A tutorial on extremely large-scale MIMO for 6G: Fundamentals, signal processing, and applications
Extremely large-scale multiple-input-multiple-output (XL-MIMO), which offers vast spatial
degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth …
degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth …
User-centric cell-free massive MIMO networks: A survey of opportunities, challenges and solutions
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 …
Service (QoS) requirements of future mobile networks. However, with a dense deployment of …
Foundations of user-centric cell-free massive MIMO
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 …
wireless access points (among many) that are selected based on its needs and cooperate to …
Wireless energy transfer in RIS-aided cell-free massive MIMO systems: Opportunities and challenges
In future 6G mobile networks, the Internet-of-Everything (IoE) is expected to provide
extremely massive connectivity for small battery-powered devices. Indeed, massive devices …
extremely massive connectivity for small battery-powered devices. Indeed, massive devices …
[HTML][HTML] A survey on user-centric cell-free massive MIMO systems
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 …
was enabled by the densification of the network infrastructure in terms of increased cell …
Application of cell-free massive MIMO in 5G and beyond 5G wireless networks: A survey
In recent times, the rapid growth in mobile subscriptions and the associated demand for high
data rates fuels the need for a robust wireless network design to meet the required capacity …
data rates fuels the need for a robust wireless network design to meet the required capacity …
Cell-free massive MIMO-OFDM for high-speed train communications
Cell-free (CF) massive multiple-input multiple-output (MIMO) systems show great potentials
in low-mobility scenarios, due to cell boundary disappearance and strong macro diversity …
in low-mobility scenarios, due to cell boundary disappearance and strong macro diversity …
A review of energy efficiency and power control schemes in ultra-dense cell-free massive MIMO systems for sustainable 6G wireless communication
The traditional multiple input multiple output (MIMO) systems cannot provide very high
Spectral Efficiency (SE), Energy Efficiency (EE), and link reliability, which are critical to …
Spectral Efficiency (SE), Energy Efficiency (EE), and link reliability, which are critical to …
Next-Generation Multiple Access With Cell-Free Massive MIMO
To meet the unprecedented mobile traffic demands of future wireless networks, a paradigm
shift from conventional cellular networks to distributed communication systems is imperative …
shift from conventional cellular networks to distributed communication systems is imperative …
Distributed resource allocation optimization for user-centric cell-free MIMO networks
We develop two distributed downlink resource allocation algorithms for user-centric, cell-
free, spatially-distributed, multiple-input multiple-output (MIMO) networks. In such networks …
free, spatially-distributed, multiple-input multiple-output (MIMO) networks. In such networks …