On the design of near-optimal sparse code multiple access codebooks

YM Chen, JW Chen - IEEE transactions on communications, 2020 - ieeexplore.ieee.org
Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple
access (NOMA) techniques for the next generation of communication systems. In this paper …

SCMA codebook design based on uniquely decomposable constellation groups

X Zhang, D Zhang, L Yang, G Han… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Sparse code multiple access (SCMA), which helps improve spectrum efficiency (SE) and
enhance connectivity, has been proposed as a non-orthogonal multiple access (NOMA) …

A novel deep neural network based approach for sparse code multiple access

J Lin, S Feng, Y Zhang, Z Yang, Y Zhang - Neurocomputing, 2020 - Elsevier
Sparse code multiple access (SCMA) has been one of the non-orthogonal multiple access
(NOMA) schemes aiming to support high spectral efficiency and ubiquitous access …

Reinforcement learning-based SCMA codebook design for uplink Rayleigh fading channels

YM Chen, CDS González, PH Wang… - IEEE Wireless …, 2021 - ieeexplore.ieee.org
Sparse Code Multiple Access (SCMA) is a promising technique for next generation mobile
communication systems. In this letter, the problems surrounding the design of an SCMA …

[PDF][PDF] A review of codebook design methods for sparse code multiple access

SA Hussain, N Ahmad, I Shayea, HM Kaidi… - Indonesian Journal of …, 2021 - academia.edu
The progressions in telecommunication beyond the 5th generation have created a need to
improve research drifts. The current 5G study has an important focus on non-orthogonal …

Joint constellation design and multiuser detection for grant-free NOMA

Z Ma, W Wu, M Jian, F Gao… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
As a promising solution for massive machine-type communication, grant-free non-
orthogonal multiple access (GF-NOMA) has received considerable attention in recent years …

SCMA-TPGAN: A new perspective on sparse codebook multiple access for UAV system

C Duan, S Zhang, P Yin, X Li, J Luo - Computer Communications, 2023 - Elsevier
As more and more devices are connected to wireless networks, channel resources are
getting tighter and tighter. UAVs, as a new type of mobile device, will play a larger role in the …

SCMA codebook design based on divided extended mother codebook

Z Hou, Z Xiang, P Ren, B Cao - IEEE Access, 2021 - ieeexplore.ieee.org
Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple
access (NOMA) techniques for the next generation communication systems. In this paper …

An optimum probabilistic shaping based uplink SCMA codebook design using hybrid firefly-bat algorithm

R Thirunavukkarasu, R Balasubramanian… - Wireless Personal …, 2023 - Springer
Abstract Sparse Code Multiple Access (SCMA) is a potential Non-Orthogonal Multiple
Access (NOMA) scheme that is widely employed in 5G wireless networks to address rigid …

[PDF][PDF] New computer generated-SCMA codebook with maximized Euclidian distance for 5G

YM Tabra, BM Sabbar - Iraqi Journal of Information and Communication …, 2019 - iasj.net
Sparse Code Multiple Access (SCMA) is one of the Non-Orthogonal Multiple Access
(NOMA) that attracts many researchers for its promising future uses in 5G systems. In this …