End-to-End Learning of Pulse-Shaper and Receiver Filter in the Presence of Strong Intersymbol Interference

TL;DR

This paper demonstrates that joint optimization of pulse-shaper and receiver filter in 4-PAM 100 GBd IM/DD systems enhances performance and reduces complexity, especially under strong intersymbol interference conditions.

Contribution

It introduces a method for end-to-end joint optimization of pulse-shaper and receiver filter, improving system performance and reducing filter length.

Findings

Improved system performance with joint optimization.

Shorter filter lengths achieved with the proposed method.

Enhanced robustness against intersymbol interference.

Abstract

We numerically demonstrate that joint optimization of FIR based pulse-shaper and receiver filter results in an improved system performance, and shorter filter lengths (lower complexity), for 4-PAM 100 GBd IM/DD systems.