Results 31 to 40 of about 20,641 (239)
Reconfigurable Intelligent Surface-Assisted Cell-Free Massive MIMO Systems Over Spatially-Correlated Channels [PDF]
IEEE Transactions on Wireless Communications, 2021 Cell-Free Massive multiple-input multiple-output (MIMO) and reconfigurable intelligent surface (RIS) are two promising technologies for application to beyond-5G networks.
Trinh Van Chien +4 more
semanticscholar +1 more source
Impact of Channel Aging on Cell-Free Massive MIMO Over Spatially Correlated Channels [PDF]
IEEE Transactions on Wireless Communications, 2021 In this paper, we investigate the impact of channel aging on the performance of cell-free (CF) massive multiple-input multiple-output (MIMO) systems with both spatial correlation and pilot contamination.
Jiakang Zheng +3 more
semanticscholar +1 more source
ICT Express, 2021 One of promising transmission technologies for beyond-5G wireless communication is cell-free massive MIMO where all the access nodes (ANs) cooperate to coherently serve all the user equipments (UEs).
Seung-Eun Hong
doaj +1 more source
Cell-Free Massive MIMO with Energy-Efficient Downlink Operation in Industrial IoT
Mathematics, 2022 Cell-free massive Multi-input Multi-output (MIMO) can offer higher spectral efficiency compared with cellular massive MIMO by providing services to users through the collaboration of distributed APs, and cell-free massive MIMO systems with distributed ...
Xiaomin Chen +4 more
doaj +1 more source
Pilot Decontamination Processing in Cell-Free Massive MIMO [PDF]
IEEE Communications Letters, 2021 5 pages, 3 figures, to appear IEEE Communications ...
Alberto Alvarez Polegre +2 more
openaire +3 more sources
IEEE Access, 2021 As the mobile networks become even denser and the traffic demand is increasing drastically, it is becoming more heterogeneous. Recently, it is intensive to investigate the Cell-Free Massive multiple-input multiple-output Massive (MIMO) system, where a ...
Jue An, Feng Zhao
doaj +1 more source
Cell-Free Massive MIMO in O-RAN: Energy-Aware Joint Orchestration of Cloud, Fronthaul, and Radio Resources [PDF]
IEEE Journal on Selected Areas in Communications, 2023 For the energy-efficient deployment of cell-free massive MIMO functionality in a practical wireless network, the end-to-end (from radio site to the cloud) energy-aware operation is essential. In line with the cloudification and virtualization in the open
Ozlem Tugfe Demir +3 more
semanticscholar +1 more source
Compute-and-forward transmission scheme in cell-free massive MIMO systems
ICT Express, 2023 Cell-free massive multi-input-multi-output (MIMO) systems comprise a large number of distributed access points (APs) to serve a small number of user equipments (UEs). In this paper, compute-and-forward (CF) is investigated for uplink in cell-free massive
Hua Jiang, Linghong Kong, Sidan Du
doaj +1 more source
Structured Massive Access for Scalable Cell-Free Massive MIMO Systems [PDF]
IEEE Journal on Selected Areas in Communications, 2020 How to meet the demand for increasing number of users, higher data rates, and stringent quality-of-service (QoS) in the beyond fifth-generation (B5G) networks? Cell-free massive multiple-input multiple-output (MIMO) is considered as a promising solution,
Shuaifei Chen +4 more
semanticscholar +1 more source
Telecom, 2022 In this paper, we propose a hybrid beamforming architecture with constant phase shifters (CPSs) for uplink cell-free millimetre-wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems based on exploiting antenna selection to reduce power ...
Abdulrahman Al Ayidh +4 more
doaj +1 more source