Results 11 to 20 of about 71,373 (268)

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

Outage Analysis of Unmanned-Aerial-Vehicle-Assisted Simultaneous Wireless Information and Power Transfer System for Industrial Emergency Applications

open access: yesSensors, 2023
In the scenario of a natural or human-induced disaster, traditional communication infrastructure is often disrupted or even completely unavailable, making the employment of emergency wireless networks highly important.
Aleksandra Cvetković   +4 more
doaj   +1 more source

Analysis of cooperative non-orthogonal multiple access networks with energy harvesting [PDF]

open access: yesITM Web of Conferences, 2022
In this paper, we investigate the performance of cooperative non-orthogonal access (NOMA) network with energy harvesting, where, source node and relay node serving as energy-constrained nodes harvest energy from the power beacon PBS.
Huang Haiyan   +3 more
doaj   +1 more source

Outage Performance Analysis of RSMA-Aided Semi-Grant-Free Transmission Systems

open access: yesIEEE Open Journal of the Communications Society, 2023
In this paper, we analyze the outage performance of a rate-splitting multiple access (RSMA)-aided semi-grant-free (SGF) transmission system, in which a grant-based user (GBU) and multiple grant-free users (GFUs) access the base station by sharing the ...
Fengcheng Xiao   +4 more
doaj   +1 more source

Power Allocation Algorithm Minimizing Outage Probability in Cognitive Radio Relay Network [PDF]

open access: yesJisuanji gongcheng, 2017
To improve the outage performance of cognitive radio relay network,this paper proposes a power allocation algorithm minimizing outage probability by analyzing the system outage probability and user power allocation conditions.It presents the mathematical
ZHU Chunhua,ZHOU Yuping,CHEN Baoxing,ZHU Quan
doaj   +1 more source

On the Performance of Full-Duplex Cooperative NOMA With Non-Linear EH

open access: yesIEEE Access, 2021
This paper studies a non-linear energy harvesting (EH) enabled full-duplex (FD) cooperative non-orthogonal multiple access (C-NOMA) system, where the near user acts as an FD relay to assist the transmission from BS to far user with power-splitting (PS ...
Long Ma, Enyu Li, Qianqian Yang
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

Two-Stage Superposed Transmission for Cooperative NOMA Systems

open access: yesIEEE Access, 2018
In this paper, a two-stage superposed transmission scheme for cooperative nonorthogonal multiple access (NOMA) systems is proposed. During the first N time slots, the source simultaneously transmits the superposition coded symbols to the relay and ...
Wei Duan   +4 more
doaj   +1 more source

Outage Performance of the Full-Duplex Two-Way DF Relay System Under Imperfect CSI

open access: yesIEEE Access, 2017
Contrary to the most existing works about the full-duplex (FD) relaying with perfect channel state information (CSI), this paper studies the outage performance of the two-way FD decode-and-forward relay network under the joint effects of the residual ...
Cheng Li   +5 more
doaj   +1 more source

NOMA-Based User Cooperation With Incremental Hybrid Forwarding Protocols

open access: yesIEEE Open Journal of the Communications Society, 2021
In this paper, we investigate the performance of a non-orthogonal multiple access (NOMA) wireless system, in which signal transmission of a far user is assisted by a near user.
Suyue Li   +5 more
doaj   +1 more source

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