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Turbo Autoencoder: Deep learning based channel codes for point-to-point communication channels

NeurIPS 2019 · Point clouds › Point cloud classification · approach: Efficient point sampling architectures · 82 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add interleaving to the TurboAE encoder (ablation)TurboAE · AWGN, block length 100BERHelped
Use interleaved encoding and iterative decoding instead of a plain CNN autoencoderTurboAE · AWGN, moderate block lengthBERHelped
Use a continuous codeword rather than a binary codeword (ablation)TurboAE · ATN channel, especially high SNRBERHelped
Use a continuous codeword rather than a binary codeword (ablation)TurboAE · AWGN channel, high SNRBERHelped
Use a continuous codeword rather than a binary codeword (ablation)TurboAE · Markovian-AWGN channel, high SNRBERMixed
Pretrain with the continuous-power model before applying STE binarization (ablation)TurboAE-binary · AWGN trainingBERHelped
Train encoder and decoder separately instead of simultaneously (ablation)TurboAE · AWGN trainingBERHelped
Increase training batch size (ablation)TurboAE · AWGN trainingBERHelped
Add residual connections to the decoder (ablation)TurboAE · AWGN trainingBERHelped
Increase encoder and decoder network size (ablation)TurboAE · AWGN trainingBERHelped
Fine-tune the model at block length 1000 rather than only testing a model trained at block length 100 (ablation)TurboAE-continuous · AWGN, block length 1000BERHelped
Train the encoder at an SNR matching the test SNR (ablation)TurboAE · AWGNBERHelped

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