Results 1 to 10 of about 13,186 (120)

NOMA-Assisted Multiple Access Scheme for IoT Deployment: Relay Selection Model and Secrecy Performance Improvement [PDF]

open access: yesSensors, 2019
In this paper, an Internet-of-Things (IoT) system containing a relay selection is studied as employing an emerging multiple access scheme, namely non-orthogonal multiple access (NOMA).
Dinh-Thuan Do   +3 more
doaj   +3 more sources

Evaluasi Coded Random Access untuk Visible Light Communication pada Model Kanal Non-Line Of Sight

open access: yesJurnal Elkomika, 2022
ABSTRAK Penggunaan Non-Orthogonal Multiple Access (NOMA) pada sistem komunikasi dapat memberi kebebasan bagi user untuk mengirimkan informasi secara bersamaan tanpa harus memperebutkan timeslot ataupun frekuensi.
BRIAN PAMUKTI   +2 more
doaj   +1 more source

Analysis of factors affecting the operation of the communication system with nonorthogonal multiple access [PDF]

open access: yesITM Web of Conferences, 2019
NOMA is a group of non-orthogonal multiple access methods [1]. In this article, we talk about the Power Domain (Division) NOMA method. It is a non-orthogonal multiple access method with channel separation by power [2].
Rogozhnikov Eugeniy   +4 more
doaj   +1 more source

Outage Probability and Ergodic Capacity Analysis of MIMO-NOMA Heterogeneous Network for 5G System

open access: yesJISR on Computing, 2022
Based on the orthogonal multiple access (OMA) paradigm, multiple access techniques are now used in wireless networks. The capacity of OMA for orthogonal resources, which is already constrained, will be exceeded in the coming years by the demand for a ...
Sadiq ur Rehman
doaj   +1 more source

The Performance Evaluation of NOMA for 5G Systems Using Automatic Deployment of Multi Users [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
Non-Orthogonal Multiple Access (NOMA) in the fifth generation (5G) system is one of the optimistic technologies for wireless radio access networks. Compared to orthogonal multiple accesses (OMA) reduce the spectral efficiency; NOMA provides the best ...
Suprith P. G, Mohammed Riyaz Ahmed
doaj   +1 more source

Uplink power control scheme for spectral efficiency maximization in NOMA systems

open access: yesAlexandria Engineering Journal, 2023
Non-orthogonal multiple access (NOMA) has recently gained much research attention as a possible multiple access solution for fifth-generation (5G) wireless communication. The NOMA can further enhance spectral performance compared with orthogonal multiple
Bilal Ur Rehman   +7 more
doaj   +1 more source

A Survey on Non-Orthogonal Multiple Access: From the Perspective of Spectral Efficiency and Energy Efficiency

open access: yesEnergies, 2020
Non-orthogonal multiple access (NOMA) is a promising technology for next-generation wireless networks with emerging demands on low latency, high throughput, and massive connectivity.
Hieu V. Nguyen   +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

Multi-Carrier Waveforms and Multiple Access Strategies in Wireless Networks: Performance, Applications, and Challenges

open access: yesIEEE Access, 2022
Current generation mobile communications require high-quality services. Adopting multiple access (MA) and multi-carrier waveforms potentially enhances the quality of services offered to end-users.
Tewelgn Kebede   +4 more
doaj   +1 more source

Completion-Time-Driven Scheduling for Uplink NOMA-Enabled Wireless Networks [PDF]

open access: yes, 2020
Efficient scheduling policy is crucial in wireless networks due to delay-sensitivity of many emerging applications. In this work, we consider a joint user pairing and scheduling (UPaS) scheme for multi-carrier non-orthogonal multiple access (MC-NOMA ...
Derakhshani, Mahsa   +4 more
core   +1 more source

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