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Optimization and Analysis of Deep Unfolding Based Double Loop Turbo Equalizers

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Academic year: 2021

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Figure

Figure 1 – Doubly-iterative EP-based receiver structure.
Figure 2 – “Learned-DL-SEP": Unfolded deep EP network (with S layers) at the τ th turbo iteration.
Figure 3 – Comparison of alternative loss metrics with BER and PER as a function of β for a 2-layer equalizer.
Figure 5 – Learned values of the damping parameters as a function of the mutual information I A of prior LLRs provided by the decoder, for 1 to 4 inner “self-iteration” layers.
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