SCMA High-Dimensional Codebook Design Based on VBR-GAM
天地一体化信息网络, 2023 At the physical layer, sparse code multiple access (SCMA) technology is used to solve the problem of massive user access.In the current research on SCMA, in addition to the research on SCMA multi-user detection technology, more attention will be paid to ...
Xu DENG, Ke CHU, Lidong ZHU
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A One-pass Resource-Allocating Codebook for Patch-based Visual Object Recognition [PDF]
, 2010 Frequencies of occurrence of low-level image features is the representation of choice in the design of state-of-the-art visual object recognition systems.
Niranjan, Mahesan +3 more
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A Review of Codebook Models in Patch-Based Visual Object Recognition [PDF]
, 2011 The codebook model-based approach, while ignoring any structural aspect in vision, nonetheless provides state-of-the-art performances on current datasets.
Niranjan, Mahesan +3 more
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DFT-based Beamforming Weight-Vector Codebook Design for Spatially Correlated Channels in the Unitary Precoding Aided Multiuser Downlink [PDF]
, 2010 —The DFT-based beamforming weight-vector code-book is considered as an effective design for spatially correlated channels. In this paper, we demonstrate that when the antenna elements are uniformly spaced as well as linearly arranged, and the channels ...
Yang, Lie-Liang +5 more
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Convolutional neural network and clustering-based codebook design method for massive MIMO systems
EURASIP Journal on Advances in Signal Processing, 2022 In this paper, we propose a convolutional neural network (CNN) and clustering-based codebook design method. Specifically, we train two different CNNs, i.e., CNN1 and CNN2, to compress the channel state information (CSI) matrices into the channel vectors ...
Jing Xing, Die Hu
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Fast Codebook Generation Using Pattern Based Masking Algorithm for Image Compression
IEEE Access, 2021 Vector Quantization (VQ) is a classical block coding technique used for image compression which achieves high compression using simple encoding and decoding process.
Muhammad Bilal +2 more
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Precoder distribution and adaptive codebook in wideband precoding [PDF]
, 2012 Based on wideband precoding (WBP) in the multiple-input multiple-output orthogonal frequency division multiplexing system, an adaptive nonuniform codebook is presented in this paper.
Xiang, Wei +5 more
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Variable dimension VQ encoding and codebook design [PDF]
IEEE Transactions on Communications, 1997 A variable dimension vector quantizer (VDVQ) has codewords of unequal dimensions. Here, a trellis-based sequential optimal VDVQ encoding algorithm is proposed. Also, a VDVQ codebook design algorithm based on splitting a node with equal or reduced dimensions is proposed that does not require any codebook parameter to be prespecified unlike known schemes.
Anamitra Makur, K. P. Subbalakshmi
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On the Design of Multiuser Codebooks for Uplink SCMA Systems [PDF]
IEEE Communications Letters, 2016 Sparse code multiple access (SCMA) is a promising uplink multiple access technique that can achieve superior spectral efficiency, provided that multidimensional codebooks are carefully designed. In this letter, we investigate the multiuser codebook design for SCMA systems over Rayleigh fading channels.
Jinchen Bao +4 more
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Deep Clustering-Based Codebook Design for Massive MIMO Systems
IEEE Access, 2019 Deep learning (DL) can effectively handle explosive data and solve the complicated non-convex problems. Recently, it is used to reduce the overhead of channel state information (CSI) feedback and improve the performance of the limited feedback massive ...
Jing Jiang +4 more
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