OTFS-SCMA: A code-domain NOMA approach for orthogonal time frequency space modulation

K Deka, A Thomas, S Sharma - IEEE transactions on …, 2021 - ieeexplore.ieee.org
… , we propose an OTFS-NOMA scheme based on a code-domain NOMA technique. The
code-domain NOMA approach considered here is SCMA. Although OTFS-NOMA schemes have …

OTFS-NOMA based on SCMA

K Deka, A Thomas, S Sharma - arXiv preprint arXiv:2005.03216, 2020 - arxiv.org
… Contributions: In this paper, we propose an OTFS-NOMA scheme based on a code-domain
NOMA technique. The codedomain NOMA considered here is SCMA. Although OTFSNOMA

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
OTFS-NOMA is attractive as the codebook/sequence assignment is independent of the
specific locations of users. An OTFS-SCMA … with the superimposed SCMA codebook, which …

Convolutional sparse coding based channel estimation for OTFS-SCMA in uplink

A Thomas, K Deka, P Raviteja… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
… This paper proposes a channel estimation method for OTFSSCMA based on convolutional
sparse coding (CSC). This method is found to provide impressive bit-error-rate (BER) …

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
… In OTFS-NOMA, multiple mobile users are allowed to share the same delay-Doppler resources
simultaneously, and distinguished by either different power levels [25] or with the help of …

Deep Learning-Based Downlink OTFS-SCMA

Q Li, G Liu, Y Zhao, C Liu, F Xu - IEEE Wireless …, 2024 - ieeexplore.ieee.org
… )-based scheme is proposed for downlink OTFS-SCMA system. The proposed scheme
includes an autoencoder (AE)-based SCMA … -based equalization and detection for OTFS-NOMA,” …

Jamming suppression via resource hopping in high-mobility OTFS-SCMA systems

Q Deng, Y Ge, Z Ding - IEEE Wireless Communications Letters, 2023 - ieeexplore.ieee.org
… practical deployment of OTFS and OTFS-NOMA. An improved OTFS-based NOMA (OBNOMA) …
Additionally, code-domain NOMA, such as sparse code multiple access (SCMA), was also …

OTFS signaling for uplink NOMA of heterogeneous mobility users

Y Ge, Q Deng, PC Ching, Z Ding - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
… In addition, the performance analysis of OTFS-NOMA … assumptions in practical OTFS-NOMA
system deployment. To … a more general coded uplink OTFS-NOMA scenario in this work. …

Performance of OTFS-NOMA scheme for coordinated direct and relay transmission networks in high-mobility scenarios

Y Xu, Z Du, W Yuan, S Jia… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
… Ding et al., “OTFS-NOMA: An efficient approach for exploiting heterogenous user mobility …
Li, “OTFS-SCMA: A downlink NOMA scheme for massive connectivity in high mobility channels,…

Low-complexity memory AMP detector for high-mobility MIMO-OTFS SCMA systems

Y Ge, L Liu, S Huang, D González… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
… In OTFS-NOMA, multiple users are allowed to access the … [7] or via sparse code multiple
access (SCMA) [8]. However, a … AMP detector for MIMO-OTFS SCMA systems, where the typical …