Results 31 to 40 of about 515,342 (335)

Cooperative Non-Orthogonal Multiple Access in 5G Systems [PDF]

open access: yesIEEE Communications Letters, 2014
Non-orthogonal multiple access (NOMA) has received considerable recent attention as a promising candidate for 5G systems. A key feature of NOMA is that users with better channel conditions have prior information about the messages of other users.
Member Ieee Zhiguo Ding   +2 more
semanticscholar   +1 more source

Non-Orthogonal Multiple Access: A Unified Perspective [PDF]

open access: yesIEEE Wireless Communications, 2018
Non-orthogonal multiple access (NOMA) is a promising technique for future mobile communication systems, which can approach multiuser channel capacity by sharing the same time-frequency resources with multiple users. In this article, we provide a unified framework for NOMA and review the principles of various NOMA schemes in different domains with the ...
Qi Wang 0002   +3 more
openaire   +2 more sources

Application of Non-Orthogonal Multiple Access in LTE and 5G Networks [PDF]

open access: yesIEEE Communications Magazine, 2015
As the latest member of the multiple access family, non-orthogonal multiple access (NOMA) has been recently proposed for 3GPP LTE and is envisioned to be an essential component of 5G mobile networks.
Z. Ding   +6 more
semanticscholar   +1 more source

Trellis-Coded Non-Orthogonal Multiple Access [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
In this letter, we propose a trellis-coded nonorthogonal multiple access (NOMA) scheme. The signals for different users are produced by trellis coded modulation (TCM) and then superimposed on different power levels. By interpreting the encoding process via the tensor product of trellises, we introduce a joint detection method based on the Viterbi ...
Xun Zou, Mehdi Ganji, Hamid Jafarkhani
openaire   +5 more sources

Investigating High Performance Implementations of Sparse Code Multiple Access (SCMA) Codebook Design

open access: yesJISR on Computing, 2022
- The number of mobile devices, IoT devices, and their applications is increasing day by day in recent years and further going to increase in coming years.
Halar Mustafa
doaj   +1 more source

Non-orthogonal multiple access for FSO backhauling [PDF]

open access: yes2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018
This paper has been submitted to IEEE WCNC ...
Marzieh Najafi   +4 more
openaire   +2 more sources

High Reliable Uplink Transmission Methods in GEO–LEO Heterogeneous Satellite Network

open access: yesApplied Sciences, 2023
As a significant component of non-terrestrial networks, satellite communication has gradually evolved into a heterogeneous topology where the network nodes are classified as low Earth orbit (LEO) and geostationary Earth orbit (GEO) nodes. Considering the
Guoyan Li   +4 more
doaj   +1 more source

A State-of-the-Art Survey on Reconfigurable Intelligent Surface-Assisted Non-Orthogonal Multiple Access Networks

open access: yesProceedings of the IEEE, 2022
Reconfigurable intelligent surfaces (RISs) and nonorthogonal multiple access (NOMA) have been recognized as key enabling techniques for the envisioned sixth generation (6G) of mobile communication networks.
Zhiguo Ding   +7 more
semanticscholar   +1 more source

Analysis of an LSTM-based NOMA Detector Over Time Selective Nakagami-m Fading Channel Conditions

open access: yesJournal of Telecommunications and Information Technology, 2022
This work examines the efficacy of deep learning (DL) based non-orthogonal multiple access (NOMA) receivers in vehicular communications (VC). Analytical formulations for the outage probability (OP), symbol error rate (SER), and ergodic sum rate for the ...
Ravi Shankar   +5 more
doaj   +1 more source

On the Comparison of Optimal NOMA and OMA in a Paradigm Shift of Emerging Technologies

open access: yesIEEE Access, 2022
Non-orthogonal multiple access (NOMA) is a better multiple access technique than orthogonal multiple access (OMA), precisely orthogonal frequency division multiple access (OFDMA) scheme, at the conceptual level for fifth-generation (5G) networks and ...
Joydev Ghosh   +5 more
doaj   +1 more source

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