Results 31 to 40 of about 7,667 (173)
Reconfigurable intelligent surface based hybrid precoding for THz communications
Intelligent and Converged Networks, 2022 Benefiting from the growth of the bandwidth, Terahertz (THz) communication can support the new application with explosive requirements of the ultra-high-speed rates for future 6G wireless systems. In order to compensate for the path loss of high frequency, massive multiple-input multiple-output (MIMO) can be utilized for high array gains by beamforming.
Lu, Yu, Hao, Mo, MAcKenzie, Richard
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MmWave Massive MIMO Based Wireless Backhaul for 5G Ultra-Dense Network [PDF]
, 2015 Ultra-dense network (UDN) has been considered as a promising candidate for future 5G network to meet the explosive data demand. To realize UDN, a reliable, Gigahertz bandwidth, and cost-effective backhaul connecting ultra-dense small-cell base stations ...
Dai, Linglong +5 more
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Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission
IET Microwaves, Antennas & Propagation, 2011 A hybrid multiple-input multiple-output (MIMO) scheme capable of switching between non-precoded transmission and covariance-based precoded transmission is proposed. Such a hybrid scheme is desired as the covariance-based precoding gain is insignificant when transmission takes place in lowly correlated channels.
Halmi, Mohd Hairi +2 more
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Energy-Efficient Hybrid Precoding for mmWave Multi-User Systems [PDF]
2018 IEEE International Conference on Communications (ICC), 2018 This paper aims to study an energy-efficiency (EE) maximization hybrid precoding (HP) design for mmWave multi-user (MU) systems where the analog precoding (AP) matrix is realized by a number of switches and phase shifters so that a connection between an RF chain and a transmit antenna can be switched off for energy saving. By explicitly considering the
Ha, Vu Nguyen +2 more
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IEEE Access, 2019 In millimeter-wave (mmWave)-based massive multiple-input-multiple-output (MIMO) systems, hybrid precoding is considered one of the indispensable techniques in the next generation wireless communication systems (5G) to reduce the number of radio-frequency
Mengqian Tian +5 more
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Hybrid Precoding/Combining for mmWave MIMO Systems With Hybrid Array Architecture
IEEE Access, 2023 Utilizing hybrid precoding/combining for subarray (SA) architectures in millimeter-wave (mmWave) multi-input multi-output (MIMO) systems offers reduced hardware cost and power consumption when compared with that for full array (FA) architectures, although the spectral efficiency is lower.
Mohamed Alouzi +3 more
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Spectral Efficiency Optimization For Millimeter Wave Multi-User MIMO Systems
, 2018 As a key enabling technology for 5G wireless, millimeter wave (mmWave) communication motivates the utilization of large-scale antenna arrays for achieving highly directional beamforming. However, the high cost and power consumption of RF chains stands in
Hong, Mingyi, Shi, Qingjiang
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Hybrid Precoding Algorithm for High Spectral Efficiency in mm-Wave MIMO Systems
Guangtongxin yanjiu, 2022 In mm-wave massive Multiple Input Multiple Output (MIMO) systems, in order to further improve the spectral efficiency of hybrid precoding in fully connected structure, an Alternate Minimization based on Gradient Descent (GD-AltMin) hybrid precoding ...
Wei ZHOU, Qiu-yan YANG
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Energy-Efficient Hybrid Precoding With Low Complexity for mmWave Massive MIMO Systems
IEEE Access, 2019 Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) utilizes large antenna arrays and is considered a promising technology for fifth-generation (5G) and beyond wireless communication systems.
Yang Liu +5 more
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CNN-Based Hybrid Precoding Design with Geometric Mean Decomposition
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022 <p>Communications over millimeter-wave (mmWave) frequencies is a key technology for the fifth generation (5G) cellular networks due to the large bandwidth available at mmWave bands. The short wavelength of mmWave bands enables large antenna arrays to be placed on the transceivers which forms massive multiple-input multiple-output (MIMO).
Abugubba, Mahmoud A +3 more
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