Soft-Demapping for Short Reach Optical Communication: A Comparison of Deep Neural Networks and Volterra Series
Journal: Journal of Lightwave Technology
Year: 2021

In optical fiber communication, optical and electrical components introduce nonlinearities, which require effective compensation to attain highest data rates. In particular, in short reach communication, components are the dominant source of nonlinearities. Volterra series are a popular countermeasure for receiver-side equalization of nonlinear component impairments and their memory effects. However, Volterra equalizer architectures are generally very complex. This article investigates soft deep