Results 1 to 10 of about 31,116 (159)
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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Security-Aware Codebook Design for Low-PAPR AFDM Systems [PDF]
SensorsAffine frequency division multiplexing (AFDM) is regarded as a promising waveform for high-mobility wireless systems. However, the public codebook used in AFDM raises security concerns when the link is observed by an eavesdropper, and meanwhile AFDM ...
Tingting Zhang, Haibo Dai
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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
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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An Efficient Codebook Design for Uplink SCMA
IEEE Access, 2020 Sparse code multiple access (SCMA) is one of the most intensively investigated non-orthogonal multiple access (NOMA) techniques for the fifth generation communication (5G) system. In this paper, a new multi-stage optimization approach for codebook design
Mengyao Gao +3 more
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On the Initialization of Swarm Intelligence Algorithms for Vector Quantization Codebook Design [PDF]
SensorsVector Quantization (VQ) is a technique with a wide range of applications. For example, it can be used for image compression. The codebook design for VQ has great significance in the quality of the quantized signals and can benefit from the use of swarm ...
Verusca Severo +4 more
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Beam Codebook Design for 5G mmWave Terminals [PDF]
IEEE Access, 2019 A beam codebook of 5G millimeter wave (mmWave) for data communication consists of multiple high-peak-gain beams to compensate the high pathloss at the mmWave bands.
Jianhua Mo +8 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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Design of Power-Imbalanced SCMA Codebook [PDF]
IEEE Transactions on Vehicular Technology, 2022 Sparse code multiple access (SCMA) is a promising multiuser communication technique for the enabling of future massive machine-type networks. Unlike existing codebook design schemes assuming uniform power allocation, we present a novel class of SCMA codebooks which display power imbalance among different users for downlink transmission.
Xudong Li 0005 +5 more
openaire +4 more sources