A machine learning based algorithm for joint improvement of power control, link adaptation, and capacity in beyond 5G communication systems

Jafar Norolahi and Paeiz Azmi ()
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Jafar Norolahi: Tarbiat Modares University
Paeiz Azmi: Tarbiat Modares University

Telecommunication Systems: Modelling, Analysis, Design and Management, 2023, vol. 83, issue 4, No 1, 323-337

Abstract: Abstract In this study, we propose a novel machine learning based algorithm to improve the performance of beyond 5 generation (B5G) wireless communication system that is assisted by Orthogonal Frequency Division Multiplexing (OFDM) and Non-Orthogonal Multiple Access (NOMA) techniques. The non-linear soft margin support vector machine (SVM) problem is used to provide an automatic modulation classifier (AMC) and a signal power to noise and interference ratio (SINR) estimator. The estimation results of AMC and SINR are used to reassign the modulation type, codding rate, and transmit power throughout the frames of eNode B connections. The AMC success rate versus SINR, total power consuming, and sum capacity are evaluated for OFDM-NOMA assisted 5G system. In comparison to recently published methods, our results show that the success rate improves. The suggested method directly senses the physical channel because it computes the SINR and codding rate of received signal just after the signal is detected by successive interference cancellation (SIC). Hence, because of this direct sense, this algorithm can really decrease occupied symbols (overhead signaling) for channel quality information (CQI) in network communication signaling. The results also prove that the proposed algorithm reduces the total power consumption and increases the sum capacity during the eNode B connections. Simulation results compared to other algorithms show more successful AMC, efficient SINR estimator, easier practical implantation, less overhead signaling, less power consumption, and more capacity achievement.

Keywords: Beyond 5G; OFDM; NOMA; Machine learning; Support vector machine; Automatic modulation classification; SINR estimation; Power control; Link adaptation; Network capacity improvement (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s11235-023-01017-1

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