Results 51 to 60 of about 27,923 (259)

Coordinated Beamforming for Multi-Cell Non-Orthogonal Multiple Access-Based Spatial Modulation

open access: yesIEEE Access, 2020
This paper proposes coordinated beamforming (CB) that works over non-orthogonal multiple access (NOMA) scheme integrated with spatial modulation (SM), termed as CB NOMA-SM, to improve capacity and user fairness. User capacity, ergodic sum capacity (ESC),
Denny Kusuma Hendraningrat   +2 more
doaj   +1 more source

DRL-Assisted Resource Allocation for NOMA-MEC Offloading with Hybrid SIC

open access: yesEntropy, 2021
Multi-access edge computing (MEC) and non-orthogonal multiple access (NOMA) are regarded as promising technologies to improve the computation capability and offloading efficiency of mobile devices in the sixth-generation (6G) mobile system.
Haodong Li, Fang Fang, Zhiguo Ding
doaj   +1 more source

A Novel Downlink IM-NOMA Scheme

open access: yesIEEE Open Journal of the Communications Society, 2021
In the next generations of communication systems, resources' scarcity devolves to a more critical point as a consequence of the expected massive number of users to be served. Furthermore, the users' contradicting requirements on quality of service forces
Abdullateef Almohamad   +3 more
doaj   +1 more source

OTFS-NOMA: An Efficient Approach for Exploiting Heterogenous User Mobility Profiles [PDF]

open access: yes, 2019
This paper considers a challenging communication scenario, in which users have heterogenous mobility profiles, e.g., some users are moving at high speeds and some users are static.
Ding, Zhiguo   +3 more
core   +2 more sources

Outage Probability analysis of Power Domain MISO-NOMA in Rayleigh Fading Channel

open access: yesSir Syed University Research Journal of Engineering and Technology, 2022
The multiple access technique of the current wireless communication system depends on the orthogonal multiple access (OMA) technique. The availability of orthogonal resources is limited in OMA and cannot support the increasing demand for a large number ...
Muhammad Ahsan Shaikh   +4 more
doaj  

Energy-Efficient NOMA Enabled Heterogeneous Cloud Radio Access Networks [PDF]

open access: yes, 2018
Heterogeneous cloud radio access networks (H-CRANs) are envisioned to be promising in the fifth generation (5G) wireless networks. H-CRANs enable users to enjoy diverse services with high energy efficiency, high spectral efficiency, and low-cost ...
Hu, Rose Qingyang   +4 more
core   +2 more sources

The Application of MIMO to Non-Orthogonal Multiple Access

open access: yes, 2015
This paper considers the application of multiple-input multiple-output (MIMO) techniques to non-orthogonal multiple access (NOMA) systems. A new design of precoding and detection matrices for MIMO-NOMA is proposed and its performance is analyzed for the ...
Adachi, Fumiyuki   +2 more
core   +1 more source

The Optimization of UAV-Assisted Downlink Transmission Based on RSMA

open access: yesMathematics
Unmanned Aerial Vehicles (UAVs) provide exceptional flexibility, making them ideal for mitigating communication disruptions in disaster-affected or high-demand areas.
Lin Huang   +3 more
doaj   +1 more source

Signal Processing for MIMO-NOMA: Present and Future Challenges

open access: yes, 2018
Non-orthogonal multiple access (NOMA), as the newest member of the multiple access family, is envisioned to be an essential component of 5G mobile networks. The combination of NOMA and multi-antenna multi-input multi-output (MIMO) technologies exhibits a
Huang, Yongming   +5 more
core   +1 more source

A Novel Opportunistic NOMA in Downlink Coordinated Multi-Point Networks [PDF]

open access: yes, 2016
The non-orthogonal multiple access (NOMA) is regarded as a promising multiple access technique for 5G networks. In this research, we consider the joint transmission (JT) NOMA for a Coordinated Multi-Point (CoMP) system, and propose anovel opportunistic ...
Beach, Mark A   +3 more
core   +2 more sources

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