growth in user demand for high throughput, large capacity, and low
latency, the ongoing deployment of Fifth-Generation (5G) systems is continuously exposing …

Downlink resource allocation in multiuser cell-free MIMO networks with user-centric clustering

HA Ammar, R Adve, S Shahbazpanahi… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
In this paper, we optimize user scheduling, power allocation and beamforming in distributed
multiple-input multiple-output (MIMO) networks implementing user-centric clustering. We …