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Conferences > OFC > 2021 > Th1A > Th1A.47

Towards Low Computational Complexity for Neural Network-Based Equalization in PAM4 Short-Reach Direct Detection Systems by Multi-Symbol Prediction

Zhaopeng Xu, Chuanbowen Sun, Shuangyu Dong, Jonathan H. Manton, and William Shieh

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Abstract

We propose NN-based multi-symbol equalization for a 50-Gb/s PAM4 direct-detection link which significantly reduces computational complexity without sacrificing BER performance of conventional single-output NNs. Complexity reduction of 42.7% is achieved when 8 outputs are selected.

© 2021 The Author(s)

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