A Tutorial on Decoding Techniques of Sparse Code Multiple Access [PDF]
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
doaj +9 more sources
Sparse Code Multiple Access: Potentials and Challenges [PDF]
IEEE Open Journal of the Communications Society, 2021 The massive connectivity is among other unprecedented requirements which are expected to be satisfied in order to follow the perpetual increase of connected devices in the era of Internet of Things.
Manel Rebhi +3 more
doaj +5 more sources
Sub-Graph Based Joint Sparse Graph for Sparse Code Multiple Access Systems [PDF]
IEEE Access, 2018 Sparse code multiple access (SCMA) is a promising air interface candidate technique for next-generation mobile networks, especially for massive machine-type communications. In this paper, we design a low-density parity-check (LDPC) coded SCMA detector by
Ke Lai +5 more
doaj +5 more sources
A Novel Image-Classification-Based Decoding Strategy for Downlink Sparse Code Multiple Access Systems [PDF]
Entropy, 2023 The introduction of sparse code multiple access (SCMA) is driven by the high expectations for future cellular systems. In traditional SCMA receivers, the message passing algorithm (MPA) is commonly employed for received-signal decoding. However, the high
Zikang Chen +4 more
doaj +3 more sources
A New Multiple Access Technique for 5G: Power Domain Sparse Code Multiple Access (PSMA)
IEEE Access, 2018 In this paper, a new approach for multiple access in the fifth generation (5G) of cellular networks called power domain sparse code multiple access (PSMA) is proposed. In PSMA, we adopt both the power domain and the code domain to transmit multiple users'
Mohammad Moltafet +4 more
doaj +5 more sources
Sparse code multiple access on the generalized frequency division multiplexing [PDF]
EURASIP Journal on Wireless Communications and Networking, 2020 Recent advances in the communication systems culminated in a new class of multiple access schemes, named non-orthogonal multiple access (NOMA), where the main goal is to increase the spectrum efficiency by overlapping data from different users in a ...
Guilherme P. Aquino, Luciano L. Mendes
doaj +2 more sources
Low-complexity hybrid interference cancellation for sparse code multiple access
EURASIP Journal on Wireless Communications and Networking, 2022 Sparse Code Multiple Access (SCMA) is one of Non Orthogonal Multiple Access (NOMA) candidates for 5G, the fifth generation mobile network. Multiple overlapped blocks of SCMA code are transmitted per frequency layer which compels the receiver to cancel ...
Bilal Ghani +4 more
doaj +2 more sources
Downlink Multiple Input Multiple Output Mixed Sparse Code Multiple Access for 5G System
IEEE Access, 2018 For downlink multiple-input multiple-output-sparse code multiple access (MIMO-SCMA) system, the convergence reliability of the detected codeword in each decision process is unsatisfactory at the message passing algorithm receiver. To address this problem,
Cheng Yan, Ningbo Zhang, Guixia Kang
doaj +3 more sources
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
doaj +1 more source
Sparse Kronecker-Product Coding for Unsourced Multiple Access [PDF]
IEEE Wireless Communications Letters, 2021 Submitted to IEEE Wireless Communications ...
Zeyu Han +4 more
openaire +2 more sources