4.5 Article

Deep neural network design with SLNR and SINR criterions for downlink power allocation in multi-cell multi-user massive MIMO systems

期刊

ICT EXPRESS
卷 9, 期 2, 页码 228-234

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ELSEVIER
DOI: 10.1016/j.icte.2022.01.011

关键词

Deep neural networks; Massive MIMO; Power allocation; Signal-to-leak-plus-noise ratio (SLNR); Signal-to-interference-plus-noise ratio (SINR)

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In this paper, a deep learning approach is proposed to solve power allocation problems in massive MIMO networks. Signal-to-interference-plus-noise ratio (SINR) and signal-to-leak-plus-noise ratio (SLNR) criteria are used for linear precoder design, defining the max-min and max-prod power allocation challenges. A deep neural network (DNN) framework is developed, utilizing the user's equipment position to train the deep model and forecast the ideal power distribution based on the user's location. Compared to traditional optimization approaches, the DNN design provides an optimal solution to the power allocation problem within a short time via quick inference.
In this paper, we propose a deep learning approach for solving power allocation problems in massive MIMO networks. We use signal -to-interference-plus-noise-ratio (SINR) and signal-to-leak-plus-noise ratio (SLNR) criteria for linear precoder design to define the max-min and max-prod power allocation challenges. The power allocation process to each user equipment in the base station coverage takes a long time and is inefficient, hence numerous base stations are deployed to serve multiple user equipments. As a result, we develop a deep neural network (DNN) framework in which the user's equipment position is utilized to train the deep model, which is then used to forecast the ideal power distribution depending on the user's location. Compared to the traditional optimization approach, the DNN design helps to obtain the optimal solution of the power allocation problem within a short time via a quick-inference process. Simulation results show that the SINR criterion outperforms the SLNR one. Meanwhile, deep learning achieves excellent results in forecasting power allocation with an accuracy of 85% for the max-min strategy and 99% for the max-product approach.(c) 2022 The Author(s). Published by Elsevier B.V. on behalf of The Korean Institute of Communications and Information Sciences. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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