Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio

Massive multiple inputs and multiple outputs (M-MIMO) are expected to play a vital role in radio systems beyond fifth-generation (B5G) by enhancing the throughput and spectral access of the framework. The use of multiple antennas in MIMO upsurges the complexity of accurate signal detection and degra...

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Main Authors: Arun Kumar, Nishant Gaur, Aziz Nanthaamornphong
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Alexandria Engineering Journal
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Online Access:http://www.sciencedirect.com/science/article/pii/S1110016825007926
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author Arun Kumar
Nishant Gaur
Aziz Nanthaamornphong
author_facet Arun Kumar
Nishant Gaur
Aziz Nanthaamornphong
author_sort Arun Kumar
collection DOAJ
description Massive multiple inputs and multiple outputs (M-MIMO) are expected to play a vital role in radio systems beyond fifth-generation (B5G) by enhancing the throughput and spectral access of the framework. The use of multiple antennas in MIMO upsurges the complexity of accurate signal detection and degrades the overall system’s performance. The conventional zero force equalizer (ZFE), Maximum likelihood detection (MLD), Minimum mean square error (MMSE), and so on upsurge the complexity while detecting the signal. In this article, we proposed a signal detection algorithm based on a long short-term memory (LSTM) neural network known as MLD-LSTM, MMSE-LSTM, and ZFE-LSTM for MIMO frameworks (16 X 16, 256 X 256, and 512 X 512). The parameters include bit error rate (BER), power spectral density (PSD), and complexity of conventional MLD, MMSE, and ZFE methods. The simulation results reveal that the proposed methods effectively enhance the BER and PSD performance at low complexity. The proposed methods obtain the BER and PSD improvement of 30% to 45% as compared with the contemporary methods.
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institution Kabale University
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spelling doaj-art-27ef501099a94c43acd97709b72ee67d2025-08-22T04:55:35ZengElsevierAlexandria Engineering Journal1110-01682025-08-0112776077010.1016/j.aej.2025.06.041Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radioArun Kumar0Nishant Gaur1Aziz Nanthaamornphong2Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Rangpo, IndiaDepartment of Physics, JECRC University, Jaipur, IndiaCollege of Computing, Prince of Songkla University, Phuket, Thailand; Corresponding author.Massive multiple inputs and multiple outputs (M-MIMO) are expected to play a vital role in radio systems beyond fifth-generation (B5G) by enhancing the throughput and spectral access of the framework. The use of multiple antennas in MIMO upsurges the complexity of accurate signal detection and degrades the overall system’s performance. The conventional zero force equalizer (ZFE), Maximum likelihood detection (MLD), Minimum mean square error (MMSE), and so on upsurge the complexity while detecting the signal. In this article, we proposed a signal detection algorithm based on a long short-term memory (LSTM) neural network known as MLD-LSTM, MMSE-LSTM, and ZFE-LSTM for MIMO frameworks (16 X 16, 256 X 256, and 512 X 512). The parameters include bit error rate (BER), power spectral density (PSD), and complexity of conventional MLD, MMSE, and ZFE methods. The simulation results reveal that the proposed methods effectively enhance the BER and PSD performance at low complexity. The proposed methods obtain the BER and PSD improvement of 30% to 45% as compared with the contemporary methods.http://www.sciencedirect.com/science/article/pii/S1110016825007926M-MIMOLSTM-MLDLSTM-ZFELSTM-MMSE
spellingShingle Arun Kumar
Nishant Gaur
Aziz Nanthaamornphong
Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
Alexandria Engineering Journal
M-MIMO
LSTM-MLD
LSTM-ZFE
LSTM-MMSE
title Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
title_full Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
title_fullStr Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
title_full_unstemmed Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
title_short Signal detection of massive MIMO systems using LSTM-based signal detectors for beyond 5G radio
title_sort signal detection of massive mimo systems using lstm based signal detectors for beyond 5g radio
topic M-MIMO
LSTM-MLD
LSTM-ZFE
LSTM-MMSE
url http://www.sciencedirect.com/science/article/pii/S1110016825007926
work_keys_str_mv AT arunkumar signaldetectionofmassivemimosystemsusinglstmbasedsignaldetectorsforbeyond5gradio
AT nishantgaur signaldetectionofmassivemimosystemsusinglstmbasedsignaldetectorsforbeyond5gradio
AT aziznanthaamornphong signaldetectionofmassivemimosystemsusinglstmbasedsignaldetectorsforbeyond5gradio