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Performance evaluation of frequency division duplex (FDD) massive multiple input multiple output (MIMO) under different correlation models [PDF]
PeerJ Computer Science, 2022 Massive multiple-input multiple-output (massive-MIMO) is considered as the key technology to meet the huge demands of data rates in the future wireless communications networks.
Alaa M. Abdul-Hadi +4 more
doaj +2 more sources
Precoding and Beamforming Techniques in mmWave-Massive MIMO: Performance Assessment
IEEE Access, 2022 Massive MIMO and mmWave communication are the technologies for achieving 5G design goals. Fortunately, these two technologies share a symbiotic integration.
Tewelgn Kebede +4 more
doaj +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
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Design, Challenges and Developments for 5G Massive MIMO Antenna Systems at Sub 6-GHz Band: A Review
Nanomaterials, 2023 Massive multiple-input multiple-output (mMIMO) is a wireless access technique that has been studied and investigated in response to the worldwide bandwidth demand in the wireless communication sector (MIMO).
Sura Khalil Ibrahim +7 more
doaj +1 more source
Sensors, 2020 The global bandwidth shortage in the wireless communication sector has motivated the study and exploration of wireless access technology known as massive Multiple-Input Multiple-Output (MIMO).
Robin Chataut, Robert Akl
doaj +1 more source
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
Energy Efficiency of User-Centric, Cell-Free Massive MIMO-OFDM with Instantaneous CSI
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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Overview of Precoding Techniques for Massive MIMO
IEEE Access, 2021 Massive multiple-input multiple-output (MIMO) is playing a crucial role in the fifth generation (5G) and beyond 5G (B5G) communication systems. Unfortunately, the complexity of massive MIMO systems is tremendously increased when a large number of ...
Mahmoud A. Albreem +3 more
doaj +1 more source
Massive MIMO LEO Satellite Communications System
天地一体化信息网络, 2022 Extending massive multiple-input multiple-output (MIMO) technique to low earth orbit (LEO) satellite communication systems enables satellites to implement fl exible beamforming, which can make full use of the spatial degrees of freedom of massive MIMO ...
Kexin LI, Li YOU, Xiqi GAO
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Experimental Evaluations of TDD-Based Massive MIMO Deployment for Mobile Network Operators
IEEE Access, 2020 Massive Multiple Input Multiple Output (MIMO) is an essential component for future wireless cellular networks. One of its biggest advantages is to use the 5G spectrum more intelligently by extending both coverage (via high gain adaptive beamforming) and ...
Engin Zeydan, Omer Dedeoglu, Yekta Turk
doaj +1 more source