A tutorial on decoding techniques of sparse code multiple access

S Chaturvedi, Z Liu, VA Bohara, A Srivastava… - IEEE …, 2022 - ieeexplore.ieee.org
Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonal multiple
access (NOMA) scheme to enable future massive machine-type communication networks …

Sparse code multiple access: Potentials and challenges

M Rebhi, K Hassan, K Raoof… - IEEE Open Journal of the …, 2021 - ieeexplore.ieee.org
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 …

OTFS-SCMA: A downlink NOMA scheme for massive connectivity in high mobility channels

H Wen, W Yuan, Z Liu, S Li - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
This paper studies a downlink system that combines orthogonal-time-frequency-space
(OTFS) modulation and sparse code multiple access (SCMA) to support massive …

6G: Technology evolution in future wireless networks

M Shafi, RK Jha, S Jain - IEEE Access, 2024 - ieeexplore.ieee.org
The Sixth Generation (6G) Wireless Communication Network (WCN) is the successive
provision to ameliorate the gain with ultra-low latency, and e xtremely high energy efficiency …

Investigation on evolving single-carrier NOMA into multi-carrier NOMA in 5G

J Zeng, T Lv, RP Liu, X Su, M Peng, C Wang… - IEEE Access, 2018 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is one promising technology, which provides high
system capacity, low latency, and massive connectivity, to address several challenges in the …

Gaussian approximate message passing detection of orthogonal time frequency space modulation

L **ang, Y Liu, LL Yang, L Hanzo - IEEE transactions on …, 2021 - ieeexplore.ieee.org
Message passing (MP) aided detectors are designed for orthogonal time frequency space
(OTFS) modulated system. We first characterize the transmit-receive relationship of our …

Iterative joint channel estimation, user activity tracking, and data detection for FTN-NOMA systems supporting random access

W Yuan, N Wu, Q Guo, DWK Ng… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Given the requirements of increased data rate and massive connectivity in the Internet-of-
things (IoT) applications of the fifth-generation communication systems (5G), non-orthogonal …

Iterative receiver design for FTN signaling aided sparse code multiple access

W Yuan, N Wu, A Zhang, X Huang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The sparse code multiple access (SCMA) is a promising candidate for bandwidth-efficient
next generation wireless communications, since it can support more users than the number …

OTFS signaling for SCMA with coordinated multi-point vehicle communications

Y Ge, Q Deng, D González, YL Guan… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper investigates an uplink coordinated multi-point (CoMP) coverage scenario, in
which multiple mobile users are grouped for sparse code multiple access (SCMA), and …

AFDM-SCMA: A promising waveform for massive connectivity over high mobility channels

Q Luo, P **ao, Z Liu, Z Wan, N Thomos… - IEEE transactions on …, 2024 - ieeexplore.ieee.org
This paper studies the affine frequency division multiplexing (AFDM)-empowered sparse
code multiple access (SCMA) system, referred to as AFDM-SCMA, for supporting massive …