Hierarchical beam training

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August undefined, 2024

WebIn order to align BS/UE beams, a hierarchical training approach that employs multi-resolution beam codebooks is considered. In the beam alignment process, we assume that the BS and the UE are synchronized (we refer to [22]–[24] for possible mmWave synchronization/initial access solutions), and the UE can feedback the 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 multi‐beam training with the presence of the sub ...

Web1 de jan. de 2024 · Beam training based on hierarchical codebook for millimeter wave (mmWave) massive MIMO is investigated. Unlike the existing work using the same hierarchical codebook to estimate different multi-path components (MPCs), dynamic hierarchical codebooks which are updated according to the estimated MPCs are adopted. Web22 de jan. de 2016 · In millimeter-wave communication, large antenna arrays are required to achieve high power gain by steering toward each other with narrow beams, which poses … greatmysteriesandthrillers.com

Beam Training Based on Dynamic Hierarchical Codebook for …

Webrate of beam training. Index Terms—Millimeter wave (mmWave) communications, massive MIMO, beam training, hierarchical codebook. I. INTRODUCTION M ILLIMETER wave (mmWave) massive MIMO con-sidered as a promising technology for future wireless communications has drawn global attention due to its wide band and high transmission … WebStatistics 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 … 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 … flood zone ae in florida

Near-Field Beam Training in THz Communications: The Merits of …

Deep Learning Based Beam Training for Extremely Large-Scale …

Web27 de jun. de 2024 · Another approach to reducing the beam training overhead is hierarchical beam training, which uses a fast codeword selection strategy based on a hierarchical codebook [38][39][40] [41] [42][43][44]. WebAbstract: In this paper, we consider a beam-training system where a base-station (BS) deployed with massive multi-input and multi-output (MIMO) array-antennas is leveraged … flood zone bluffton sc chartWeb6 de nov. de 2015 · DOI: 10.1109/TWC.2016.2520930 Corpus ID: 5965492; Hierarchical Codebook Design for Beamforming Training in Millimeter-Wave Communication @article{Xiao2015HierarchicalCD, title={Hierarchical Codebook Design for Beamforming Training in Millimeter-Wave Communication}, author={Zhenyu Xiao and Tong He and … great myrtle beach hotels

"Web21 de set. de 2024 · Existing beam training schemes rely on the far-field codebook, which is designed based on the far-field channel model. However, due to the large aperture of XL-RIS, the user is more likely to be in the near-field region of XL-RIS. The far-field codebook mismatches the near-field channel model. " - Hierarchical beam training

Hierarchical beam training

Fast Beam-Training Based on Huffman-Like Hierarchical Codebook …

Web27 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. Weband 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

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Web7 de out. de 2024 · Then we point out three critical criteria for XL-MIMO hierarchical beam training. Secondly, a novel spatial-chirp beam-aided codebook and corresponding hierarchical update policy are proposed. Thirdly, given the imperfect coverage and overlapping of spatial-chirp beams, we further design an enhanced hierarchical … Weba hierarchical beam training method, where wide beams are generated by activating a sub-array of the full-array. The beam training accuracy was further improved in [20] by …

Web14 de abr. de 2024 · Beam size B controls the number of candidate nodes to be retrieved. Larger B leads to better performance and heavier computation in the inference stage. As a result, Fig. 4 (a) shows, for MovieLens-20M, 5 or 10 is the better choice. Thus we set the beam size as 10 for MovieLens-20M. Web24 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 …

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 Web13 de dez. de 2024 · Accurate channel state information (CSI) acquisition is indispensable for mmWave massive MIMO systems to perform sophisticated signal processing. The existing channel estimation methods such as beam training and compressed sensing either have low accuracy or require considerably high training overhead. To achieve a fast yet …

WebBeam training based on hierarchical codebook for millimeter wave (mmWave) massive MIMO is investigated. Unlike the existing work using the same hierarchical codebook to …

WebBeam training based on hierarchical codebook for millimeter wave (mmWave) massive MIMO is investigated. Unlike the existing work using the same hierarchical codebook to estimate different multi-path components (MPCs), dynamic hierarchical codebooks which are updated according to the estimated MPCs are adopted. great myrtle crapemyrtle plantWeb21 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; great myrtle beach restaurantsWebObjective: To share the implementation experience of hierarchical first aid training scheme for elementary and middle school students in Baoan District of Shenzhen City and … flood zone by address pinellas countyWeb29 de set. de 2024 · In this letter, we study efficient near-field beam training design for the extremely large-scale array (XL-array) communication systems. Compared with the conventional far-field beam training method that searches for the best beam direction only, the near-field beam training is more challenging since it requires a beam search over … great myrtle treeWebSimultaneous Multiuser Beam Training Using Adaptive Hierarchical Codebook for mmWave Massive MIMO Abstract: In this paper, a simultaneous multiuser hierarchical beam … great myrtle bushWeb28 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 … great mysteries of the pastWeb12 de jan. de 2024 · Hierarchical multi-beam training with the pr esence of the. sub-connected hybrid beamforming architecture. Xinyang Li 1 Songjie Y ang 1 Wanting Lyu 1 … flood zone car wash