We investigate the risk of overestimating the performance gain when applying neural network based receivers in systems with pseudo random bit sequences or with limited memory depths, resulting in repeated short patterns. We show that with such sequences, a large artificial gain can be obtained which comes from pattern prediction rather than predicting or compensating the studied channel/phenomena.
@article{arxiv.1709.09862,
title = {Applying Neural Networks in Optical Communication Systems: Possible Pitfalls},
author = {Tobias A. Eriksson and Henning Bülow and Andreas Leven},
journal= {arXiv preprint arXiv:1709.09862},
year = {2017}
}