Results 11 to 20 of about 1,722,156 (269)
IEEE Access, 2023 In this paper, we investigate hybrid beamforming and resource allocation design problems for uplink millimeter wave (mmWave) multi-user (MU) massive multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems.
Hsin-Hsiang Tseng +2 more
doaj +2 more sources
Joint Design of Hybrid Beamforming and Phase Shifts for IRS-Assisted Multi-User mmWave Systems [PDF]
SensorsThis paper presents a joint design approach for intelligent reflecting surface (IRS)-assisted multi-user millimeter-wave (mmWave) systems. Our goal is to maximize the sum-rate of all users by optimizing the hybrid beamforming at the base station and the ...
Ran Zhang, Ye Wang
doaj +2 more sources
Hybrid Beamforming With Sub-arrayed MIMO Radar: Enabling Joint Sensing and Communication at mmWave Band [PDF]
, 2018 In this paper, we propose a beamforming design for dual-functional radar-communication (DFRC) systems at the millimeter wave (mmWave) band, where hybrid beamforming and sub-arrayed MIMO radar techniques are jointly exploited.
Liu, Fan, Masouros, Christos
core +4 more sources
Optimized shear wave generation using hybrid beamforming methods. [PDF]
Ultrasound Med Biol, 2014 Elasticity imaging is a medical imaging modality that measures tissue elasticity as an aid in the diagnosis of certain diseases. Shear wave-based methods have been developed to perform elasticity measurements in soft tissue. These methods often use the radiation force mechanism of focused ultrasound to induce shear waves in soft tissue such as liver ...
Nabavizadeh A +3 more
europepmc +4 more sources
Lattice-Based mmWave Hybrid Beamforming [PDF]
IEEE Transactions on Communications, 2021 Conventional hybrid precoding and combining based transceivers require a large number of high-resolution radio frequency (RF) phase shifters (PSs), which impose prohibitive hardware costs and power consumption. To address the above issue, both partially connected RF PSs and low-resolution PSs have been proposed. However, the performance limits of these
Shanxiang Lyu +4 more
openaire +3 more sources
A deep learning driven hybrid beamforming method for millimeter wave MIMO system
Digital Communications and Networks, 2023 The hybrid beamforming is a promising technology for the millimeter wave MIMO system, which provides high spectrum efficiency, high data rate transmission, and a good balance between transmission performance and hardware complexity.
Jienan Chen +5 more
doaj +1 more source
Advanced Hybrid Beamforming Technique in MU-MIMO Systems
Applied Sciences, 2020 This paper proposes a high performance wireless commmunication technology in MU-MIMO systems. The millimeter wave (mmWave) communication technology was considered for the future wireless communication systems such as the fifth-generation new radio (5G NR)
Seong-Joon Shim +5 more
doaj +1 more source
Multi-Hop RIS-Empowered Terahertz Communications: A DRL-Based Hybrid Beamforming Design [PDF]
IEEE Journal on Selected Areas in Communications, 2021 Wireless communication in the TeraHertz band (0.1–10 THz) is envisioned as one of the key enabling technologies for the future sixth generation (6G) wireless communication systems scaled up beyond massive multiple input multiple output (Massive-MIMO ...
Chongwen Huang +7 more
semanticscholar +1 more source
Precision planter monitoring system based on mobile communication network
IET Networks, EarlyView., 2022 Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley +1 more source
Hybrid Beamforming for Massive MIMO: A Survey [PDF]
IEEE Communications Magazine, 2017 Hybrid multiple-antenna transceivers, which combine large-dimensional analog pre/postprocessing with lower-dimensional digital processing, are the most promising approach for reducing the hardware cost and training overhead in massive MIMO systems. This paper provides a comprehensive survey of the various incarnations of such structures that have been ...
Molisch, Andreas F. +7 more
openaire +2 more sources