Results 51 to 60 of about 1,022 (162)
Power-Imbalanced Low-Density Signatures (LDS) From Eisenstein Numbers [PDF]
, 2019 As a special case of sparse code multiple access (SCMA), low-density signatures based code-division multiple access (LDS-CDMA) was widely believed to have worse error rate performance compared to SCMA.
Liu, Zilong, Mheich, Zeina, Xiao, Pei
core +2 more sources
Scheme Design of SR‐DCSK‐WPC System With Energy Buffer in RIS‐Assisted Design
IET Communications, Volume 19, Issue 1, January/December 2025.This research examines the performance improvement of chaotic communication assisted by reconfigurable intelligent surface. Currently, our paper explores the time switching scheme of SWIPT system and the time allocation characteristics of short reference technology, and reconstructs the implementation scheme of the time allocation coefficient.
Gongquan Zhang +3 more
wiley +1 more source
Low Complexity Multi-User MIMO Detection for Uplink SCMA System Using Expectation Propagation Algorithm [PDF]
, 2018 Sparse code multiple access (SCMA), which combines the advantages of low density signature (LDS) and code-division multiple access (CDMA), is regarded as one of the promising modulation technique candidate for the next generation of wireless systems ...
Kosasih, Alva +2 more
core +3 more sources
Two stage beamforming and combining scheme for FDD massive MIMO systems with multi‐antenna users
IET Communications, Volume 18, Issue 18, Page 1166-1178, November 2024.This paper proposes a two‐stage beamforming and combining scheme in frequency division duplex massive multiple‐input multiple‐output systems with multi‐antenna users. The problem of the pre‐beamforming matrix and pre‐combining matrix design are formulated as an 0–1 quadratic integer programming problem, and further transform it into an 0–1 mixed linear
Wu Zheng +3 more
wiley +1 more source
A novel receiver for uplink SCMA system
Dianxin kexue, 2017 Sparse code multiple access (SCMA) is a type of code domain non-orthogonal multiple access technology,which is regarded as a promising multiple access technology for 5G due to its excellent performance.The uplink SCMA system generally uses a message ...
Hongyang ZHANG +3 more
doaj +2 more sources
The Journal of Engineering, 2019 New non-orthogonal multiple access technology is proposed with the development of 5G, which is expected to support higher spectrum efficiency and massive terminal access, it enables the communication system to achieve better bit error rate performance ...
Qing Wang +3 more
doaj +1 more source
Machine learning assisted adaptive LDPC coded system design and analysis
IET Communications, Volume 18, Issue 1, Page 1-10, January 2024.A learning‐aided adaptive modulation and coding system for short block length scenarios are proposed. This is applicable to Internet of Things and URLLC cases. Abstract This paper proposes a novel machine learning (ML) assisted low‐latency low density parity check (LDPC) coded adaptive modulation (AM) system, where short block‐length LDPC codes are ...
Cong Xie +2 more
wiley +1 more source
IEEE Access, 2017 Sparse code multiple access (SCMA), as a promising non-orthogonal multiple access scheme for the 5G system, aims to achieve massive connections and grant-free transmission in the radio access scenario.
Guangjin Chen +3 more
doaj +1 more source
Turbo-like Iterative Multi-user Receiver Design for 5G Non-orthogonal Multiple Access
, 2018 Non-orthogonal multiple access (NoMA) as an efficient way of radio resource sharing has been identified as a promising technology in 5G to help improving system capacity, user connectivity, and service latency in 5G communications.
Chen, Yan +3 more
core +1 more source
V2X Meets NOMA: Non-Orthogonal Multiple Access for 5G Enabled Vehicular Networks
, 2017 Benefited from the widely deployed infrastructure, the LTE network has recently been considered as a promising candidate to support the vehicle-to-everything (V2X) services.
Di, Boya +3 more
core +1 more source