Results 1 to 10 of about 16,015,285 (164)

On the Capacity Comparison Between MIMO-NOMA and MIMO-OMA

open access: yesIEEE Access, 2016
Non-orthogonal multiple access (NOMA) has been shown in the literature to have a better performance than OMA in terms of sum channel capacity; however, the capacity superiority of NOMA over OMA has been only proved for single antenna systems, and the ...
Yang Liu   +3 more
doaj   +3 more sources

Survey and Performance Evaluation of Multiple Access Schemes for Next-Generation Wireless Communication Systems

open access: yesIEEE Access, 2021
Mobile communication systems are always in continuous evolution due to the demands of the end-users using this technology. Therefore, before the possible launch of 5G, some technologies have opened the way to the new mobile communication system. The need
A. F. M. Shahen Shah   +4 more
doaj   +1 more source

Hybrid Multiple-Access: Mode Selection, User Pairing and Resource Allocation

open access: yesIEEE Access, 2023
This paper proposes hybridization of non-orthogonal multiple-access (NOMA) and orthogonal multiple access (OMA) schemes for next-generation cellular networks.
Aysha Ebrahim   +4 more
doaj   +1 more source

Joint Computation and Communication Resource Allocation With NOMA and OMA Offloading for Multi-Server Systems in F-RAN

open access: yesIEEE Access, 2022
Since mobile devices typically have limited computation resources, offloading computation tasks to fog access points (F-APs) is a promising approach to support delay-sensitive and computation-intensive applications. This paper considers joint computation
Salwa Mostafa, Chi Wan Sung, Yongna Guo
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

Modeling and Simulating NOMA Performance for Next Generations

open access: yesJournal of Engineering, 2023
Non-orthogonal Multiple Access (NOMA) is a multiple-access technique allowing multiusers to share the same communication resources, increasing spectral efficiency and throughput.
Dalwa Omer Karim   +2 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

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

Decoupling Cascaded Multilevel HetNet OMA and NOMA Schemes and Performance Comparison [PDF]

open access: yesJisuanji gongcheng, 2019
To address the imbalance problem of Uplink(UL) and Downlink(DL) in Heterogeneous Network(HetNet),we study a multilevel HetNet which combines Dual-Connectivity(DC),Decoupled UL and DL Association(DUDA),and propose a DUDA-DC Non-Orthogonal Multiple Access ...
FAN Qiaoling, JIA Xiangdong, CHEN Yuwan, XU Wenjuan
doaj   +1 more source

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