Results 41 to 50 of about 8,525,169 (240)
IEEE Access, 2021 A cell-free massive multiple-input multiple-output (MIMO) network-assisted full-duplex (NAFD) system has been proposed to satisfy the exploding demand of higher data transmission speed and more efficient communication.
Yanfeng Hu +3 more
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Communication-Sensing Region for Cell-Free Massive MIMO ISAC Systems [PDF]
IEEE Transactions on Wireless Communications, 2023 This paper investigates the system model and the transmit beamforming design for the Cell-Free massive multi-input multi-output (MIMO) integrated sensing and communication (ISAC) system.
Weihao Mao +5 more
semanticscholar +1 more source
Spectral Efficiency Improvement and Power Control Optimization of Massive MIMO Networks
IEEE Access, 2021 Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication.
Xiu Zhang, Hao Qi, Xin Zhang, Liang Han
doaj +1 more source
A GNN Approach for Cell-Free Massive MIMO
GLOBECOM 2022 - 2022 IEEE Global Communications Conference, 2022 Beyond 5G wireless technology Cell-Free Massive MIMO (CFmMIMO) downlink relies on carefully designed precoders and power control to attain uniformly high rate coverage. Many such power control problems can be calculated via second order cone programming (SOCP). In practice, several order of magnitude faster numerical procedure is required because power
Lou Salaün +3 more
openaire +3 more sources
Cell-Free Massive MIMO Meets OTFS Modulation [PDF]
IEEE Transactions on Communications, 2022 We provide the first-ever performance evaluation of orthogonal time frequency space (OTFS) modulation in cell-free massive multiple-input multiple-output (MIMO) systems. To investigate trade-off between performance and overhead, we apply embedded pilot-aided and superimposed pilot-based channel estimation methods.
Mohammadali Mohammadi +2 more
openaire +5 more sources
Uplink Performance of Cell-Free Massive MIMO with Access Point Selections [PDF]
EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2018 Cell-free massive multiple-input multiple-output (MIMO), in which a massive number of access points (APs) distributed over a large area serve a smaller number of users in the same time and frequency resources, inherits advantages from conventional ...
Toan Doan, Long Nguyen
doaj +1 more source
IEEE Access, 2022 Massive Multiple-Input Multiple-Output (MaMIMO) communication networks are recently being investigated for hltheir high potential for localisation services.
Sibren De Bast +2 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2022 The fifth generation (5G) of telecommunications networks is currently commercially deployed. One of their core enabling technologies is cellular Massive Multiple-Input-Multiple-Output (M-MIMO) systems.
Lazaros Alexios Iliadis +5 more
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Asynchronous Cell-Free Massive MIMO With Rate-Splitting [PDF]
IEEE Journal on Selected Areas in Communications, 2022 In practical cell-free (CF) massive multiple-input multiple-output (MIMO) networks with distributed and low-cost access points, the asynchronous arrival of signals at the user equipments increases multi-user interference that degrades the system ...
Jia-Kang Zheng +5 more
semanticscholar +1 more source
Resource allocation for cell-free networks with reflective intelligent surfaces [PDF]
, 2022 openThe recently commercialized fifth-generation (5G) wireless communication networks achieved many improvements, including air interface enhancement, spectrum expansion, and network intensification by several key technologies, such as massive multiple ...
RAYRI, AKRAM
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