An innovative Squid Game Optimizer for enhanced channel estimation and massive MIMO detection using dilated adaptive RNNs

The Multiple-Input Multiple-Output (MIMO) system can provide improved spectral efficiency and energy performance. However, the computational demand faced by conventional signal recognition techniques has significantly increased due to the growing number of antennas and higher-order modulations. To o...

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Bibliographic Details
Published in:Scientific reports Vol. 15; no. 1; pp. 31921 - 33
Main Authors: Reddy, G. Navabharat, Ravikumar, C. V., Takacs, Oliver, Tolba, Amr
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 29.08.2025
Nature Publishing Group
Nature Portfolio
Subjects:
639/166
639/4077
Algorithms
Antennas
Channel estimation
Communication
Communications systems
Computer applications
Deep learning
Design
Dilated adaptive recurrent neural network with attention mechanism
Efficiency
Humanities and Social Sciences
Massive MIMO detection
Modified Squid Game Optimizer
multidisciplinary
Neural networks
Science
Science (multidisciplinary)
Sensors
Modified Squid Game Optimizer
Channel estimation
Massive MIMO detection
Dilated adaptive recurrent neural network with attention mechanism
ISSN:2045-2322, 2045-2322
Online Access:Get full text
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Summary:The Multiple-Input Multiple-Output (MIMO) system can provide improved spectral efficiency and energy performance. However, the computational demand faced by conventional signal recognition techniques has significantly increased due to the growing number of antennas and higher-order modulations. To overcome these challenges, deep learning approaches are adopted as they offer versatility, nonlinear modelling capabilities, and parallel computation efficiency for large-scale MIMO detection. Therefore, a deep network for channel estimation and massive MIMO detection is developed to reduce computational complexity issues. Initially, a channel estimation scheme is developed to enhance the channel capacity of the MIMO system. It correlates the transmitted and received signals using a confusion matrix. The proposed Modified Squid Game Optimizer (MSGO) is employed for channel state estimation. Based on the obtained channel state information, MIMO detection is performed within the communication system. Here, Multiuser Interference Cancellation (MIC)-based iterative sequential detection is initially conducted. Then, massive MIMO detection is performed using the Dilated Adaptive Recurrent Neural Network with Attention Mechanism (DARNN-AM) through learnable parameters. Moreover, to further optimize the detection performance by fine-tuning the attributes of DARNN-AM, the MSGO is utilized. The proposed network performs multi-segment mapping across multiple constellation points with different modulation schemes. The effectiveness of the proposed deep learning-based MIMO detection system is evaluated by comparing it with existing techniques and algorithms to validate its superior performance.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-025-16899-1