Ref: S. Takabe "Deep Unfolded Simulated Bifurcation for Massive MIMO Signal Detection," arXiv:2306.16264, 2023.
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SB_MIMO.ipynb
Three SB-based detectors (without training) are implemented;
ML-SB: SB minimizing naive squred loss function G-SB: MMSE-guided SB presented by previous study (W.Zhang and Y-L. Zheng, arXiv:2210.14660, 2022)
LM-SB: SB minimizing modified squred loss function with LMMSE-like matrix -
DU_LM_SB_MIMO.ipynb
Deep-unfolded LM-SB for training some internal parameters is implemented. The condition differs from the paper for reducing its execution time. It takes about 5 mins. for training and evaluation on Colab.