Search Results - "sparse code multiple access"

Channel Estimation and Pilot Design for Uplink Sparse Code Multiple Access System Based on Complex-Valued Sparse Autoencoder

Authors: Quan Yuan Dezhi Li Zhenyong Wang et al.

Source: IEEE Access, Vol 13, Pp 123559-123569 (2025)

Subject Terms: Sparse code multiple access, Internet of Things, channel estimation, 0211 other engineering and technologies, 0202 electrical engineering, electronic engineering, information engineering, massive connection, sparse pilot structure, Electrical engineering. Electronics. Nuclear engineering, 02 engineering and technology, complex-valued sparse autoencoder, TK1-9971

Access URL: https://ieeexplore.ieee.org/ielx7/6287639/6514899/08667100.pdf
https://doaj.org/article/fbe5140ccf6b4575b898c315f16c8e7b
https://ieeexplore.ieee.org/document/8667100/

Design of Enhanced Protograph Codes and Codebooks for IDD-SCMA Systems

Authors: Jiaqin Chen Huan Ma Liang Lv et al.

Source: IEEE Access, Vol 13, Pp 51429-51439 (2025)

Subject Terms: Gray-labeling, protograph extrinsic information transfer (PEXIT), protograph low-density parity-check (PLDPC), Electrical engineering. Electronics. Nuclear engineering, sparse code multiple access (SCMA), iterative detection and decoding (IDD), TK1-9971

Access URL: https://doaj.org/article/2516e3f2411343d59c88f42cd9331909

Federated Learning Driven Sparse Code Multiple Access in V2X Communications

Authors: Zhen Chen Xiu Yin Zhang Daniel K. C. So et al.

Source: Chen, Z, Zhang, X Y, So, D K C, Wong, K-K, Chae, C-B & Wang, J 2024, 'Federated Learning Driven Sparse Code Multiple Access in V2X Communications', IEEE Network. https://doi.org/10.1109/MNET.2024.3375935

Subject Terms: reconfigurable intelligent surfaces, 0203 mechanical engineering, Federated learning, 0202 electrical engineering, electronic engineering, information engineering, vehicular communication, 02 engineering and technology, sparse code multiple access (SCMA)

File Description: application/pdf

Access URL: https://discovery-pp.ucl.ac.uk/id/eprint/10190184/

An SCMA-Based Grant-Free Access Scheme

Authors: Mirri, Alessandro Forlivesi, Diego Valentini, Lorenzo et al.

Source: 2024 IEEE Wireless Communications and Networking Conference (WCNC). :1-6

Subject Terms: Sparse code multiple access, massive machine-type communications, Internet of Things, wireless communications, multiple access

Research on multi-user access mechanism based on end-point information hopping and spreading hybrid technology

Authors: ZHANG Zuoming LI Fangxiao LUO Shenghan et al.

Source: Dianxin kexue, Vol 41, Pp 107-120 (2025)

Subject Terms: network security, end-point information hopping and spreading hybrid technology, active network defense, sparse code multiple access, Telecommunication, TK5101-6720, Technology

File Description: electronic resource

Relation: http://www.telecomsci.com/thesisDetails#10.11959/j.issn.1000-0801.2025104; https://doaj.org/toc/1000-0801

Access URL: https://doaj.org/article/ea83777afc494070bb09cedf6360aa74

A low-complexity SCMA multi-user detection algorithm based on state position information for satellite IoT

Authors: ZHEN Li WANG Jiahao HE Hua et al.

Source: 物联网学报, Vol 9, Pp 71-81 (2025)

Subject Terms: satellite Internet of things, sparse code multiple access, multi-user detection, message passing algorithm, state position information, Information technology, T58.5-58.64, Management information systems, T58.6-58.62

File Description: electronic resource

Relation: https://doaj.org/toc/2096-3750

Access URL: https://doaj.org/article/b9000eceadfa48d1a532933662d3894d

Pengaruh Pembobotan Desain Codebook terhadap Kinerja Sistem Sparse Code Multiple Access

Authors: Shilvy Fatma Fitria Rachmawati Fatma Linda Meylani Vinsensius Sigit Widhi Prabowo

Source: Jurnal Nasional Teknik Elektro dan Teknologi Informasi, Vol 13, Iss 2, Pp 124-130 (2024)

Subject Terms: pembobotan desain codebook, rotasi fase, ber, sparse code multiple access, konstelasi dasar, TA1-2040, Engineering (General). Civil engineering (General)

Access URL: https://doaj.org/article/8f5e3c8a30064b4e8ec446e1f23717df

A Lightweight Stepwise SCMA Codebook Design Scheme for AWGN Channels

Authors: Min Hua Shuo Meng Yue Juan et al.

Source: Forests ; Volume 16 ; Issue 2 ; Pages: 257

Subject Terms: forest management and monitoring, sparse code multiple access (SCMA), codebook design, detection performance, a lightweight stepwise scheme

Subject Geographic: agris

File Description: application/pdf

Relation: Forest Inventory, Modeling and Remote Sensing; https://dx.doi.org/10.3390/f16020257

Availability: https://doi.org/10.3390/f16020257

OTFS-SCMA: A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels

Authors: Haifeng, Wen Weijie, Yuan Zilong, Liu et al.

Source: IEEE Transactions on Wireless Communications. 22:5770-5784

Subject Terms: Signal Processing (eess.SP), FOS: Computer and information sciences, Distributed cooperation, Computer Science - Information Theory, Information Theory (cs.IT), 02 engineering and technology, Multiple access, State evolution, 0203 mechanical engineering, Non-orthogonal multiple access (NOMA), Orthogonal time frequency space (OTFS), FOS: Electrical engineering, electronic engineering, information engineering, 0202 electrical engineering, electronic engineering, information engineering, Sparse code multiple access (SCMA), Electrical Engineering and Systems Science - Signal Processing

File Description: text

Access URL: http://arxiv.org/abs/2301.00933

Performance of SCMA Systems in Fast-Fading Channels

Authors: Tufekci, T. Ulgen, O. Erkucuk, S. et al.

Source: 2022 30th Signal Processing and Communications Applications Conference (SIU). :1-4

Subject Terms: Sparse code multiple access, Non-Orthogonal Multiple Access, NOMA, Fading channels, Sparse codes, 02 engineering and technology, Non-orthogonal, Multiple access, Sparse Code Multiple Access, 5G mobile communication systems, 0203 mechanical engineering, SCMA, Non-orthogonal multiple access, 0202 electrical engineering, electronic engineering, information engineering, 5G, 5g

File Description: application/pdf

Access URL: https://hdl.handle.net/20.500.12469/4961

Resource allocation for uplink code-domain non-orthogonal multiple access

Authors: Jimenez Licea, Yanely Alsusa, Emad So, Ka Chun

Contributors: Jimenez Licea, Yanely Alsusa, Emad So, Ka Chun

Subject Terms: Pattern Division Multiple Access, Subcarrrier allocation NOMA, Sparse Code Multiple Access, Power allocation NOMA, Uplink NOMA, Resource allocation, Uplink Code-Domain NOMA

Access URL: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.843539

Jointly Optimizing Resource Allocation, User Scheduling, and Grouping in SBMA Networks: A PSO Approach

Authors: Jianjian Wu Chanzi Liu Xindi Wang et al.

Source: Entropy, Vol 27, Iss 7, p 691 (2025)

Subject Terms: multiple access, sparse-code multiple access (SCMA), blind interference alignment (BIA), Science, Astrophysics, QB460-466, Physics, QC1-999

File Description: electronic resource

Relation: https://www.mdpi.com/1099-4300/27/7/691; https://doaj.org/toc/1099-4300

Access URL: https://doaj.org/article/35860cc0c83842db8ba1f04f7023dc4b

Irregular SCMA System for Enhanced Quality of Service

Authors: Rebhi, Manel Hassan, Kais Raoof, Kosai et al.

Contributors: Rebhi, Manel Hassan, Kais Raoof, Kosai et al.

Source: 2022 International Telecommunications Conference (ITC-Egypt). :1-4

Subject Terms: wireless communication systems, SCMA system architectures, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], irregular SCMA structure, sparse code multiple access, enhanced quality, code-domain, multi-access systems, 02 engineering and technology, sparsity degree assignment, [INFO] Computer Science [cs], realistic massive communication scenario, optimized irregular SCMA, nonorthogonal multiple access, Quality of service, 0203 mechanical engineering, 0202 electrical engineering, electronic engineering, information engineering, regular SCMA, codebook sparsity degree, different channel states, bad channel conditions, high accuracy codebook design algorithms, upcoming generations

Grant-Free Sparse Code Multiple Access for Uplink Massive Machine-Type Communications and Its Real-Time Receiver Design

Authors: Ti-Yu Chen Zhi-Jing Lin Tzi-Dar Chiueh

Source: IEEE Open Journal of Circuits and Systems, Vol 4, Pp 218-227 (2023)

Subject Terms: user activity detection (UAD), massive machine type communications (mMTC), inner receiver, real-time, Electric apparatus and materials. Electric circuits. Electric networks, TK452-454.4, sparse code multiple access (SCMA), 5G

Access URL: https://doaj.org/article/482769a96fc641d3853b099101a14c14

Resource Allocation in the RIS Assisted SCMA Cellular Network Coexisting With D2D Communications

Authors: Yukai Liu Wen Chen Hongying Tang et al.

Source: IEEE Access, Vol 11, Pp 39978-39989 (2023)

Subject Terms: 9. Industry and infrastructure, Reconfigurable intelligent surface (RIS), resource allocation, Electrical engineering. Electronics. Nuclear engineering, non-orthogonal multiple access (NOMA), sparse code multiple access (SCMA), device-to-device (D2D), TK1-9971

Access URL: https://doaj.org/article/94898844ae2a4a2c91dd0ef2efbbc5fd

Performance Analysis and Phase Shift Design of IRS-Aided Uplink OTFS-SCMA

Authors: Jiarui Li Yi Hong

Source: IEEE Access, Vol 11, Pp 133059-133069 (2023)

Subject Terms: phase shifts design, word error probability, Intelligent reflecting surface (IRS), Electrical engineering. Electronics. Nuclear engineering, orthogonal time frequency space (OTFS), sparse code multiple access (SCMA), TK1-9971

Access URL: https://doaj.org/article/71967c2a76e34b75bb7edf978695eb36

Design Low Complexity SCMA Codebook Using Arnold’s Cat Map

Authors: Sura S. Mohamed Hikmat N. Abdullah

Source: Journal of Telecommunications and Information Technology, Iss 4 (2022)

Subject Terms: 0203 mechanical engineering, sparse code multiple access, dimension rotation, codebook design, Telecommunication, 0202 electrical engineering, electronic engineering, information engineering, TK5101-6720, Information technology, 02 engineering and technology, Euclidean distance, T58.5-58.64, chaotic interleaving

Access URL: https://doaj.org/article/b1a14b622e6a4f9d82c80bfc04ecb1bd

High-Security Physical Layer Encryption Scheme for SCMA-FBMC in Four-Mode Fiber

Authors: Shuaidong Chen Bo Liu Jianxin Ren et al.

Source: IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-8 (2022)

Subject Terms: four-mode fiber, sparse code multiple access, 0202 electrical engineering, electronic engineering, information engineering, Applied optics. Photonics, Physical layer security, QC350-467, 02 engineering and technology, filter bank multicarrier, Optics. Light, TA1501-1820

Access URL: https://doaj.org/article/1f715374918d487db00cde4d47dc511a

SCMA CODEBOOK DESIGN BASED ON GRADIENT ASCENT ALGORITHM

Authors: Islam Kanatbekuli Dmitriy Pokamestov Yakov Kryukov et al.

Source: Proceedings on Engineering Sciences, Vol 4, Iss 3, Pp 281-290 (2022)

Subject Terms: 03 medical and health sciences, 0302 clinical medicine, sparse code multiple access, codebook, scma, TA1-2040, Engineering (General). Civil engineering (General)

Access URL: https://doaj.org/article/ff886087d2fd482ea37b9b4d36084d77

Dynamic and Sparsity Adaptive Compressed Sensing Based Active User Detection and Channel Estimation of Uplink Grant-Free SCMA

Authors: Durak, Mehmet Hakan Ertug, Ozgur

Source: Radioengineering, Vol 30, Iss 3, Pp 576-583 (2021)

Subject Terms: channel estimation, ul grant-free transmission, 02 engineering and technology, beyond 5G, beyond 5g, sparse code multiple access (scma), TK1-9971, activity detection, 0203 mechanical engineering, 0202 electrical engineering, electronic engineering, information engineering, Sparse code multiple access (SCMA), Electrical engineering. Electronics. Nuclear engineering, UL grant-free transmission, active user detection, 5G, 5g, compressed sensing

File Description: text; application/pdf

Access URL: https://doaj.org/article/f5131b1934a744e7b7cd925ef0f99f57
https://www.radioeng.cz/fulltexts/2021/21_03_0576_0583.pdf
https://avesis.gazi.edu.tr/publication/details/aa688009-d3c3-4c60-8ee4-7e91a96ab71a/oai
http://hdl.handle.net/11012/201830