Results 1 to 10 of about 770 (147)
Efficient User-Serving Scheme in the User-Centric Cell-Free Massive MIMO System [PDF]
Sensors, 2022 A cell-free massive multiple input multiple output (MIMO) system is an attractive network model that is in the spotlight in 5G and future communication systems.
Ji-Hye Oh +5 more
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On Scalability of FDD-Based Cell-Free Massive MIMO Framework [PDF]
Sensors, 2023 Cell-free massive multiple-input multiple-output (MIMO) systems have the potential of providing joint services, including joint initial access, efficient clustering of access points (APs), and pilot allocation to user equipment (UEs) over large coverage ...
Beenish Hassan, Sobia Baig, Saad Aslam
doaj +4 more sources
On the Security of Cell-Free Massive MIMO Networks [PDF]
SensorsThe rapid growth of wireless devices, the expansion of the Internet of Things, and the aggregate demand for Ultra-Reliable Low-Latency communications (URLLC) are driving the improvement of next-generation wireless systems.
Hanaa Mohammed +4 more
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User-Centric Cell-Free Massive MIMO with Low-Resolution ADCs for Massive Access [PDF]
SensorsThis paper proposes a heuristic association algorithm between access points (APs) and user equipment (UE) in user-centric cell-free massive multiple-input-multiple-output (MIMO) systems, specifically targeting scenarios where UEs share the same frequency
Jin-Woo Kim +7 more
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Energy Efficiency of User-Centric, Cell-Free Massive MIMO-OFDM with Instantaneous CSI [PDF]
Entropy, 2022 In the user-centric, cell-free, massive multi-input, multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) system, a large number of deployed access points (APs) serve user equipment (UEs) simultaneously, using the same time–frequency ...
Tongzhou Han, Danfeng Zhao
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The Downlink Performance for Cell-Free Massive MIMO with Instantaneous CSI in Slowly Time-Varying Channels [PDF]
Entropy, 2021 In centralized massive multiple-input multiple-output (MIMO) systems, the channel hardening phenomenon can occur, in which the channel behaves as almost fully deterministic as the number of antennas increases.
Tongzhou Han, Danfeng Zhao
doaj +2 more sources
Ubiquitous cell-free Massive MIMO communications [PDF]
EURASIP Journal on Wireless Communications and Networking, 2019 Since the first cellular networks were trialled in the 1970s, we have witnessed an incredible wireless revolution. From 1G to 4G, the massive traffic growth has been managed by a combination of wider bandwidths, refined radio interfaces, and network ...
Giovanni Interdonato +4 more
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Scalable Cell-Free Massive MIMO Systems [PDF]
IEEE Transactions on Communications, 2020 To appear in IEEE Transactions on Communications, 14 pages, 6 ...
Luca Sanguinetti, Emil Bjornson
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A Review on Cell-Free Massive MIMO Systems
Electronics (Switzerland), 2023 Cell-free massive multiple-input multiple-output (CF mMIMO) can be considered as a potential physical layer technology for future wireless networks since it can benefit from all the advantages of distributed antenna systems (DASs) and network MIMOs, such as macro-diversity gain, high channel capacity, and link reliability.
Daniel Castanheira +2 more
exaly +3 more sources
Modified Conjugate Beamforming for Cell-Free Massive MIMO [PDF]
IEEE Wireless Communications Letters, 2019 The work of A. Lozano was supported in part by MINECO/FEDER, UE under Project TEC2015-66228-P, and in part by the European Research Council through H2020 Framework Programme/ERC under Grant 694974.
Aliazam Abbasfar +2 more
exaly +3 more sources