Results 41 to 50 of about 1,654 (206)
Transceiver design and performance analysis for uplink SCMA based on CP-free OFDM
Dianxin kexue, 2021 A typical sparse code multiple access (SCMA) system utilizes orthogonal frequency division multiplexing (OFDM) technology with cyclic prefix (CP) to combat multipath fading in wireless channels.Therefore, its capacity is reduced by the CP-insertion.To ...
Li ZHOU, Xiqing LIU
doaj +2 more sources
An ultra-reliable low-latency non-binary polar coded SCMA scheme [PDF]
, 2022 The joint transmission scheme of polar codes and sparse code multiple access (SCMA) has been regarded as a promising technology for future wireless communication systems.
Jin, Libiao +5 more
core +1 more source
A Tutorial on Decoding Techniques of Sparse Code Multiple Access
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 +1 more source
Performance Investigations of Scma Systems
, 2023 Sürekli yükselen; veri hızı, düşük gecikme, spektral verimlilik ve veri hacmi ihtiyaçlarını karşılayabilmek adına yeni haberleşme yöntemleri geliştirilmektedir.
Tüfekçi, Tolga Kağan +1 more
core
Channel estimation and performance analysis for uplink SCMA system
Dianxin kexue, 2017 There are two types of physical mapping for SCMA named RE-Sparse SCMA and RB-Sparse SCMA.A frequency division multiplexing (FDM) based pilot pattern was proposed for RE-Sparse SCMA,and existing code division multiplexing pilot patterns based on cyclic ...
Xian’an HU, Xiangnian ZENG
doaj +2 more sources
PhotonicsThe capacity performance of visible light communication (VLC) systems can be improved by using sparse code multiple access (SCMA). Since SCMA is a codebook-based multiple access scheme, the design of the codebook is crucial.
Jingxuan Dong +3 more
doaj +1 more source
SCMA Codebook Design Based on Divided Extended Mother Codebook
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple access (NOMA) techniques for the next generation communication systems.
Zhaoyang Hou +3 more
doaj +1 more source
A Low Complexity Detection Algorithm for SCMA
CoRR, 2016 9 pages, 5 ...
Chenchen Zhang +2 more
openaire +2 more sources
Nursing in Critical Care, Volume 31, Issue 3, May 2026.ABSTRACT Background Despite the potential benefits of digital intensive care unit (ICU) diaries (e‐diaries), their implementation remains challenging due to barriers such as workload, digital literacy and staff resistance. Aim To explore the real‐world, tailored implementation of an e‐diary in adult ICUs. Study Design A multicentre, mixed methods study
Carola M. A. Schol +6 more
wiley +1 more source
Frequency-Hopping Based SCMA for Massive Connectivity in Multi-cell Networks
, 2021 —Sparse code multiple-access (SCMA) is an emerging technique to support massive connectivity in 5G networks and beyond. In SCMA transmissions, some resource-blocks may undergo certain contamination due to deep fading and/or jamming attacks, thus leading ...
Jun Zhong +9 more
core +2 more sources