Non Orthogonal Multiple Access for Millimeter Wave Communications Using Intelligent Reflecting Surfaces

2021 ◽  
Author(s):  
Raed Alhamad ◽  
Hatem Boujemaa
Keyword(s):  
Millimeter Wave ◽  
Multiple Access ◽  
Reflecting Surfaces ◽  
Millimeter Wave Communications

User Fairness Non-Orthogonal Multiple Access (NOMA) for Millimeter-Wave Communications With Analog Beamforming

2019 ◽  
Vol 18 (7) ◽  
pp. 3411-3423 ◽  
Author(s):  
Zhenyu Xiao ◽  
Lipeng Zhu ◽  
Zhen Gao ◽  
Dapeng Oliver Wu ◽  
Xiang-Gen Xia
Keyword(s):  
Millimeter Wave ◽  
Multiple Access ◽  
Millimeter Wave Communications

scholarly journals A Review on Coexistence Issues of Broadband Millimeter-Wave Communications

2021 ◽  
Author(s):  
Ching-Lun Tai ◽  
Derek Wu
Keyword(s):  
Millimeter Wave ◽  
Multiple Access ◽  
High Rate ◽  
Next Generation ◽  
Future Directions ◽  
Backward Compatibility ◽  
Microwave Communications ◽  
Coexistence Issues ◽  
Shed Light ◽  
Millimeter Wave Communications

<div>With higher frequencies and broader spectrum than conventional frequency bands, the millimeter-wave (mmWave) band is suitable for next-generation wireless networks featuring short-distance high-rate communications. As a newcomer, mmWaves are expected to have the backward compatibility with existing services and collaborate with other technologies in order to enhance system performances. Therefore, the coexistence issues become an essential topic for next-generation wireless communications. In this paper, we systematically review the coexistence issues of broadband mmWave communications and their corresponding solutions proposed in the literature, helping shed light on the insights of the mmWave design. Particularly, the works surveyed in this paper can be classified into four categories: coexistence with microwave communications, coexistence with fixed services, coexistence with non-orthogonal multiple access (NOMA), and other coexistence issues. Results of numerical evaluations inspired by the literature are presented for a deeper analysis. We also point out some challenges and future directions for each category as a roadmap to further investigate the coexistence issues of broadband mmWave communications.</div>

scholarly journals Millimeter Wave Communications with OMA and NOMA Schemes for Future Communication Systems

2020 ◽  
Vol 10 (1) ◽  
pp. 68-72
Keyword(s):  
Communication Networks ◽  
Millimeter Wave ◽  
Communication Systems ◽  
Multiple Access ◽  
Path Loss ◽  
Small Cells ◽  
Recent Past ◽  
Available Bandwidth ◽  
Communications Systems ◽  
Millimeter Wave Communications

Millimeter-wave (mmWave) communications had been considered widely in recent past due to its largely available bandwidth. This paper describes a detailed survey of mmWave communications with orthogonal multiple access (OMA), non-orthogonal multiple access (NOMA) schemes, physical design and security for future communication networks. mmWave provides super-speed connectivity, more reliability, and higher data rate and spectral efficiency. However, communications occurring at mmWave frequencies can easily get affected by interference and path loss. Various schemes such as small cells, heterogeneous network and hybrid beamforming are used to overcome interferences and highlight the prominence of mmWave in future communications systems.

scholarly journals Joint Power Allocation and Beamforming for Non-Orthogonal Multiple Access (NOMA) in 5G Millimeter Wave Communications

2018 ◽  
Vol 17 (5) ◽  
pp. 2961-2974 ◽  
Author(s):  
Zhenyu Xiao ◽  
Lipeng Zhu ◽  
Jinho Choi ◽  
Pengfei Xia ◽  
Xiang-Gen Xia
Keyword(s):  
Power Allocation ◽  
Millimeter Wave ◽  
Multiple Access ◽  
Joint Power ◽  
Millimeter Wave Communications

scholarly journals A Review on Coexistence Issues of Broadband Millimeter-Wave Communications

2021 ◽  
Author(s):  
Ching-Lun Tai ◽  
Derek Wu
Keyword(s):  
Millimeter Wave ◽  
Multiple Access ◽  
High Rate ◽  
Next Generation ◽  
Future Directions ◽  
Backward Compatibility ◽  
Microwave Communications ◽  
Coexistence Issues ◽  
Shed Light ◽  
Millimeter Wave Communications

<div>With higher frequencies and broader spectrum than conventional frequency bands, the millimeter-wave (mmWave) band is suitable for next-generation wireless networks featuring short-distance high-rate communications. As a newcomer, mmWaves are expected to have the backward compatibility with existing services and collaborate with other technologies in order to enhance system performances. Therefore, the coexistence issues become an essential topic for next-generation wireless communications. In this paper, we systematically review the coexistence issues of broadband mmWave communications and their corresponding solutions proposed in the literature, helping shed light on the insights of the mmWave design. Particularly, the works surveyed in this paper can be classified into four categories: coexistence with microwave communications, coexistence with fixed services, coexistence with non-orthogonal multiple access (NOMA), and other coexistence issues. Results of numerical evaluations inspired by the literature are presented for a deeper analysis. We also point out some challenges and future directions for each category as a roadmap to further investigate the coexistence issues of broadband mmWave communications.</div>

scholarly journals Joint Power Control and Beamforming for Uplink Non-Orthogonal Multiple Access in 5G Millimeter-Wave Communications

2018 ◽  
Vol 17 (9) ◽  
pp. 6177-6189 ◽  
Author(s):  
Lipeng Zhu ◽  
Jun Zhang ◽  
Zhenyu Xiao ◽  
Xianbin Cao ◽  
Dapeng Oliver Wu ◽  
...  
Keyword(s):  
Power Control ◽  
Millimeter Wave ◽  
Multiple Access ◽  
Joint Power ◽  
Joint Power Control ◽  
Millimeter Wave Communications
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