Results 11 to 20 of about 7,220 (258)
SCMA with Low Complexity Symmetric Codebook Design for Visible Light Communication [PDF]
, 2017 Sparse code multiple access (SCMA) is attracting significant research interests currently, which is considered as a promising multiple access technique for 5G systems.
Gao, Qian +3 more
core +2 more sources
Simplified Multiuser Detection for SCMA with Sum-Product Algorithm [PDF]
, 2015 Sparse code multiple access (SCMA) is a novel non-orthogonal multiple access technique, which fully exploits the shaping gain of multi-dimensional codewords.
Chen, Zhiyong +4 more
core +2 more sources
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
doaj +2 more sources
, 2020 Orthogonal Time Frequency Space (OTFS) is a $\text{2-D}$ modulation technique that has the potential to overcome the challenges faced by orthogonal frequency division multiplexing (OFDM) in high Doppler environments. The performance of OTFS in a multi-user scenario with orthogonal multiple access (OMA) techniques has been impressive.
Kuntal Deka, Anna Thomas, Sanjeev Sharma
openalex +3 more sources
Low-Complexity Memory AMP Detector for High-Mobility MIMO-OTFS SCMA Systems [PDF]
2023 IEEE International Conference on Communications Workshops (ICC Workshops), 2023 Efficient signal detectors are rather important yet challenging to achieve satisfactory performance for large-scale communication systems. This paper considers a non-orthogonal sparse code multiple access (SCMA) configuration for multiple-input multiple ...
Yao Ge +5 more
openalex +3 more sources
Message Passing Algorithm Receiver Design for RIS-Assisted Downlink MIMO-SCMA System
Applied SciencesSparse code multiple access (SCMA) and reconfigurable intelligent surfaces (RISs) are two promising techniques in the forthcoming 6G communication networks to provide massive connectivity and enhance the spectral efficiency.
Dun Feng +5 more
doaj +2 more sources
Design of Enhanced Protograph Codes and Codebooks for IDD-SCMA Systems
IEEE AccessThis paper investigates the design of protograph low-density parity-check (PLDPC) codes and Gray-labeling codebooks (CBs) for the sparse code multiple access systems with iterative detection and decoding receiver (IDD-SCMA).
Jiaqin Chen +3 more
doaj +2 more sources
Simulating Real-World Slips: Enhanced Kinematic and Neuromuscular Responses to Experimental Slips in the Early vs. Late Stance Phase in Young and Older Adults [PDF]
BioengineeringSlips are a leading cause of injury and hospitalization among at-risk individuals. Replicating real-world slips by experimental, mechanical perturbations is essential for characterizing reactive balance mechanisms activated during near-fall situations ...
Marina Geissmann +4 more
doaj +2 more sources
Design of Power-Imbalanced SCMA Codebook [PDF]
IEEE Transactions on Vehicular Technology, 2020 Sparse code multiple access (SCMA) is a promising multiuser communication technique for the enabling of future massive machine-type networks. Unlike existing codebook design schemes assuming uniform power allocation, we present a novel class of SCMA codebooks which display power imbalance among different users for downlink transmission.
Xudong Li +5 more
openalex +5 more sources
An SCMA Receiver for 6G NTN based on Multi-Task Learning [PDF]
2024 IEEE Globecom Workshops (GC Wkshps)Future 6G networks are envisioned to enhance the user experience in a multitude of different ways. The unification of existing terrestrial networks with non-terrestrial network (NTN) components will provide users with ubiquitous connectivity.
Bruno De Filippo +4 more
semanticscholar +3 more sources