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Approximate Message Passing MIMO Detector With Frequency Domain Initialization for SC-FDMA
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DOI：10.1109/TVT.2023.3310815.png)
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Abstract
En 中文
In this article, multiple-input multiple-output (MIMO) single-carrier frequency division multiple access (SC- FDMA) detection algorithms, including low-complexity approximate message passing (LC-AMP) and frequency domain initialization (FDI) benefitted LC-AMP (FDI-LC-AMP), are proposed. The detailed derivation of LC-AMP algorithm starting from approximate message passing (AMP) is provided. Adaptive nearest-neighbor approximation (ANNA) and modified message damping strategy are illustrated. Additionally, FDI is adopted to improve the convergence performance of LC-AMP. The simulation results show that the proposed LC-AMP/FDI-LC-AMP with ANNA exhibit superior performance compared to other state-of-the-art (SOA) MIMO SC-FDMA detectors with and without channel encoding. The trade-off between complexity and performance is also discussed. Benefitting from FDI and ANNA, FDI-LC-AMP with ANNA can obtain 22.9%-44.0% reduction in complexity compared to the SOAs while performing better.
Keywords:
MIMO communication
Frequency-domain analysis
Detectors
Complexity theory
Discrete Fourier transforms
Message passing
Time-domain analysis
MIMO
SC-FDMA
Bayesian inference
approximate message passing
Journal
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7.1
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1.8W
Citations:
6.6W