Discrete rate maximisation power allocation with enhanced BER [PDF]
, 2012 This study aims to maximise the rate over a multiple-in multiple-out (MIMO) link using incremental power and bit allocation. Two different schemes, greedy power allocation (GPA) and greedy bit allocation (GBA), are addressed and compared with the ...
Alhanafy, Waleed Eid Abdelrahman +1 more
core +1 more source
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
doaj +1 more source
Power Allocation in Multi-User Cellular Networks: Deep Reinforcement Learning Approaches [PDF]
IEEE Transactions on Wireless Communications, 2019 The model-based power allocation has been investigated for decades, but this approach requires mathematical models to be analytically tractable and it has high computational complexity.
Fan-Xu Meng +3 more
semanticscholar +1 more source
Green Communication via Power-optimized HARQ Protocols [PDF]
, 2013 Recently, efficient use of energy has become an essential research topic for green communication. This paper studies the effect of optimal power controllers on the performance of delay-sensitive communication setups utilizing hybrid automatic repeat ...
Amat, Alexandre Graell i +2 more
core +2 more sources
Spectrum-Energy Efficiency Tradeoff in Decode-and-Forward Two-Way Multi-Relay Networks
IEEE Access, 2021 Owing to its high spectrum efficiency (SE), two-way relaying has aroused tremendous research interests. In this paper, the spectrum-energy efficiency (SE-EE) trade-off in decode-and-forward (DF) two-way multi-relay networks is studied by considering non ...
Mengjie Chu, Runhe Qiu, Xue-Qin Jiang
doaj +1 more source
Millimeter-Wave NOMA With User Grouping, Power Allocation and Hybrid Beamforming [PDF]
IEEE Transactions on Wireless Communications, 2019 This paper investigates the application of non-orthogonal multiple access in millimeter-Wave communications (mmWave-NOMA). Particularly, we consider downlink transmission with a hybrid beamforming structure.
Lipeng Zhu +5 more
semanticscholar +1 more source
On Resource Allocation in Fading Multiple Access Channels - An Efficient Approximate Projection Approach [PDF]
, 2008 We consider the problem of rate and power allocation in a multiple-access channel. Our objective is to obtain rate and power allocation policies that maximize a general concave utility function of average transmission rates on the information theoretic ...
Eryilmaz, Atilla +3 more
core +3 more sources
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
doaj +1 more source
Energy-Efficient Power Allocation in Non-Linear Energy Harvesting Multiple Relay Systems
Algorithms, 2021 In this paper, to maximize the energy efficiency (EE) in the two-hop multi-relay cooperative decoding and forwarding (DF) system for simultaneous wireless information and power transmission (SWIPT), an optimal power allocation algorithm is proposed, in ...
Huifang Pan, Qi Zhu
doaj +1 more source
Power Allocation in Cell-Free Massive MIMO: A Deep Learning Method
IEEE Access, 2020 Massive multiple-input multiple-output (MIMO) is a key technology in 5G. It enables multiple users to be served in the same time-frequency block through precoding or beamforming techniques, thus increasing capacity, reliability and energy efficiency.
Yu Zhao, I. Niemegeers, S. de Groot
semanticscholar +1 more source