Results 51 to 60 of about 91,357 (154)

Precoder Design in Statistical CSI Aided Non-Orthogonal Multiple Access

IEEE Access, 2018
In this paper, the ergodic sum rate maximization problem is considered in the multiple-input single-output non-orthogonal multiple access (NOMA) system with statistical channel state information at the transmitter.
Yanjing Sun, Jiasi Zhou, Qi Cao, Song Li
doaj   +1 more source

Uplink power allocation based on non-orthogonal multiple access system

上海师范大学学报. 自然科学版, 2020
In view of the non-orthogonal multiple access(NOMA) system uplink,an optimal power allocation scheme based on the Dinkelbach algorithm was proposed in order to solve the energy efficiency optimization problem under the premise of ensuring the minimum ...
LIANG Yan, LI Li, PENG Zhangjie, FU Fengting   +3 more
doaj   +1 more source

Joint time and power allocation for uplink cooperative non-orthogonal multiple access based massive machine-type communication Network

International Journal of Distributed Sensor Networks, 2018
Non-orthogonal multiple access is an essential promising solution to support large-scale connectivity required by massive machine-type communication scenario defined in the fifth generation (5G) mobile communication system.
Shujun Han, Xiaodong Xu, Litong Zhao, Xiaofeng Tao   +3 more
doaj   +1 more source

Performance improvement of non-orthogonal multiple access scheme using code division multiplexing

International Journal of Distributed Sensor Networks, 2017
Currently, the standardization of fifth-generation mobile communication system (5G), which realizes 10 Gbps transmission, is in progress. In mobile communications, it is generally difficult to perform high-capacity transmission because of channel fading.
Hiroki Kitagawa, Eiji Okamoto
doaj   +1 more source

Cooperative Non-Orthogonal Multiple Access With Physical Layer Network Coding

IEEE Access, 2019
Physical layer network coding (PNC) has been proposed for information exchange between a pair of users assisted by a relay. However, the spectral efficiency of PNC reduces when the number of user pairs increases due to the requirement of orthogonal ...
Chun Yeen Ho, Chee Yen Leow
doaj   +1 more source

Non-Terrestrial Networks Based on Non-Orthogonal Multiple Access Towards 6G

Diyala Journal of Engineering Sciences
Until now many regions around the world are still uncovered by cellular terrestrial mobile system services due to the lack of economic feasibility as well as the difficulty of introducing such services.
Abdulsattar M. Ahmed, Sayf A. Majeed, Salim Abdullah Hasan   +2 more
doaj   +1 more source

Adaptive Cooperative Non-Orthogonal Multiple Access-Based Power Line Communication

IEEE Access, 2019
This paper proposes an adaptive cooperative non-orthogonal multiple access (NOMA) scheme for power line communication (PLC) networks, in which the source superimposes the data symbols to two users.
Honghong Pu, Xiaosheng Liu, Shu Zhang, Dianguo Xu   +3 more
doaj   +1 more source

The Optimization of UAV-Assisted Downlink Transmission Based on RSMA

Mathematics
Unmanned Aerial Vehicles (UAVs) provide exceptional flexibility, making them ideal for mitigating communication disruptions in disaster-affected or high-demand areas.
Lin Huang, Daiming Qu, Jianguo Zhou, Jialin Zhang   +3 more
doaj   +1 more source

Non-Orthogonal Multiple Access for Unmanned Aerial Vehicle Assisted Communication

IEEE Access, 2018
The future wireless networks promise to provide ubiquitous connectivity to a multitude of devices with diversified traffic patterns wherever and whenever needed.
Muhammad Farhan Sohail, Chee Yen Leow, Seunghwan Won   +2 more
doaj   +1 more source

Joint Power and Channel Allocation for Non-Orthogonal Multiple Access in 5G Networks and Beyond. [PDF]

Sensors (Basel), 2023
Alghazali Q, Al-Amaireh H, Cinkler T.
europepmc   +1 more source