Results 31 to 40 of about 1,022 (162)
Low‐complexity sphere decoding for MIMO‐SCMA systems
IET Communications, Volume 15, Issue 4, Page 537-545, March 2021., 2021 Abstract Multiple‐input multiple‐output‐sparse code multiple access, a non‐trivial integration of sparse code multiple access and multiple‐input multiple‐output techniques, is able to achieve high spectrum efficiency and massive user connections. However, this integration also increases the complexity of signal detection.
Zhipeng Pan +4 more
wiley +1 more source
NEW COMPUTER GENERATED-SCMA CODEBOOK WITH MAXIMIZED EUCLIDIAN DISTANCE FOR 5G
Iraqi Journal of Information & Communication Technology, 2019 Sparse code multiple access (SCMA) is one of the Non-Orthogonal Multiple Access (NOMA) that attracts many researchers for its promising future uses in 5G systems. In this paper, a Computer Generated-Sparse Code Multiple Access (CG-SCMA) is proposed.
Yasmine M. Tabra, Bayan M. Sabbar
doaj +1 more source
College Physical Education Teaching Aided by Virtual Reality Technology
Mobile Information Systems, Volume 2021, Issue 1, 2021., 2021 In recent years, College PE has received more and more attention. Traditional PE and teaching cannot meet the demand of students in today’s society and cannot attract students’ interest in sports. Under the current situation that the country actively promotes information science education, there is an urgent need to innovate PE teaching methods. VRT is
Junniao Meng, Sang-Bing Tsai
wiley +1 more source
Optimal Power Allocation for Cooperative Pattern Division Multiple Access Systems
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 This study focuses on the power allocation (PA) problem in code division multiple access (PDMA) networks with amplify‐and‐forward (AF) relays. We provide two wireless communication technical performance indexes, which are system throughput and outage probability.
Xiurong Zhang +3 more
wiley +1 more source
A Multistage Method for SCMA Codebook Design Based on MDS Codes [PDF]
, 2019 Sparse Code Multiple Access (SCMA) has been recently proposed for the future generation of wireless communication standards. SCMA system design involves specifying several parameters.
da Silva, Bruno Fontana +3 more
core +5 more sources
Downlink Multiple Input Multiple Output Mixed Sparse Code Multiple Access for 5G System
IEEE Access, 2018 For downlink multiple-input multiple-output-sparse code multiple access (MIMO-SCMA) system, the convergence reliability of the detected codeword in each decision process is unsatisfactory at the message passing algorithm receiver. To address this problem,
Cheng Yan, Ningbo Zhang, Guixia Kang
doaj +1 more source
NOMA and OMA‐Based Massive MIMO and Clustering Algorithms for Beyond 5G IoT Networks
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 The Internet of Things (IoT) has brought about various global changes, as all devices will be connected. This article examines the latest 5G solutions for enabling a massive cellular network. It further explored the gaps in previously published articles, demonstrating that to deal with the new challenges.
Taj Rahman +6 more
wiley +1 more source
Improved MAX-Log MPA multiuser detection algorithm in SCMA system
Dianzi Jishu Yingyong, 2018 Sparse code multiple access(SCMA) is a novel non-orthogonal multiple access scheme to face the future 5G communication. In allusion to the problem that sparse code multiple access(SCMA) system based on a logarithm-domain MAX-Log message passing algorithm(
Wu Xiong +3 more
doaj +1 more source
Experimental demonstration of SCMA for visible light communications [PDF]
, 2018 We propose an experimental demonstration of sparse code multiple access (SCMA) based visible light communications (VLC) system, in which the multi-dimensional codewords selected from a predefined codebook set are used to encode the transmitted data and a
Ghassemlooy, Zabih +4 more
core +1 more source
Low-complexity hybrid interference cancellation for sparse code multiple access
EURASIP Journal on Wireless Communications and Networking, 2022 Sparse Code Multiple Access (SCMA) is one of Non Orthogonal Multiple Access (NOMA) candidates for 5G, the fifth generation mobile network. Multiple overlapped blocks of SCMA code are transmitted per frequency layer which compels the receiver to cancel ...
Bilal Ghani +4 more
doaj +1 more source