Details

Autor(en) / Beteiligte

• Schmalen, Laurent
• Alvarado, Alex
• Rios-Muller, Rafael

Titel

Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments

Ist Teil von

• Journal of lightwave technology, 2017-02, Vol.35 (4), p.1015-1027

Ort / Verlag

IEEE

Erscheinungsjahr

2017

Quelle

IEEE Xplore

Beschreibungen/Notizen

• In this paper, we compare different metrics to predict the error rate of optical systems based on nonbinary forward error correction (FEC). It is shown that an accurate metric to predict the performance of coded modulation based on nonbinary FEC is the mutual information. The accuracy of the prediction is verified in a detailed example with multiple constellation formats and FEC overheads, in both simulations and optical transmission experiments over a recirculating loop. It is shown that the employed FEC codes must be universal if performance prediction based on thresholds is used. A tutorial introduction into the computation of the thresholds from optical transmission measurements is also given.