Quantum-Based Maximum Likelihood Detection in MIMO-NOMA Systems for 6G Networks

As wireless networks advance toward the Sixth Generation (6G), which will support highly heterogeneous scenarios and massive data traffic, conventional computing methods may struggle to meet the immense processing demands in a resource-efficient manner. This paper explores the potential of quantum c...

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Bibliographic Details
Published in:Quantum reports Vol. 6; no. 4; pp. 533 - 549
Main Authors: Urgelles, Helen, Garcia-Roger, David, Monserrat, Jose F.
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.12.2024
Subjects:
6G mobile communication
Algorithms
Code Division Multiple Access
Combinatorial analysis
Communication
Communications networks
Communications systems
Computers
Efficiency
maximum likelihood detection
MIMO
MIMO communication
Noise sensitivity
NOMA
Nonorthogonal multiple access
Optimization
Optimization algorithms
Quantum computing
quantum optimization algorithms
Quantum physics
Qubits (quantum computing)
Radio signals
Signal processing
wireless communications
Wireless networks
ISSN:2624-960X, 2624-960X
Online Access:Get full text
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Summary:As wireless networks advance toward the Sixth Generation (6G), which will support highly heterogeneous scenarios and massive data traffic, conventional computing methods may struggle to meet the immense processing demands in a resource-efficient manner. This paper explores the potential of quantum computing (QC) to address these challenges, specifically by enhancing the efficiency of Maximum-Likelihood detection in Multiple-Input Multiple-Output (MIMO) Non-Orthogonal Multiple Access (NOMA) communication systems, an essential technology anticipated for 6G. The study proposes the use of the Quantum Approximate Optimization Algorithm (QAOA), a variational quantum algorithm known for providing quantum advantages in certain combinatorial optimization problems. While current quantum systems are not yet capable of managing millions of physical qubits or performing high-fidelity, long gate sequences, the results indicate that QAOA is a promising QC approach for radio signal processing tasks. This research provides valuable insights into the potential transformative impact of QC on future wireless networks. This sets the stage for discussions on practical implementation challenges, such as constrained problem sizes and sensitivity to noise, and opens pathways for future research aimed at fully harnessing the potential of QC for 6G and beyond.
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ISSN:2624-960X
2624-960X
DOI:10.3390/quantum6040036