Grant-Free Uplink Transmission With Multi-Codebook-Based Sparse Code Multiple Access (MC-SCMA) [PDF]
IEEE Access, 2019 In sparse code multiple access (SCMA)-based grant-free (GF) access, both user's channel and the selected SCMA codebook (CB) are considered as a transmission signature for multi-user detection (MUD). In conventional SCMA-based grant-free (GF) access where
Ameha Tsegaye Abebe, Chung G. Kang
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Windowed Joint Detection and Decoding with IR-HARQ for Asynchronous SCMA Systems [PDF]
Entropy, 2023 To improve the decoding performance of asynchronous sparse code multiple access (SCMA) systems over additive white Gaussian noise (AWGN) channels, this paper proposes a novel windowed joint detection and decoding algorithm for a rate-compatible (RC ...
Mengsheng Guan, Min Zhu, Baoming Bai
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Investigating High Performance Implementations of Sparse Code Multiple Access (SCMA) Codebook Design
JISR on Computing, 2022 - The number of mobile devices, IoT devices, and their applications is increasing day by day in recent years and further going to increase in coming years.
Halar Mustafa
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Joint Iterative Decoding Design of Cooperative Downlink SCMA Systems [PDF]
EntropySparse code multiple access (SCMA) has been a competitive multiple access candidate for future communication networks due to its superiority in spectrum efficiency and providing massive connectivity.
Hao Cheng, Min Zhang, Ruoyu Su
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Improving Polar-Coded SCMA System by Information Coupling and Parity Check [PDF]
Sensors, 2020 In this paper, the uplink information-coupled polar-coded sparse code multiple access (PC-SCMA) system is proposed. For this system, we first design the encoding method of systematic joint parity check and CRC-aided (PCCA) polar code.
Xi Wu, Yafeng Wang
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Jointly Optimizing Resource Allocation, User Scheduling, and Grouping in SBMA Networks: A PSO Approach [PDF]
EntropyBlind Interference Alignment (BIA) and Sparse Code Multiple Access (SCMA) offer the potential for massive connectivity but face limitations. Our recently proposed Sparsecode-and-BIA-based Multiple Access (SBMA) scheme synergizes their strengths ...
Jianjian Wu +4 more
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SCMA CODEBOOK DESIGN BASED ON GRADIENT ASCENT ALGORITHM [PDF]
Proceedings on Engineering Sciences, 2022 Sparse Code Multiple Access (SCMA) is a non-orthogonal multiple access scheme, which improves spectrum efficiency. SCMA codebooks determine the bit error rate (BER) performance.
Islam Kanatbekuli +4 more
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A Tutorial on Decoding Techniques of Sparse Code Multiple Access
IEEE Access, 2022 Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonal multiple access (NOMA) scheme to enable future massive machine-type communication networks.
Saumya Chaturvedi +4 more
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CG-SCMA Codebook Design Based on Maximized Euclidian Distance
Journal of Telecommunications and Information Technology, 2023 Sparse code multiple access (SCMA) is a multi-dimensional codebook based on a class of non-orthogonal multiple access (NOMA) technologies enabling the delivery of non-orthogonal resource elements to numerous users in 5G wireless communications without ...
Sura S. Mohamed, Hikmat N. Abdullah
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SCMA Spectral and Energy Efficiency With QoS
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
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