Hierarchical codebook
Web17 de mar. de 2024 · In this paper, we propose an improved BT scheme under hierarchical codebook. First, we define an index to measure the power difference of the received … WebIn this paper, we propose two basic criteria for the hierarchical codebook design, and devise an efficient hierarchical codebook by jointly exploiting sub-array and …
Hierarchical codebook
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Web20 de fev. de 2012 · A possible solution is a function, which returns a codebook with the centroids like kmeans in scipy.cluster.vq does. Only thing you need is the partition as vector with flat clusters part and the original observations X. def to_codebook(X, part): """ Calculates centroids according to flat cluster assignment Parameters ----- X : array, (n, d) … Web6 de nov. de 2015 · Performance evaluations are conducted under different system and channel models. Results show superiority of the proposed codebook over the existing …
WebTranslations in context of "liste de codage de quantification" in French-English from Reverso Context: Le flux de données est détecté par l'intermédiaire du mot de codage correspondant à la liste de codage de quantification du flux de données correspondant au mode de flux sélectionné en tant que matrice de précodage, et le flux de données détecté est modulé.
Web7 de out. de 2024 · Hierarchical Codebook-based Beam Training for Extremely Large-Scale Massive MIMO. Extremely large-scale multiple-input multiple-output (XL-MIMO) … Webto estimate different MPCs, we use dynamic hierarchical codebook which is updated according to the estimated MPCs. To summarize, our contribution mainly includes: 1) A general-ized hierarchical codebook design method is firstly proposed. 2) Then based on this method, we propose a beam training method which dynamically updates the …
Webcient hierarchical codebook by jointly exploiting sub-array and deactivation (turning-off) antenna processing techniques, where closed-form expressions are provided to generate …
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 codebook to estimate different multi-path components (MPCs), dynamic hierarchical codebooks which are updated according to the estimated MPCs are … iphone zero day vulnerabilityWeb22 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 … iphone zero day malwareWebIn this paper, we propose two basic criteria for the hierarchical codebook design, and devise an efficient hierarchical codebook by jointly exploiting sub-array and deactivation (turning-off) antenna processing techniques, where closed-form expressions are provided to generate the codebook. iphone zlibraryWeb12 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 … orange upholstered chairWebIn this article, multiuser beam training based on hierarchical codebook for millimeter wave massive multi-input multi-output is investigated, where the base station (BS) … orange upholstered swivel chairWeb12 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 … iphone zmusic-online.comWeb21 de set. de 2024 · Beam training is an effective way to acquire channel state information (CSI) for the XL-RIS assisted system. 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. orange urchin