Results 11 to 20 of about 40,318 (262)
IEEE Access, 2020 In this paper, we propose user grouping, subcarrier allocation, and bit allocation schemes in multicarrier nonorthogonal multiple access (NOMA) systems on downlink beamforming to reduce the total transmit power while considering the data-rate and the ...
Jui-Hung Tseng +2 more
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IEEE Access, 2021 Non-orthogonal multiple access (NOMA) aided cell-free massive multiple-input multiple-output (CF mMIMO) systems have gained great attention over the past few years to be employed in the sixth generation of the wireless network.
Reza Sayyari +2 more
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IEEE Access, 2016 Blind interference alignment (BIA) can greatly improve the degree of freedom with the infinite signal-to-noise ratio (SNR) assumption. Under the finite SNR condition, noise accumulation can have a significantly negative impact on SNR, inducing severe ...
Qing Yang +4 more
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Guided exploration of user groups [PDF]
Proceedings of the VLDB Endowment, 2020 Finding a set of users of interest serves several applications in behavioral analytics. Often times, identifying users requires to explore the data and gradually choose potential targets. This is a special case of Exploratory Data Analysis (EDA), an iterative and tedious process.
Mariia Seleznova +3 more
openaire +2 more sources
User grouping and power allocation algorithm for UAV-aided NOMA network
Tongxin xuebao, 2020 To improve the transmission flexibility of emergency communication scenarios,a joint user grouping and power allocation algorithm was proposed for UAV-aided non-orthogonal multiple access (NOMA) system.A sum-rate maximization resource allocation ...
Guoquan LI +4 more
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Dynamic Beam Hopping Algorithm for LEO Satellite Systems Based on User Grouping
天地一体化信息网络, 2023 In a satellite communication system deployed with massive MIMO, when the number of users far exceeds the number of beams of the satellite, it is still difficult to satisfy the delay requirements of the satellite communication system even if the number of
Qing SHU +5 more
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A Light Signaling Approach to Node Grouping for Massive MIMO IoT Networks
Computers, 2022 Massive MIMO is one of the leading technologies for connecting very large numbers of energy-constrained nodes, as it offers both extensive spatial multiplexing and large array gain.
Emma Fitzgerald +5 more
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IEEE Access, 2022 Non-Orthogonal Multiple Access (NOMA) is one of the promising technologies for wireless communication networks. Although NOMA was originally proposed in cellular networks, due to its strengths, it can also be used in other networks, such as wireless ...
Nasrin Gholami +3 more
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Space Division Multiple Access With Distributed User Grouping for Multi-User MIMO-VLC Systems
IEEE Open Journal of the Communications Society, 2020 To support multiple users in an indoor multiple-input multiple-output visible light communication (MIMO-VLC) system adopting spatial multiplexing, orthogonal frequency division multiple access (OFDMA) is usually adopted, where the overall modulation ...
Chen Chen +4 more
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Joint Beamforming and User Grouping for FDA-MIMO Assisted Integrated Sensing and Communication
IEEE Open Journal of the Communications SocietyIntegrated sensing and communication (ISAC) enables the joint realization of environmental sensing and multiuser communications using shared hardware and spectrum resources.
Ruihao Yuan +2 more
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