Results 1 to 10 of about 12,216,998 (317)
SCMA Codebook Design Based on Divided Extended Mother Codebook [PDF]
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple access (NOMA) techniques for the next generation communication systems.
Zhaoyang Hou +3 more
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Accelerating Families of Fuzzy K-Means Algorithms for Vector Quantization Codebook Design [PDF]
Sensors, 2016 The performance of signal processing systems based on vector quantization depends on codebook design. In the image compression scenario, the quality of the reconstructed images depends on the codebooks used.
Edson Mata +4 more
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Codebook Design for PD-SCMA NOMA Systems
IEEE Access, 2023 The hybrid power domain sparse code non-orthogonal multiple access (PD-SCMA) scheme multiplexes multiple users on a single resource element (RE) both in power and code domains, thus achieving a superior spectral efficiency.
Simon Chege, Tom Walingo, Foued Derraz
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Hierarchical Codebook Design for Massive MIMO [PDF]
EAI Endorsed Transactions on Scalable Information Systems, 2015 The Research of Massive MIMO is an emerging area, since the more antennas the transmitters or receivers equipped with, the higher spectral efficiency and link reliability the system can provide. Due to the limited feedback channel, precoding and codebook
Xin Su +3 more
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Design Low Complexity SCMA Codebook Using Arnold’s Cat Map
Journal of Telecommunications and Information Technology, 2022 In 5G wireless communications, sparse code multiple access (SCMA) – a multi-dimensional codebook based on a specific category of the non-orthogonal multiple access (NOMA) technique - enables many users to share non-orthogonal resource components with a ...
Sura S. Mohamed, Hikmat N. Abdullah
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Hierarchical Codebook Design and Analytical Beamforming Solution for IRS Assisted Communication [PDF]
IEEE Transactions on Wireless Communications, 2023 In intelligent reflecting surface (IRS) assisted communication, beam search is usually time-consuming as the multiple-input multiple-output (MIMO) of IRS is usually very large.
Xiyuan Liu +4 more
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Hierarchical ML Codebook Design for Extreme MIMO Beam Management [PDF]
IEEE Transactions on Machine Learning in Communications and Networking, 2023 Beam management is a strategy to unify beamforming and channel state information (CSI) acquisition with large antenna arrays in 5G. Codebooks serve multiple uses in beam management including beamforming reference signals, CSI reporting, and analog beam ...
Ryan M. Dreifuerst, Robert W. Heath
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Pre-scaling and Codebook Design for Joint Radar and Communication Based on Index Modulation [PDF]
Global Communications Conference, 2021 This paper develops an efficient index modulation (IM) approach for the joint radar-communication (JRC) system based on a multi-carrier multiple-input multiple-output (MIMO) radar.
Shengyang Chen +2 more
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A Dimension Distance-Based SCMA Codebook Design
IEEE Access, 2017 For sparse code multiple access (SCMA) with traditional codebooks, the initial information of message passing algorithm (MPA) receiver is easily susceptible to noise and multipath fading, and the convergence reliability of the first detected user in each
Cheng Yan, Guixia Kang, Ningbo Zhang
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Interleaving based SCMA Codebook Design Using Arnold’s Cat Chaotic Map
Iraqi Journal of Information & Communication Technology, 2023 Non-orthogonal multiple access (NOMA) technology is a significant topic of the present 5G investigation. A possible NOMA approach is Sparse Code Multiple Access (SCMA), increasing next-generation communication's ability to handle multiple users. In SCMA,
Sura S. Mohamed, Hikmat N. Abdullah
doaj +3 more sources