Results 1 to 10 of about 207,384 (248)

Performance Analysis of IRS-Aided NOMA Communications in the Presence of Imperfect SIC [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2021
The intelligent reflecting surface (IRS) is expected to be a promising technique to achieve a robust spectrum and energy efficiency. This paper investigates the advantages of IRS in enhancing performance of non-orthogonal multiple access (NOMA ...
Van Phu Tuan, Ic-Pyo Hong
doaj   +1 more source

Faster-Than-Nyquist Asynchronous NOMA Outperforms Synchronous NOMA [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2022
Faster-than-Nyquist (FTN) signaling aided non-orthogonal multiple access (NOMA) is conceived and its achievable rate is quantified in the presence of random link delays of the different users. We reveal that exploiting the link delays may potentially lead to a signal-to-interference-plus-noise ratio (SINR) gain, while transmitting the data symbols at ...
Shuangyang Li   +6 more
openaire   +4 more sources

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

Exploiting Full-duplex and Fixed Power Allocation Approaches for Dual-hop Transmission in Downlink NOMA

open access: yesAdvances in Electrical and Electronic Engineering, 2021
In a wireless system, dual-hop transmission requires Full-Duplex (FD) to transmit signals from the base station too far users. It is more beneficial if we deploy non-orthogonal multiple access to serve specific users, i.e.
Tu-Trinh Thi Nguyen, Dinh-Thuan Do
doaj   +1 more source

Outage Performance of Full-Duplex Unmanned Aerial Vehicle-aided Cooperative Non-orthogonal Multiple Access

open access: yesAdvances in Electrical and Electronic Engineering, 2023
Unmanned Aerial Vehicles (UAVs) are envisioned to play a key role in the Sixth-Generation (6G) and Beyond Fifth-Generation (B5G) networks. Resolving spectrum constraints in UAV communications remains a critical issue.
Thanh Luan Nguyen   +3 more
doaj   +1 more source

Power allocation‐Assisted secrecy analysis for NOMA enabled cooperative network under multiple eavesdroppers

open access: yesETRI Journal, 2021
In this work, the secrecy of a typical wireless cooperative dual‐hop non‐orthogonal multiple access (NOMA)‐enabled decode‐and‐forward (DF) relay network is investigated with the impact of collaborative and non‐collaborative eavesdropping.
V. Narasimha Nayak, Kiran Kumar Gurrala
doaj   +1 more source

Inter Numerology Interference Reduction Using Windowing Technique For OFDM Based Multi-Numerologies

open access: yesJournal of Applied Science and Engineering, 2022
Cyclic Prefix – Orthogonal Frequency Division Multiplexing is undoubtedly the fundamental waveform for the upcoming wireless standards. Mixed / multi-numerology scheme is one of the promising key features for 5G wireless standard, but it suffers from a ...
P. Kumar, K.R. Usha Rani
doaj   +1 more source

Non-Orthogonal Multiple Access for Hybrid VLC-RF Networks with Imperfect Channel State Information [PDF]

open access: yes, 2020
The present contribution proposes a general framework for the energy efficiency analysis of a hybrid visible light communication (VLC) and Radio Frequency (RF) wireless system, in which both VLC and RF subsystems utilize nonorthogonal multiple access ...
Al-Qutayri, Mahmoud   +4 more
core   +2 more sources

Restoration of an Upper Lip Affected by Necrotizing Ulcerative Stomatitis Using Bilateral Cheek Advancement with a Crescentic Perialar Excision [PDF]

open access: yesArchives of Aesthetic Plastic Surgery, 2018
Necrotizing ulcerative stomatitis (NUS) refers to ulceration of the oral mucosa that precedes rapid orofacial soft- and hard-tissue destruction. NUS on the upper lip is considered a reconstructive challenge because of the functional importance and ...
Yu Gil Park, Sang Hun Kim, Eun Soo Park
doaj   +1 more source

Home - About - Disclaimer - Privacy