Results 81 to 90 of about 475 (165)
Investigation on Evolving Single-Carrier NOMA Into Multi-Carrier NOMA in 5G
IEEE Access, 2018 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 fifth-generation wireless systems. In this paper, we first reveal that the
Jie Zeng +6 more
doaj +1 more source
Unequal Error Protection SCMA Codebooks [PDF]
, 2019 This paper investigates the design of unequal error protection (UEP) codebooks for sparse code multiple access (SCMA) systems. We propose a joint LDPC code and SCMA codebook design approach by incorporating cloud-partitioning of codewords in the ...
Wen, Lei +3 more
core +2 more sources
Dynamic interference for uplink SCMA in large-scale wireless networks without coordination
EURASIP Journal on Wireless Communications and Networking, 2018 Fast varying active transmitter sets are a key feature of wireless communication networks with very short length transmissions arising in communications for the Internet of Things.
Malcolm Egan +4 more
doaj +1 more source
Resource Allocation-Based PAPR Analysis in Uplink SCMA-OFDM Systems
IEEE Access, 2019 Sparse code multiple access (SCMA) is a non-orthogonal multiple access (NOMA) uplink solution that overloads resource elements (RE's) with more than one user.
Aditya S. Rajasekaran +4 more
doaj +1 more source
Deep Learning-Aided SCMA [PDF]
, 2018 Sparse code multiple access (SCMA) is a promising code-based non-orthogonal multiple-access technique that can provide improved spectral efficiency and massive connectivity meeting the requirements of 5G wireless communication systems.
Minhoe Kim +7 more
core +1 more source
Optimized Low Density Superposition Modulation for 5G Mobile Multimedia Wireless Networks
IEEE Access, 2019 The explosive growth of mobile multimedia services and applications are increasing the demand of access ability for the recent 5G networks. Non-orthogonal multiple access (NOMA) techniques have been recently proposed for 5G to improve access efficiency ...
Kun Lu, Chengxin Jiang
doaj +1 more source
ANALISIS PENGARUH CODEBOOK TERHADAP KINERJA SISTEM SPARSE CODE MULTIPLE ACCESS [PDF]
, 2019 Sparse Code Multiple Access (SCMA) adalah teknologi untuk memenuhi kebutuhan peningkatan jumlah pengguna dengan overloading factor yang besar. SCMA diharapkan dapat memenuhi kebutuhan kinerja yang heterogen pada jaringan telekomunikasi generasi kelima ...
INDAH TIKA LESTARI
core
Deep Neural Network Aided Designs of Uplink Bit-interleaved Coded Sparse Code Multiple Access Schemes [PDF]
, 2023 Bit-Interleaved Coded Modulation (BICM) spreads binary codewords across different time interval before the modulation process, which not only combat channel effects such as multipath and fading but also enhances the diversity gain of the entire system ...
Liu, En-Jui
core
An SCMA-Based Grant-Free Access Scheme [PDF]
This paper elaborates on the idea of building grant-free channel access schemes from non-orthogonal multiple access ones, and proposes an explicit such scheme based on sparse code multiple access (SCMA).
Paolini, Enrico +4 more
core +1 more source
工程科学与技术, 2019 As a candidate non-orthogonal multiple access technology for 5G, the sparse code multiple access (SCMA) can effectively improve spectrum efficiency.
Lei CHEN
doaj