Hierarchical beam training
Web28 de set. de 2024 · For mmWave massive MIMO systems, the beam training method based on predefined codebooks has been widely adopted. However, this will incur extremely high training overhead [2]. To tackle this issue, a typical scheme based on hierarchical codebooks that contain wide beams and narrow beams was proposed in … Web13 de nov. de 2024 · Beam training based on hierarchical codebook for millimeter wave (mmWave) massive MIMO is investigated. Unlike the existing work using the same …
Hierarchical beam training
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Web17 de mar. de 2024 · In millimeter wave (mmWave) communications, the beamforming gains of large-scale antenna arrays are used to combat severe path losses and improve …
WebBut when it comes to design, visual hierarchy is related to all the elements you see in a design and how they are perceived in order of importance. The best examples of … WebThis paper presents the system model of THz UM-MIMO and introduces the schemes of beam training and beamspace MIMO for THz communications, and presents the corresponding fabrication techniques and illuminate the emerging applications benefiting from THz beamforming. Terahertz (THz) communications with a frequency band 0.1− 10 …
Web12 de jan. de 2024 · This study serves that aim, particularly on multi-beam training, with the output of this work can be regarded as baseband equivalent channel estimation. First, we present a novel ternary-tree-based fully-activated hierarchical codebook based on the sub-array division technique. Web21 de set. de 2024 · Two low-overhead hierarchical beam training schemes for near-field XL-MIMO system are proposed and an enhanced hierarchical training codebook via manifold optimization and alternative minimization is designed. Expand. Highly Influenced. PDF. View 8 excerpts, cites methods and background;
Web9 de jul. de 2024 · Two low-overhead hierarchical beam training schemes for near-field XL-MIMO system are proposed and an enhanced hierarchical training codebook via manifold optimization and alternative minimization is designed. Expand. Highly Influenced. PDF. View 5 excerpts, cites methods and background;
WebTo reduce the training overhead, a parallel beam alignment algorithm is proposed for the MU mmWave system with a hybrid structure. The proposed algorithm jointly exploits parallel beam alignment among different user-subsets and hierarchical beam training for each user-subset. Consequently, the training overhead is significantly reduced to 2log fish safety knifeWeb12 de mar. de 2024 · Download PDF Abstract: In this paper, multiuser beam training based on hierarchical codebook for millimeter wave massive multi-input multi-output is … fish safety in pregnancyWeband training data. Different from the existing hierarchical codebook training algorithms, we first use the beam training results from the previous layers to estimate the channel AOA or AOD at each layer and then we adaptively design a codeword in the current layer to align with the estimated AOA or AOD. Comparing with the existing beam training fishsaidfred.comWeb24 de fev. de 2024 · This inevitably incurs prohibitively high beam training overhead since it requires a two-dimensional (2D) beam search over both the angular and distance … candle with battery flameWebStatistics Definitions >. A hierarchical model is a model in which lower levels are sorted under a hierarchy of successively higher-level units. Data is grouped into clusters at one … candle with message insideWeb27 de set. de 2024 · To tackle this problem, we propose a deep learning-based beam training scheme where the near-field channel model and the near-field codebook are considered. To be specific, we first utilize the received signals corresponding to the far-field wide beams to estimate the optimal near-field beam. candle with birth date on itWeb10 de fev. de 2024 · To address this challenge, in this paper, a novel hierarchical beam training scheme with dynamic training levels is proposed to optimize the performance of multi-hop THz links. In fact, an optimization problem is formulated to maximize the overall spectral efficiency of the multi-hop THz link by dynamically and jointly selecting the … fish saham chart