Results 21 to 30 of about 238,736 (161)
Simulated Annealing for Resource Allocation in Downlink NOMA Systems in 5G Networks
Applied Sciences, 2021 In this work, we investigate resource allocation and user pairing to improve the system’s Throughput for the downlink non-orthogonal multiple access (NOMA)-based 5G networks.
Osama Abuajwa +2 more
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Beam Allocation and Power Optimization for Energy-Efficiency in Multiuser mmWave Massive MIMO System
Sensors, 2021 This paper studies beam allocation and power optimization scheme to decrease the hardware cost and downlink power consumption of a multiuser millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) system.
Saidiwaerdi Maimaiti +3 more
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Sum Capacity for Single-Cell Multi-User Systems with M-Ary Inputs
Entropy, 2017 This paper investigates the sum capacity of a single-cell multi-user system under the constraint that the transmitted signal is adopted from M-ary two-dimensional constellation with equal probability for both uplink, i.e., multiple access channel (MAC ...
Pei Yang +3 more
doaj +1 more source
IET Communications, 2021 The secrecy rate of two‐way untrusted relay networks with imperfect channel state information based on SWIPT is investigated when multiple relays harvest energy from two sources.
Dayong Yang +3 more
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JOIV: International Journal on Informatics Visualization, 2022 Underwater Visible light communication (UVLC) is a network communication wirelessly where information is transmitted employing light through visible waves; in this case, the light source comes from a light-emitting diode (LED) as a transmitter underwater.
Luthfi Nur'Adli +2 more
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Power Allocation in 5G Wireless Communication [PDF]
IEEE Access, 2019 Granger Causality analysis originated in the field of econometrics is used as a time series analysis tool based on vector auto-regression, and its phased generalized transfer entropy (TE), which is based on conditional co-information in information theory, has been widely used in data analysis in recent years.
Zhangliang Chen, Qilian Liang
openaire +2 more sources
Journal of Applied Mathematics, 2014 In multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources.
Heng Wang +3 more
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Unsupervised Learning for C-RAN Power Control and Power Allocation [PDF]
IEEE Communications Letters, 2021 This letter applies a feedforward neural network trained in an unsupervised fashion to the problem of optimizing the transmit powers in centralized radio access networks operating on a cell-free basis. Both uplink and downlink are considered. Various objectives are entertained, some leading to convex formulations and some that do not. In all cases, the
Rasoul Nikbakht +2 more
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Computers, 2023 This paper focuses on downlink power allocation for a cognitive radio-based non-orthogonal multiple access (CR-NOMA) system in a femtocell environment involving device-to-device (D2D) communication. The proposed power allocation scheme employs the greedy
Nahla Nur Elmadina +6 more
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Low-Complexity Power Allocation in NOMA Systems With Imperfect SIC for Maximizing Weighted Sum-Rate
IEEE Access, 2019 In this paper, we investigate the power allocation for maximizing weighted sum rate (WSR) in downlink multiple carriers non-orthogonal multiple access (MC-NOMA) systems with imperfect successive interference cancellation (SIC).
Xiaoming Wang +3 more
doaj +1 more source