Distributed Transmission and Spatially Coupled Forward Error Correction in Regenerative Multipoint-to-Point Networks

TL;DR

This paper explores the performance of coded modulation in multi-hop regenerative optical networks, focusing on decoder input computation, regenerator placement, and strategies for distributed FEC to enhance network reach.

Contribution

It introduces optimized regenerator placement and experimental comparisons of distributed FEC strategies for improved multi-hop optical network performance.

Findings

Optimized regenerator placement increases network reach.

Experimental comparison of distributed FEC strategies.

Guidelines for decoder input LLR computation in multi-hop networks.

Abstract

We investigate the performance of coded modulation for multi-hop regenerative optical networks. We analyze options for computing decoder input LLRs, show reach increases by optimized regenerator placement and experimentally compare strategies and guidelines for distributed FEC.