Hierarchical beam training
WebSimultaneous Multiuser Beam Training Using Adaptive Hierarchical Codebook for mmWave Massive MIMO Abstract: In this paper, a simultaneous multiuser hierarchical beam … 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
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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 … 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
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.
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 … Web13 de abr. de 2024 · We propose a hierarchical ... The dataset has been used for training a hierarchical ML model at ... Zeiss Plan-ApoChromat 40×, NA = 1.3) and sent to a tube lens (TL1). Then, a Beam ...
Web1 de dez. de 2024 · To benefit from both parallel beam alignment among different user-subsets and hierarchical beam training for each user-subset, multiple RF chains of the …
WebarXiv:2301.11570v1 [cs.IT] 27 Jan 2024 Chirp-based Hierarchical Beam Training for Extremely Large-Scale Massive MIMO Xu Shi 1, Jintao Wang1,2, Zhi Sun , Jian Song1,2 … bollard 1m highWeb26 de dez. de 2024 · Simulation results show that the proposed LLRR beam training significantly reduces the training time compared to the state-of-the-art and achieves gains of ≈ 1.5 bps/Hz and ≈ 9.8 bps/Hz ... In this paper, we propose hierarchical transmit beam sequencing method for synchronization signals, that enables beam combining at the ... glycine cleavage system p-proteinWeb7 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 … bollaram municipality property taxWeband 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 bollaram property taxWeb2 de mar. de 2024 · Then, we provide a novel hierarchical beam training method using two multi-mainlobe codewords in each layer of the hierarchical codebook for beam … glycine combat 7 automatic watchWeb9 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; bollaram which districtWeb12 de mar. de 2024 · In this paper, multiuser beam training based on hierarchical codebook for millimeter wave massive multi-input multi-output is investigated, where the base station (BS) simultaneously performs beam training with multiple user equipments (UEs). For the UEs, an alternative minimization method with a closed-form expression … bollard 10 tonnes